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4531/1

Fizik

Kertas 1

2010

1 ¼ jam

PEPERIKSAAN AKHIR TAHUN 2010

TINGKATAN EMPAT

FIZIK Kertas 1

Satu jam lima belas minit

JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU

1. Kertas ini mengandungi 50 soalan objektif.

2. Jawab semua soalan.

3. Jawab setiap soalan dengan menghitamkan jawapan yang betul di ruangan pada kertas

jawapan.

4. Hitamkan hanya satu ruang untuk setiap soalan.

5. Jika anda hendak menukar jawapan, padamkan tanda yang telah dihitamkan dan hitamkan

jawapan di ruangan yang baru.

6. Rajah dalam soalan yang diberi adalah tidak mengikut ukuran skala yang sebenar kecuali

dinyatakan.

7. Anda boleh menggunakan kalkulator saintifik yang tidak boleh diprogramkan..

8. Senarai formula disediakan pada mukasurat 2.

Kertas soalan ini mengandungi 30 halaman bercetak

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The following information may be useful. The symbols have their usual meaning.

1. a = t

uv

2. v2 = u

2 + as

3. s = ut + at2

4. Momentum = mv

5. F = ma

6. Kinetic energy = 2

1mv

2

7. Potential energy = mgh

8. Elastic potential energy = 2

1Fx

9. ρ = v

m

10. Pressure, p = hρg

11. Pressure, p = A

F

12. Heat, Q = mcθ

13. Heat, Q = ml

14. T

pV = constant

15. E = mc2

16. v = fλ

17. Power, P = time

energy

18. f

1 =

u

1 +

v

1

19. linear magnification = sizeobject

sizeimage

20. λ = D

ax

21. n = rSin

iSin

22. n = depthapparent

depthreal

23. Q = It 24. V = IR 25. Power, P = IV

26. p

s

N

N =

p

s

V

V

27. Efficiency = pp

ss

VI

VIx 100%

28. g = 10 ms-2

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1. Which pair contains scalar quantities only? Pasangan manakah mengandungi kuantiti skalar sahaja?

A Speed and weight Laju dan berat

B Distance and work Jarak dan kerja

C Force and momentum Daya dan momentum

D Displacement and area Sesaran dan luas

2. Hot FM is transmitted with a frequency of 88.2 MHz. This frequency is equal to Hot FM dipancar dengan frekuensi 88.2 MHz. Frekuensi ini adalah sama dengan

A 8.82 x 105 Hz

B 8.82 x 106

Hz

C 8.82 x 107 Hz

D 8.82 x 108 Hz

3. Diagram 1(a) shows the scale of a micrometer screw gauge when the anvil and spindle are closed.

Diagram 1(b) shows the scale of the micrometer screw gauge when it is measuring the thickness of a

piece of glass. Rajah 1(a) menunjukkan skala tolok skru mikrometer apabila rahangnya tertutup. Rajah 1(b) menunjukkan

skala tolok skru mikrometer apabila ia mengukur ketebalan sekeping kaca.

Diagram 1(a)/Rajah 1(a) Diagram 1(b)/ Rajah 1(b)

What is the zero error of the micrometer screw gauge and the actual thickness of the glass? Berapakah ralat sifar tolok skru micrometer dan ketebalan sebenar kaca itu?.

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Zero error /ralat sifar Actual thickness/ ketebalan sebenar

A –0.02 mm 12.84 mm

B –0.02 mm 12.86 mm

C +0.02 mm 12.84 mm

D +0.02 mm 12.86 mm

4. In a rifle shooting competition, Sarah was eliminated from the competition because her shots were not

accurate even though they were consistent. Which target board below shows the shots made by Sarah? Dalam sebuah pertandingan menembak senjata, Sarah disingkirkan daripada pertandingan kerana

tembakannya tidak jitu walaupun ianya persis. Papan sasaran yang manakah menunjukkan tembakan yang

dilakukan oleh Sarah?

5. Between the following, which is the method to reduce random error? Antara berikut, yang manakah merupakan kaedah untuk mengurangkan ralat rawak?

A. Make sure that the reading starts from the zero position Memastikan bacaan bermula dari nilai sifar

B. Use an instrument which has a higher accuracy Menggunakan alat dengan kejituan yang lebih tinggi

C. Repeat the measurement and then find the min value Mengulangi bacaan dan mengambil nilai purata

D. Subtract zero error from the value obtained from the instrument Menolak nilai ralat sifar daripada bacaan yang diambil

A

D

B

C

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6. Which ticker tape shows a motion with a deceleration? Pita detik yang manakah menunjukkan pergerakan dengan nyahpecutan?

7. Diagram 2 shows a velocity-time graph of a moving bicycle.

Rajah 2 menunjukkan graf halaju-masa bagi sebuah basikal yang sedang bergerak.

Diagram 2 / Rajah 2

Which statement describes the motion of the bicycle in the region WX and XY?. Penyataan yang manakah menerangkan pergerakan basikal tersebut dalam bahagian WX dan XY?

.

WX

XY

A Increasing acceleration Pecutan bertambah

Decreasing acceleration Pecutan berkurang

B Increasing acceleration

Pecutan bertambah

Uniform acceleration Pecutan seragam

C Zero acceleration Pecutan sifar

Uniform velocity Halaju seragam

D Uniform acceleration

Pecutan seragam

Zero acceleration Pecutan sifar

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8. The velocity against time graphs of 4 cars; A, B, C and D are as shown in Diagram 3. Graf-graf halaju melawan masa bagi 4 buah kereta; A, B, C dan D adalah seperti ditunjukkan dalam Rajah 3.

Diagram 3 / Rajah 3

Between the cars A, B, C and D, which moves the furthest in 10 s?

Antara kereta A, B, C dan D, yang manakah bergerak paling jauh dalam masa 10 s?

9. Diagram 4 shows a toy car moving up a slope with constant velocity. Rajah 4 menunjukkan sebuah kereta mainan sedang mendaki permukaan condong

dengan halaju malar.

Diagram 4 / Rajah 4

What happens to the kinetic energy and potential energy of the car? Apakah yang sedang berlaku kepada tenaga kinetik dan tenaga keupayaan kereta itu?

Kinetic energy / Tenaga kinetik

Potential energy/ Tenaga keupayaan

A Increasing bertambah

Increasing bertambah

B decreasing

berkurang

decreasing

berkurang

C constant malar

Increasing bertambah

D Increasing bertambah

constant malar

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10. Diagram 5 below shows two objects with different masses are dropped simultaneously from a height.

Which quantity is same for both of the objects? Rajah 5 di bawah menunjukkan dua objek dijatuhkan secara serentak dari satu ketinggian. Kuantiti yang

manakah sama bagi kedua-dua objek itu?

Diagram 5 / Rajah 5

A Weight / Berat

B velocity / halaju

C Final velocity / Halaju akhir

D Rate of change of velocity / Kadar perubahan halaju

11. Diagram 6 shows a student is riding a skateboard and runs over a stone, he is thrown off from the

skateboard. Rajah 6 menunjukkan seorang murid yang sedang menaiki papan luncur dan terjatuh apabila terlanggar batu

This is due to Ini disebabkan

A inertia / inersia

B decrease in velocity / kekurangan halaju

C change in acceleration / perubahan pecutan

D conservation of momentum / keabadian momentum

Diagram 6 / Rajah 6

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12. Diagram 7 shows a boy standing on a skateboard which is not moving. Rajah 7 menunjukkan seorang budak lelaki berdiri di atas papan luncur yang tidak bergerak

What will happen to the skateboard when the boy jumps down of the skateboard at direction P ? Apakah yang terjadi kepada papan luncur apabila budak lelaki tersebut melompat turun dari papan tersebut

pada arah P?

A Stay stationary / Pegun

B Moves towards P / Bergerak ke P

C Moves towards Q / Bergerak ke Q

D Move towards P then back to Q / Bergerak ke P dan patah balik ke Q

13. Diagram 8.1 shows a frog of mass 200 g on a leaf of mass 50 g on the surface of a pond.

Diagram 8.2 shows the frog leaping away from the leaf with a velocity of 5 m s-1.

Rajah 8.1 menunjukkan seekor katak berjisim 200 g di atas daun berjisim 50 g pada permukaan kolam. Rajah

8.2 menunjukkan katak tersebut melompat menjauhi daun dengan halaju 5 m s-1.

Diagram 8.1/ Rajah 8.1 Diagram 8.2 / Rajah 8.2

Diagram 7 / Rajah 7

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What is the recoil velocity of the leaf? Apakah halaju sentakan daun itu?

A -0.05 m s-1

B - 0.20 m s-1

C -5.00 m s-1

D -20.00 m s-1

14. Which is not conserved when inelastic collision occurs? Mana satukah yang tidak terabadi apabila perlanggaran tak kenyal berlaku?

A Total energy / [Jumlah tenaga]

B Total momentum / [ jumlah momentum]

C Total kinetic energy / [jumlah tenaga kinetik]

D Total mass / [jumlah jisim]

15. Which of the following has the largest momentum? Mana satukah antara berikut yang mempunyai momentum paling banyak?

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16.

Diagram 9 / Rajah 9

A student observes that rain drops are falling at an angle of 250 to the vertical as shown in Diagram 9.

If the velocity of the rain drops is V, the magnitude of its vertical component is

Seorang pelajar memperhatikan titisan air hujan sedang jatuh pada sudut 250 kepada garis mencancang

seperti dalam Rajah 9.Jika halaju titisan air hujan ialah V, magnitud komponen tegak halaju titisan air hujan

ialah

A V sin 25o cos25

o

B V sin 25o

C V cos 25o

D 25V

17. Diagram 10 shows Ah Soo of mass 40 kg jumping on a trampoline with an initial velocity of 2.0 m s-1

.

She then bounces back with a velocity of 2.5 m s-1

.

Rajah 10 menunjukkan Ah Soo berjisim 40 kg melompat di atas trampolin dengan halaju awal 2.0 m s-1

.

Dia kemudian melantun semula dengan halaju 2.5 m s-1

.

Diagram 10 / Rajah 10

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What is the impulsive force exerted on Ah Soo if the time of impact is 0.2 s? Berapakah daya impuls yang dikenakan ke atas Ah Soo jika masa perlanggaran ialah 0.2 s ?

A 10 N

B 100 N

C 400 N

D 900 N

18. Diagram 11 shows Proton Exora’s crumple zone. Rajah 11 menunjukkan sebuah Proton Exora dengan zon mudah remuk.


What happen if there is no crumple zone for the cars? Apa yang berlaku sekiranya zon mudah remuk tidak ada bagi sesebuah kereta?

A Time of impact will increase and increase the level of injuries Masa perlanggaran meningkat dan meningkatkan tahap kecederaan

B Time of impact will increase and increase the impulsive force to the car Masa perlanggaran meningkat dan meningkatkan daya impuls terhadap kereta

C Time of impact will decrease and increase the impulsive force to the car Masa perlanggaran berkurang dan meningkatkan daya impuls terhadap kereta

D Time of impact will decrease and avoid the driver from injuries Masa perlanggaran berkurang dan menghalang pemandu daripada cedera

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19. Diagram 12 shows a construction worker pulling a bucket filled with wet cement using a smooth

pulley. The total mass of the bucket and cement is 5 kg. Rajah 12 menunjukkan seorang pekerja binaan sedang menarik baldi berisi simen basah menggunakan takal

licin. Jumlah jisim baldi dan simen ialah 5 kg.


How much force does the worker need to apply if he wants the bucket to move upwards with

an acceleration of 2 m s-2

?

Berapakah daya yang perlu dikenakan oleh pekerja jika dia mahu baldi bergerak ke atas dengan pecutan 2 m

s-2

?

A 20 N

B 40 N

C 50 N

D 60 N

20. Which of the following is true regarding the Principle of Conservation of Energy? Manakah antara berikut BENAR tentang prinsip keabadian tenaga?

A Energy can be created Tenaga boleh dicipta

B Energy can be destroyed Tenaga boleh dimusnahkan

C Total energy in the system is constant Jumlah tenaga dalam suatu sistem adalah malar

D Energy cannot be transformed from one type to another Tenaga tidak boleh berubah daripada suatu bentuk kepada bentuk yang lain

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21.

Diagram 13(a) / Rajah 13(a) Diagram 13(b) / Rajah 13(b)

In Figure 13(a) and 13(b), the mass lifted by the weight lifter is 20 kg. If the height lifted is 30 cm,

what is the work done? Dalam Rajah 13(a) dan 13(b), jisim yang diangkat oleh ahli sukan itu ialah 20 kg.Jika tinggi jisim diangkat

ialah 30 cm, berapakah kerja yang dilakukan?

A. 6 J

B. 60 J

C. 600 J

D. 6000 J

22. Diagram 14 shows Ahmad and Aini getting ready to climb up a flight of stairs. The mass of

Ahmad is double the mass of Aini. Rajah 14 menunjukkan Ahmad dan Aini bersiap sedia untuk menaiki tangga. Jisim Ahmad ialah dua kali ganda

jisim Aini


If they take the same time to climb up to the top, what can you say about Ahmad’s output

power compared to Aini’s? Jika mereka mengambil masa yang sama untuk naik ke puncak, apakah yang boleh anda katakan tentang kuasa

output Ahmad berbanding Aini?

A Larger / Lebih besar

B Equal / Sama

C Smaller / Lebih kecil

D zero / sifar

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23. Maximising the efficiency of machine and device can helps the following except Memaksimakan tahap kecekapan sesebuah mesin akan dapat menolong perkara berikut Kecuali

A to conserve resources of fossil fuels such as coal, petroleum and natural gas Menjimatkan penggunaan bahan api fosil seperti arang batu, petrol dan gas

B to protect the environment from greenhouse effects Melindungi alam sekitar daripada kesan rumah hijau

C to reduce the emission of air pollutants Mengurangkan pelepasan ke arah pencemaran udara

D to decrease the usage of electrical appliances Mengurangkan penggunaan peralatan elektrik

24. Diagram 15 shows a spring of length 20 cm is compressed to a length of 10 cm when a load

of 12 kg is put on top of it. When the load M is put on top of it, the spring compressed to a length of

15 cm Rajah 15 menunjukkan satu spring yang dimampatkan sehingga panjangnya menjadi 10 cm apabila beban

sebanyak 12 kg diletakkan di atasnya. Apabila beban M diletakkan di atasnya, spring itu termampat sehingga

panjangnya menjadi 15 cm


What is the value of M ?

Berapakah nilai M

A 4 kg

B 6 kg

C 8 kg

D 9 kg

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25.

Diagram 16 shows a lady is laying on a ‘bed of nails’. Why she doesn’t feel any pain? Rajah 16 menunjukkan seorang wanita sedang berbaring di atas paku. Mengapakah dia tidak berasa sakit?

A many nails result to huge surface to reduce pressure banyak paku menghasilkan luas permukaan yang besar untuk mengurangkan tekanan

B many nails result to huge surface to reduce time of contact banyak paku menghasilkan luas permukaan yang besar untuk mengurangkan masa sentuhan

C many nails result to huge surface to reduce force banyak paku menghasilkan luas permukaan yang besar untuk mengurangkan daya

D many nails result to huge surface to reduce momentum banyak paku menghasilkan luas permukaan yang besar untuk mengurangkan momentum

26. Diagram 17 shows a small aquatic bird walking across lily pads without sinking into the water. Rajah 17 menunjukkan seekor burung akuatik berjalan merentasi kepingan lily tanpa tenggelam ke dalam air.

Which of the following explains the above situation? Manakah antara berikut menerangkan situasi di atas



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A The bird’s weight is small. Burung mempunyai berat yang kecil

B Its weight is spread out over a large area by its long toes. Berat burung telah disebarkan melalui kawasan yang luas oleh kakinya yang panjang

C Its weight is spread out over a large area of lily pads. Berat burung telah disebarkan melalui kawasan yang luas oleh kepingan lily.

D The density of the bird is less than the density of water. Ketumpatan burung adalah kurang daripada ketumpatan air

27.


Water is flowing at a constant rate in a tube as shown in Diagram 18. Between the sections A,B, C, D

and E, in which is the average pressure least?

Air sedang mengalir pada kadar mantap di dalam satu tiub seperti ditunjukkan dalam Rajah 18. Antara

bahagian A, B, C, D dan E, di manakah air mempunyai tekanan purata paling rendah?

28. Diagram 19 (a) and 19(b) shows two different liquids X and Y. At the same depth, liquid X spurts out

further than liquid Y. Rajah 19(a) dan 19(b) menunjukkan dua cecair X dan Y. Pada kedalaman yang sama, cecair X memancut lebih

jauh berbanding cecair Y.

Diagram 19 (a) /Rajah 19(a) Diagram 19 (b) /Rajah 19(b)

Which statement is true? Manakah antara penyataan berikut yang BENAR?.

A C B D

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A Density of liquid Y is lower than liquid X. Ketumpatan cecair Y adalah lebih rendah berbanding cecair X

B Density of liquid Y is greater than liquid X. Ketumpatan cecair Y adalah lebih rendah berbanding cecair X

C Pressure of liquid Y is higher than liquid X. Tekanan cecair Y adalah lebih tinggi berbanding cecair X

D Pressure of liquid Y is equal to pressure of liquid X. Tekanan cecair Y adalah sama dengan tekanan cecair X

29.

The wall of the dam in diagram 20 is thicker at the base because the pressure in the water is Dinding empangan dalam rajah 20 adalah lebih tebal pada dasarnya kerana tekanan air adalah

A the same at all water levels. sama pada setiap tahap

B directly proportional to the area. Berkadar terus dengan luas

C directly proportional to the depth of the water. Berkadar terus dengan kedalaman air

D inversely proportional to the density of the water. Berkadar songsang dengan ketumpatan air

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30. Diagram 21 shows a fish in an aquarium. (water density is 1000 kgm-3

) Rajah 21 menunjukkan ikan dalam sebuah akuarium. (ketumpatan air adalah 1000 kgm

-3)

How much pressure is exerted by the water on the fish? Berapakah tekanan yang dikenakan oleh air terhadap ikan tersebut?

A 800 000 Nm-2

B 8000 Nm-2

C 7000 Nm-2

D 6000 Nm-2

31. Gas pressure in a closed container is due to the gas molecules Tekanan gas di dalam sebuah bekas bertutup adalah disebabkan oleh molekul gas

A moving randomly bergerak secara rawak

B moving with equal speed bergerak dengan halaju yang sama

C colliding with one another berlanggar sesama sendiri

D colliding with the walls of the container berlanggar dengan dinding bekas

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32. Which situation occurs due to atmospheric pressure? Situasi yang manakah berlaku disebabkan tekanan atmosfera?

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33. Diagram 22 shows a manometer filled with water. One arm of the manometer is connected to a gas

supply. The difference height of the water level between each arm is h cm. Rajah 22 menunjukkan sebuah manometer yang dipenuhi air. Salah satu lengan manometer itu disambungkan

kepada bekalan gas. Perbezaan ketinggian paras air antara lengan adalah h cm.


Height h can be increased by Ketinggian h boleh ditambahkan dengan

A using mercury liquid Menggunakan cecair merkuri

B sloping the manometer tube Menyendengkan tiub manometer

C using tube with bigger diameter Menggunakan tiub yang lebih besar diameternya

D using oil which has a lower density than water Menggunakan minyak yang ketumpatannya lebih rendah daripada air.

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34. Diagram 23 shows a crane lifting a concrete beam. Rajah 23 menunjukkan sebuah kren mengangkat alang konkrit.

What principle is used to move the piston at the arm of the crane? Apakah prinsip yang digunakan untuk menggerakkan omboh pada lengan kren itu?

A Pascal's principle Prinsip Pascal

B Archimedes' principle Prinsip Archimedes

C Bernoulli's principle Prinsip Bernoulli

D Conservation of Momentum Principle Prinsip keabadian momentum

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35. Diagram 24 shows a yatch moving against the direction of the wind. Rajah 24 menunjukkan kapal layar berlayar melawan arah angin.

What can you say about the air velocity and pressure at X? Apakah yang boleh dinyatakan tentang halaju angin dan tekanan di X?

Velocity / Halaju

Pressure/ Tekanan

A Low Rendah

High Tinggi

B Low Rendah

Low Rendah

C High Tinggi

Low Rendah h

D High Tinggi

High Tinggi

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36. Diagram 25 shows a boy with mass of 25 kg on a raft which is floating. Rajah 25 menunjukkan seorang budak dengan jisim 25 kg di atas sebuah rakit yang sedang

terapung.

Jika daya tujah yang bertindak adalah 1100 N, berapakah jisim rakit?

A 1075 kg

B 850 kg

C 250 kg

D 85 kg

37. Diagram 26 shows cold milk being added to hot tea. Rajah 26 menunjukkan susu sejuk ditambahkan kepada teh panas.

Which statement is correct if there are no heat losses to the surroundings? Pernyataan yang manakah betul jika tiada haba hilang ke persekitaran?

A Heat gained by cold milk is less than heat lost by hot tea Penerimaan haba oleh susu sejuk adalah kurang daripada kehilangan haba oleh teh panas

B Heat gained by cold milk is greater than heat lost by hot tea Penerimaan haba oleh susu sejuk adalah lebih banyak daripada kehilangan haba oleh teh

Panas

C Heat gained by cold milk is equal to heat lost by hot tea Penerimaan haba oleh susu sejuk adalah sama dengan kehilangan haba oleh teh panas

D Heat gained by cold milk is zero Penerimaan haba oleh susu sejuk sifar


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38. Heat is

Haba ialah

A. Temperature / Suhu

B. Energy / Tenaga

C. Force / Daya

D. Hotness / Darjah kepanasan

39. Diagram 27 shows a clinical thermometer which is designed to respond quickly to a change in

temperature and to have a high sensitivity. Rajah 27 menunjukkan termometer klinik yang direka untuk memberi respon yang cepat terhadap perubahan

suhu dan mempunyai kepekaan yang tinggi


Which features should the clinical thermometer have? Manakah antara berikut merupakan ciri ciri yang perlu ada pada termometer klinik

Glass bulb

Bore

A Thick glass Kaca tebal

Narrow sempit

B Thick glass Kaca tebal

Wide lebar

C Thin glass Kaca nipis

Narrow sempit

D Thin glass Kaca nipis

Wide lebar

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40.


Diagram 28 shows the heating curve of a 500 g liquid P by a 60 W immersion heater. The specific

heat capacity of the liquid P is Rajah 28 menunjukkan graf pemanasan 500g cecair P oleh pemanas rendam 60W. Muatan haba tentu bagi

cecair P ialah

A. 220 J kg-1 o

C-1

B. 720 J kg-1 o

C-1

C. 1260 J kg-1 o

C-1

D. 1680 J kg-1 o

C-1

41. Four types of cooking pots of the same mass but different specific heat capacity, c are heated at the

same rate for 20 minutes. Which cooking pot shows the smallest temperature increase? Empat jenis periuk yang berjisim sama dipanaskan pada kadar yang sama selama 20 minit. Periuk yang

manakah menunjukkan peningkatan suhu paling kecil?

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42. The latent heat of fusion of a substance is the quantity of heat required to Haba pendam tentu pelakuran bagi suatu bahan ialah kuantiti haba yang perlu untuk

A increase the temperature of the substance Meningkatkan suhu suatu bahan

B Increase the kinetic energy of the molecules in the solid substance. Meningkatkan tenaga kinetic molekul dalam keadaan pepejal

C change the phase of liquid to gas without a change in temperature. Mengubah fasa cecair kepada gas tanpa perubahan suhu

D overcome the attractive force between the molecules in the solid substance so that

they are free to move. Mengatasi daya tarikan antara molekul dalam keadaan pepejal supaya ia bebas bergerak

43. Diagram29 shows the arm of a person being splashed by boiling water and the arm of

another person being exposed to steam. Both the hot water and steam have the same mass. Rajah 29 menunjukkan tangan seorang disimbah air panas and tangan seorang lain yang terdedah kepada

stim. Kedua-dua air panas dan stim mempunyai jisim yang sama.

Diagram29 / Rajah 29

The scalding on the skin caused by steam is more serious than the scalding caused by boiling water

because Kelecuran kulit yang disebabkan oleh stim lebih serius daripada kelecuran kulit yang disebabkan oleh air

mendidih sebab

P : steam has a higher temperature / stim mempunyai suhu yang lebih tinggi

Q : steam has a higher heat content / stim mengandungi lebih banyak haba

R : steam has a higher specific heat capacity / stim mempunyai muatan haba tentu yang

lebih tinggi

A P only / P sahaja

B Q only / Q sahaja

C P and Q only / P dan Q sahaja

D P, Q and R / P, Q dan R.

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44. Diagram 30 shows the heating curve of a substance using a constant rate of heat supply. Rajah 30 menunjukkan graf pemanasan bagi suatu bahan dengan menggunakan haba yang dibekal pada

kadaryang tetap.


Which statement is correct ? Pernyataan yang manakah benar ?

A Heat is released to the surrounding at QR Haba dibebaskan ke persekitaran di QR

B At RS, the substance exists in two states Pada RS, bahan wujud dalam dua keadaan

C The kinetic energy does not change at PQ Tenaga kinetik tidak berubah pada PQ

D Heat is used to break up the bonds between the particles at QR Haba digunakan untuk memutuskan ikatan antara zarah di QR.

45. What remains unchanged when the gas in an air-tight container is compressed? Apakah yang tidak berubah apabila gas dalam sebuah bekas kedap udara dimampatkan?

A The average kinetic energy of the particles

Purata tenaga kinetik zarah

B The gas pressure

Tekanan gas

C The frequency of collisions between the particles and the walls

Kekerapan perlanggaran zarah dengan dinding bekas

D The number of particles per unit volume

Bilangan zarah per unit isipadu

4531/1 SULIT

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46. Diagram 31 shows the air pressure in a tyre of a car before starting a journey. Rajah 31 menunjukkan tekanan udara dalam tayar sebuah kereta sebelum memulakan perjalanan.


After a long non-stop journey, the pressure of the tyre is 212.0 kN m-2

. This is because Selepas perjalanan jauh tanpa henti, tekanan tayar menjadi 212.0 kN m

-2. Ini kerana

A. the volume of air in the tyre decreases.

Isipadu udara dalam tayar berkurang

B. the temperature of air in the tyre increases. Suhu udara dalam tayar bertambah

C. the number of air molecules in the tyre increases. Bilangan molekul udara dalam tayar bertambah

D. frequency of collision between the air molecules in the tyre decreases. Frekunsi perlanggaran antara molekul udara dalam tayar berkurang

47. Diagram 32(a) shows an air bubble released by a diver at the bottom of the sea.

Diagram 32(b) shows the air bubble when it arrives at the surface of the sea. Rajah 32(a) menunjukkan satu gelembung udara dilepaskan oleh seorang penyelam di dasar laut. Rajah 32(b)

menunjukkan gelembung udara itu apabila tiba di permukaan laut

Diagram 32(a)/ Rajah 32(a) Diagram 32(b)/ Rajah 32(b)

4531/1 SULIT

29

The difference in the size of the air bubble can be explained by Perbezaan dalam saiz gelembung udara itu boleh diterangkan oleh

A Boyle's law / hukum Boyle

B Charles' law / hukum Charles

C Pressure law / hukum tekanan

48.


Diagram 33 shows one method of harnessing solar energy. The light phenomenon used by this system

is Rajah 33 menunjukkan satu cara untuk mengumpulkan tenaga cahaya matahari. Fenomena cahaya yang

digunakan ialah

A. Refraction / Pembiasan

B. Reflection / Pantulan

C. Diffraction / Belauan

D. Interference / Interferens

4531/1 SULIT

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49. Diagram 34 shows the image of a boy seen in a mirror. The mirror is for security in a shop. Rajah 34 menunjukkan imej seorang budak yang dilihat di dalam cermin. Cermin itu biasanya diguna untuk

keselamatan di dalam kedai.


What type of mirror is being used? Apakah jenis cermin yang digunakan?

A Plane mirror / Cermin satah

B Convex mirror / cermin cembung

C Concave mirror / cermin cekung

D Parabolic mirror / cermin parabola

50. Diagram 35 shows an observer looking at the image of a fish 50 cm from the water surface. Rajah 35 menunjukkan seorang pemerhati melihat imej seekor ikan 50 cm dari permukaan air.


What is the actual depth of the fish?

Apakah dalam nyata ikan tersebut?

A 26.7 cm

B 37.4 cm

C 66.8 cm

D 71.4 cm

-END OF QUESTION -

40o

PEPERIKSAAN AKHIR TAHUN

TINGKATAN EMPAT 2010

JAWAPAN KERTAS 1

1 B 11 A 21 B 31 D 41 D

2 C 12 C 22 A 32 D 42 D

3 B 13 D 23 C 33 D 43 B

4 A 14 C 24 B 34 A 44 D

5 C 15 B 25 A 35 C 45 A

6 C 16 C 26 C 36 D 46 B

7 D 17 D 27 B 37 C 47 A

8 A 18 C 28 A 38 B 48 B

9 C 19 D 29 C 39 C 49 B

10 D 20 C 30 C 40 C 50 C

4531/2 Nama: ........................................

Physics

Kertas 2 Tingkatan: ..........................

2010

2 ½ jam


TINGKATAN EMPAT

PHYSICS

Kertas 2

Dua jam tiga puluh minit

Kertas soalan ini mengandungi 32 halaman

bercetak

NO. KAD PENGENALAN

Nama pemeriksa

Bahagian

Soalan

Markah

Penuh

Markah

Diperolehi

A

1 4

2 5

3 6

4 7

5 8

6 8

7 10

8 12

B

1 20

2 20

C

3 20

4 20

Jumlah

1. Kertas soalan ini mengandungi tiga bahagian :

Bahagian A, Bahagian B dan Bahagian C

2. Jawab semua soalan dalam Bahagian A, satu

soalan daripada Bahagian B dan satu soalan

daripada Bahagian C.

3. Jawapan kepada ketiga-tiga bahagian ini hendaklah

diserahkan bersama-sama.

4. Jawapan kepada Bahagian A hendaklah ditulis

dalam ruang yang disediakan dalam kertas soalan.

5. Jawapan kepada Bahagian B dan Bahagian C

hendaklah dituliskan pada ruang jawapan yang

disediakan dalam kertas soalan ini. Walau

bagaimanapun kertas tulis tambahan sekiranya

digunakan, perlulah diikat bersama dengan buku

soalan ini. Dalam jawapan anda, persamaan,

gambar rajah, jadual, graf dan cara lain yang

sesuai untuk menjelaskan jawapan anda boleh

digunakan.

6. Rajah tidak dilukis mengikut skala kecuali

dinyatakan.

7. Markah maksimum yang diperuntukkan ditunjukkan

dalam kurungan pada hujung tiap-tiap soalan atau

bahagian soalan.

8. Penggunaan kalkulator saintifik yang tidak boleh

diprogramkan dibenarkan.

Kertas ini mengandungi 29 halaman bercetak

4531/2 SULIT

2

The following information may be useful. The symbols have their usual meaning.

Maklumat berikut mungkin berfaedah (simbol-simbol mempunyai makna yang biasa)

1. a =t

uv

2. v2 = u

2 + 2as

3. s = ut + 2

1at

2

4. Momentum = mv

5. F = ma

6. Kinetic energy / Tenaga kinetik = 2

1mv

2

7. Gravitational potential energy /Tenaga keupayaan = mgh

8. ρ = V

m

9. Heat / Haba , Q = mcθ

10. T

PV= constant / pemalar

11. E = mc2

12. v = fλ

13. Power / Kuasa = time

Energy=

masa

Tenaga

14. f

1 =

u

1 +

v

1

15. λ = D

ax

16. n = r

i

sin

sin

17. Q = It

18. g = 10 ms-2

19. P = ρgh

20. F = kx

21. e = 1.6 x 10 -19

C

4531/2 SULIT

3

Section A /Bahagian A

(60 marks)/ 60 markah

Answer all questions in this section. Jawab semua soalan dalam bahagian ini.

1. Figure 1 shows a micrometer screw gauge when the jaws are closed.

Rajah 1 menunjukkan sebuah tolok skru mikrometer semasa rahangnya rapat

Diagram 1 / Rajah 1

1 (a)

1

a) Name the part label R. [1 mark] Namakan bahagian berlabel R.

......................................................................................................................

1 (b)

1

b) What is the function of the part label R? [1 mark] Apakah fungsi bahagian berlabel R ?

......................................................................................................................

1 (c)

1

c) What is the value of zero error shown by the micrometer above? [1 mark] Berapakah nilai ralat sifar yang ditunjukkan oleh tolok skru mikrometer di atas?

......................................................................................................................

1 (d)

1

Total A1

4

d) Give one reason why the measurement from the micrometer screw gauge is more

accurate compare to a vernier callipers. [1 mark]

Berikan satu sebab tolok skru mikrometer adalah alat yang lebih jitu berbanding

dengan angkup vernier .

......................................................................................................................

4531/2 SULIT

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2. Diagram 3.1 shows a cheetah chasing a deer in a wild world. Given that the mass

and velocity of the cheetah and the deer are 60 kg , 20 m s-1 and 70 kg , 15 m s-1

respectively. Diagram 3.2 shows the cheetah successfully landed it’s jaws on the

deer and both of them are moving with a same velocity of v m s-1. Rajah 2.1 menunjukkan seekor harimau bintang sedang mengejar seekor rusa. Diberi

jisim dan halaju bagi harimau bintang dan rusa itu adalah masing-masing 60 kg , 20 m

s-1

dan 70 kg , 15 m s-1

.

Rajah 2.2 menunjukkan harimau bintang itu berjaya menangkap rusa dan kedua-duanya

bergerak dengan halaju yang sama, v m s-1.

Diagram 2.1 / Rajah 2.1 Diagram 2.2 / Rajah 2.2

2 (a)

1

a) Name a physics quantity that relates the mass and velocity. [1 mark] Namakan satu kuantiti fizik yang mengaitkan jisim dengan halaju.

……………………………………………………………………………………

2 (b)

1

b) State the type of energy that is possessed by the running cheetah. 1mark] Nyatakan jenis tenaga yang dipunyai oleh harimau bintang yang sedang berlari.

……………………………………………………………………………………

2 (c)

2

c) Calculate the final velocity of the cheetah and the deer. [2 marks] Hitung halaju sepunya bagi harimau bintang dan rusa

.

2 (d)

1

Total A2

5

d) Name the Physics principle that is involved in the above hunting. [1 mark] Namakan prinsip Fizik yang terlibat dalam pemburuan di atas.

……………………………………………………………………………………

4531/2 SULIT

5

3. Figure 2 shows the arrangement of the apparatus used to determine the

atmospheric pressure in a laboratory. The length of the glass tube is 110 cm and

the atmospheric pressure in the lab is 76cm Hg. Rajah 2 menunjukkan satu susunan radas digunakan untuk menentukan tekanan

atmosfera di dalam makmal. Panjang tiub kaca adalah 110 cm dan tekanan atmosfera

di dalam makmal adalah 76 cm Hg.

Diagram 3 / Rajah 3

3 (a)

1

a) Name the apparatus shown in Figure 3. [1 mark] Namakan radas yang ditunjukkan pada Rajah 3.

…………………………………………………………………………..............

3 (b)

1

b) What is X? [1 mark] Apakah X?

……………………………………………………………………………...........

3 (c )(i)

1

(c) i) What is the value of H? [1 mark] Apakah nilai H?

……………………………………………………………………………...........

3 (c)(ii)

1

ii) What happens to the height, H, when this apparatus is submerged in water.

[1 mark] Apakah yang berlaku kepada ketinggian, H, apabila radas ini ditenggelamkan ke

dalam air.

……………………………………………………………………………….......

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3 (c)(ii)

1

iii) Give a reason for your answer in c(ii). [1 mark] Berikan satu sebab kepada jawapan anda di c (ii)

…………………………………………………………………………..............

3 (d)

1

Total A3

6

d) State one application of atmospheric pressure in everyday life. [1 mark]

Nyatakan satu aplikasi tekanan atmosfera dalam kehidupan harian

……………………………………………………………………………...........

4531/2 SULIT

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4. Diagram 4 shows a spring. Rajah 4 menunjukkan satu spring.

Diagram 4 / Rajah 4

4 (a)(i)

1

a)

i)

When a load is attached to the spring ; Apabila satu beban dilekatkan pada spring

What happen to the length of the spring? [1 mark] Apakah yang berlaku pada panjang spring?

……………………………………………………………………………………

4(a)(ii)

1

ii) What is the energy stored in the spring? [ 1 mark] Apakah tenaga yang tersimpan dalam spring?

……………………………………………………………………………………

4 (a)(iii)

1

iii) If the number of load is increased, what will happen to the energy in 4a(ii)?

[ 1 mark] Jika bilangan beban ditambah, apakah yang akan berlaku kepada tenaga di 4 a(ii)?

……………………………………………………………………………………

b) The initial length of a spring is 15 cm. When a load with mass 300g is attached

to the spring, the length of the spring is 21 cm. Panjang asal spring adalah 15 cm. Apabila beban berjisim 300g dilekatkan pada

spring. panjang spring adalah 21 cm.

4531/2 SULIT

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4 (b)

2

What is the length of the spring if a load with mass 500g is attached to the

spring? [ 2marks] Berapakah panjang spring jika beban berjisim 500g dilekatkan pada spring?

4 (c)

2

Total A4

7

c) The spring in Diagram 4 is not suitable to be used as a spring cradle.

Suggest modifications to be done based on the characteristics given below. Spring dalam Rajah 7 tidak sesuai digunakan untuk buaian spring.

Cadangkan pengubahsuaian-pengubahsuaian yang perlu dilakukan berdasarkan ciri-

ciri yang diberi di bawah.

(i) Arrangement of the springs. [1 mark] Susunan spring

……………………………………………………………………………………

(ii) Reason[1 mark] Sebab

……………………………………………………………………………………

4531/2 SULIT

9

5. Diagram 5 shows a series of observation and record made by a student on a

melting ice cube that is put in a metal plate. Rajah 5 menunjukkan satu siri pemerhatian dan catatan yang dibuat oleh seorang

pelajar tentang peleburan seketul ais di dalam satu bekas logam.

5 (a)

2

a) Name two sources where the ice cube obtained the heat to change into ice

water. [ 2 marks] Namakan dua punca di mana ketulan ais itu mendapat haba untuk menukar menjadi

cecair ais.

...................................................................................................................

...................................................................................................................

5 (b)

1

b) State the change in physical state when the ice cube is melted into ice water.

[1 mark] Nyatakan perubahan keadaan fizik apabila ketulan ais itu melebur menjadi cecair ais.

...................................................................................................................

4531/2 SULIT

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5 (c)(i)

1

c) (i) Name the physics quantity that is involved when ice cube change to water at

constant temperature. [1 mark] Namakan kuantiti fizik yang terlibat apabila ais bertukur menjadi air pada suhu tetap.

...................................................................................................................

5 (c)(ii)

1

ii) Why the temperature is remain constant when ice melts to water? [1 mark] Mengapa suhu kekal tidak berubah apabila ais bertukar menjadi air?

...................................................................................................................

5 (d)

2

d) If the amount of heat absorbed by the ice cube is 6.72 x l03 J, calculate the

specific latent heat of fusion. [2 mark] Jika jumlah haba yang diserap oleh ketulan ais itu ialah 6.72 x l0

3 J, hitung haba

pendam tentu pelakuran.

5 (e)

1

Total A5

8

e) Why water droplets are formed on the outer surface of the metal plate?[1 mark] Mengapa titisan air terbentuk di permukaan luar bekas logam itu?

...................................................................................................................

4531/2 SULIT

11

6. Diagram 6.1 and 6.2 show two watermelons fall off a table and drop on to

surface A and surface B respectively. Rajah 6.1 dan 6.2 menunjukkan dua biji tembikai jatuh dari sebuah meja ke atas

permukaan A dan permukaan B masing-masing

Diagram 6.1/Rajah 6.1 Diagram 6.2/ Rajah 6.2

6 (a)

1

a) What is meant by impulse? [1 mark] Apakah yang dimaksudkan dengan impuls

..................................................................................................................

b) With reference to Diagram 6.1 and Diagram 6.2, Merujuk kepada Rajah 6.1 dan Rajah 6.2,

6 (b)(i)

1

i) Compare the force on the watermelons that strike on Surface A and Surface B.

[1 mark] Bandingkan daya pada tembikai yang menghentam ke atas Permukaan A dan

permukaan B.

..................................................................................................................

6 (b)(ii)

1

ii) Compare the time of impact of the watermelons on Surface A and Surface B.

[1 mark] Bandingkan masa hentaman tembikai itu pada Permukaan A dan Permukaan B.

..................................................................................................................

6 (b)(iii)

1

iii) State the relationship between the force produced in a collision and the time of

impact [1 mark] Nyatakan hubungan antara daya yang dihasilkan dalam suatu perlanggaran dengan

masa hentaman

..................................................................................................................

4531/2 SULIT

12

c) Mark with a (√ ) for the correct statement about the change of momentum of the

watermelons in both situations above. [1 mark] Tandakan (√ ) pada pernyataan yang betul mengenai perubahan momentum pada

tembikai dalam dua situasi di atas.

The change of momentum of the watermelon in Diagram 6.1 is greater

than that of the watermelon in Diagram 6.2. Perubahan momentum pada tembikai dalam Rajah 6.1 adalah lebih besar

daripada tembikai dalam Rajah 6.2.

The change of momentum of the watermelon in Diagram 6.2 is greater

than that of the watermelon in Diagram 6.1 Perubahan momentum pada tembikai dalam Rajah 6.2 adalah lebih besar

daripada tembikai dalam Rajah 6.1.

6 (c)

1

The change of momentum of the watermelon in Diagram 6.1 is equal

to that of the watermelon in Diagram 6.2 Perubahan momentum pada tembikai dalam Rajah 6.1 adalah sama dengan

tembikai dalam Rajah 6.2.

6 (d)

1

d) Suggest a suitable material for surface B. [1 mark]

Cadangkan satu bahan yang sesuai bagi permukaan B.

..................................................................................................................

6 (e)

2

Total A6

8

.

Diagram 6.3/Rajah 6.3

By referring to the Diagram 6.3, explain how the driver is able to avoid serious

injuries then the car stopped suddenly. [2 marks] Rujuk pada Rajah 6.3, terangkan bagaimana pemandu itu dapat mengelakkan

kecederaan yang parah ketika kereta berhenti dengan tiba-tiba.

……………………………………………………………………………………

……………… …………………………………………………………….... ….

4531/2 SULIT

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7.

Diagram 7.1 shows a dentist chair for children. The chair uses a hydraulic

system. Rajah 7.1menunjukkan sebuah kerusi untuk mencabut gigi kanak-kanak. Kerusi ini

menggunakan sistem hidraulik.

Diagram 7 / Rajah 7

7 (a)

1

a) Name the physics principle used in a hydraulic system. [1 mark]

Namakan prinsip fizik yang digunakan dalam sistem hidraulik.

…………………………………………………..........................................................

7 (b)

1

b) Explain how the chair can be lifted up when the pedal is pressed down?

[2 marks] Terangkan bagaimana kerusi itu dapat dinaikkan apabila pedal ditekan ke bawah?

……………………………………………………………………………………………

……………………………………………………………………………………………

7 (c)

1

c) Why the system is less effective if air bubbles are present in hydraulic fluid?

[1 mark] Mengapakah system itu kurang berkesan jika gelembung udara wujud dalam cecair

hidraulik?

……………………………………………………………………………………………

4531/2 SULIT

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7 (d)

2

d) The cross sectional area of the big piston and the small piston are 100 cm2 and

20 cm2 respectively. The mass of the chair is 20 kg. [2 marks]

Calculate the force exerted on the small piston to lifted up the child of 30 kg.

Luas keratan rentas omboh besar dan omboh kecil masing-masing adalah 100 cm2

dan 20 cm2 Jisim kerusi ialah 20 kg.

Hitungkan daya yang dikenakan pada omboh kecil untuk mengangkat seorang kanak-

kanak berjisim 30 kg.

.

7 (e)

4

e) Suggest the modifications required to the size of piston and the size of the seat

so that the chair is suitable and safe for the use of adults. Give the reasons.

[4 marks] Cadangkan pengubahsuaian yang perlu dilakukan pada saiz omboh dan saiz tempat

duduk supaya kerusi ini sesuai dan selamat digunakan untuk orang dewasa. Berikan

sebab.

Piston size / Saiz piston :

…………………………………………………..........................................................

Reason/ sebab

…………………………………………………..........................................................

Seat size / Saiz tempat duduk:

…………………………………………………..........................................................

Reason/ sebab

…………………………………………………..........................................................

7 (f)

1

Total A7

10

f) State one application of a hydraulic system in everyday life. [1 mark]

Nyatakan satu aplikasi tekanan atmosfera dalam kehidupan harian

……………………………………………………………………………...........

4531/2 SULIT

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8. Diagram 8.1 and Diagram 8.2 show a block of iron and a block of aluminium,

each of mass 250 g, are heated by an immersion heater. The power of the

immersion heater is 50 W. Rajah 8.1 dan Rajah 8.2 menunjukkan sebuah blok besi dan sebuah blok aluminium

setiap satu berjisim 250 g dipanaskan dengan pemanas rendam. Kuasa pemanas

rendam itu adalah 50 W.

Diagram 8.1/ Rajah 8.1 Diagram 8.2/ Rajah 8.2

The temperature-time graph for the two experiments are shown in diagram 8.3

.Graf suhu-masa bagi kedua-dua eksperimen ditunjukkan dalam Rajah 8.3.

Diagram 8.3/ Rajah 8.3

4531/2 SULIT

16

8 (a)

1

a) What is meant by heat? [ 1 mark] Apakah yang dimaksudkan dengan haba?

……………………………………………………………………………………

8 (b)(i)

2

8 (b)(ii)

2

b) Based on Diagram 8.3, calculate the change in temperature per minute for; Berdasarkan Rajah 8.3, hitung perubahan suhu per minit untuk

(i) Iron [2 marks] Besi

(ii) Aluminium [2 marks] Aluminium

8 (c)

2

c)

Based on your calculation, which metal gets hot faster? Explain your answer.

[2 marks] Berdasarkan kepada kiraan anda, logam yang manakah lebih cepat panas? Terangkan

jawapan anda.

……………………………………………………………………………………

…………………………………………………………………………………..

4531/2 SULIT

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8 (d)

3

d) Determine the specific heat capacity for iron and aluminium. [3 marks] Tentukan muatan haba tentu besi dan aluminium. [3 markah]

8 (e)

2

Total A8

12

e) Table 1 shows the specific heat capacity of materials which could be used to

make a frying pan. Jadual 8 menunjukkan muatan haba tentu bahan yang boleh digunakan untuk

membuat kuali.

Material

Bahan

Specific heat capacity/ J kg-1

oC

-1

Muatan haba tentu

A 780

B 1528

C 1415

TABLE 1

Jadual 1

Based on your answer in (c) and (d) , which material would be suitable to make

a frying pan?Explain your answer. [ 2 marks] Berdasarkan kepada jawapan anda di (c) dan (d), bahan yang manakah sesuai untuk

dibuat kuali? Terangkan jawapan anda. [2 markah]

…………………………………………………………....................................

…………………………………………………………....................................

…………………………………………………………....................................

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Section B

Bahagian B

[20 marks]

[20 markah]

Answer any one question from this section.

Jawab mana-mana satu soalan daripada bahangian ini.

9

(a)

Diagram 9.1 shows a stationary pistol on a smooth surface.

Diagram 9.2 shows the pistol and bullet after the pistol has been fired by remote

control.

Rajah 9.1 menunjukkan sebuah pistol pegun di atas permukaan licin.

Rajah 9.2 menunjukkan pistol dan peluru selepas tembakan dilepaskan secara

kawalan jauh.

(i) What is the meaning of momentum?

Apakah maksud dengan momentum?

[1 mark]

4531/2 SULIT

19

(b)

(ii) State the total momentum of the pistol and bullet in Diagram 9.1

Using Diagram 9.1 and Diagram 9.2, compare the total momentum

Before and after the bullet is fired.

Using Diagram 9.2, compare the magnitude and direction of the

Momentum of the bullet and pistol.

Name the physics principle that can be applied to the motion of the

bullet and pistol.

Menggunakan Rajah 9.1 dan Rajah 9.2, bandingkan jumlah

momentum sebelum dan selepas peluru itu ditembak.

Menggunakan Rajah 9.2, bandingkan magnitud dan arah momentum

Peluru dan pistol.

Nyatakan prinsip fizik yang boleh diaplikasi kepada gerakan peluru

dan pistol itu.

[5 marks]

Describe, in terms of momentum, the propulsion of a rocket engine.

Terangkan, dalam sebutan momentum, rejangan sebuah enjin roket.

[4 marks]

4531/2 SULIT

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(c)

Diagram 9.3 shows a the structure of a jet engine for a small jet plane.

Rajah 9.3 menunjukkan struktur sebuah enjin jet bagi sebuah kapal terbang jet yang

kecil.

Daigram 9.3

Rajah 9.3

You are required to give some suggestions to improve the design of the jet engine so

that it can be used on a larger jet plane that travels at a higher speed.

Using the knowledge on forces and motion and the properties of materials, explain

the suggestions based on the aspects labeled on Diagram 9.3

Anda dikehendaki memberi beberapa cadangan untuk membaiki reka bentuk enjin jet

itu supaya enjin jet itu boleh digunakan pada sebuah kapal terbang jet yang lebih

besar dan bergerak lebih laju.

Menggunakan pengetahuan tentang gerakan, daya dan sifat-sifat bahan

terangkan cadangan itu yang merangkumi aspek-aspek yang dilabel pada Rajah 9.3.

[10 marks]

4531/2 SULIT

21

10

(a)

Diagram 10.1(a), Diagram 10.2(b) and Diagram 10.2(c) show a rock hung on a spring

balance in air, immersed in water and cooking oil respectively. The reading of the

spring balance for each situation is as shown in Diagram 10.1.

Rajah 10.1(a),Rajah 10.1(b) dan Rajah 10.1(c) menunjukkan sebiji batu digantung

pada neraca spring di udara, direndam dalam air dan minyak masak masing-

masing.Bacaan neraca spring bagi setiap keadaan adalah seperti pada Rajah 10.1.

Diagram 10.1

Rajah 10.1

(i) What is meant by weight? Apakah yang dimaksudkan dengan berat?

[1 mark]

(ii) Using Diagram 10.1(a), Diagram 10.1(b) and Diagram 10.1(c), compare

the spring balance reading, the weight lost of the rock and the density of

the water and the cooking oil.

Relating the weight lost and the density, deduce a relevant physics

concept.

4531/2 SULIT

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b)

Menggunakan Rajah 10.1(a), Rajah 10.1(b) dan Rajah 10.1(c),

bandingkan bacaan neraca spring, berat hilang dan ketumpatan air

dan ketumpatan minyak masak.

Hubungkaitkan berat hilang dan ketumpatan bagi menghasilkan

satu konsep fizik yang sesuai..

[4 marks]

(iii)Name the physics principle that explains the above situations.

Namakan prinsip fizik yang menerangkan situasi di atas.

[1 mark]

Diagram 10.2 shows a copper block and a bowl shape copper sheet of same mass. Rajah 10.2 menunjukkan satu blok kuprum dan sekeping kuprum berbentuk mangkuk yang

sama jisim

.

Explain why the copper block sink in water but the bowl shape copper sheet floats on

water. Terangkan mengapa blok kuprum tenggelam dalam air tetapi kepingan kuprum berbentuk

mangkuk timbul di atas air.

[4 marks]

Diagram 10.2

Rajah 10.2

4531/2 SULIT

23

(c)

Diagram 10.3 shows a barge used to transport goods from fresh water port to the ship

anchored away from the seaside. Rajah 10.3 menunjukkan sebuah tongkang digunakan untuk mengangkut barang dari

pelabuhan air tawar ke kapal yang berlabuh berjauhan dengan pantai.

Diagram 10.3

Rajah 10.3

Using suitable physics concepts, explain the required modification needed in

designing a barge that can carry more and heavier goods, move faster and safe in

fresh and salt water.

You can emphasise on the following aspects in your modification;

Menggunakan konsep fizik yang sesuai terangkan pengubahsuaian yang diperlukan dalam

merekabentuk sebuah tongkang yang dapat mengangkut barang yang lebih berat dan banyak,

bergerak lebih laju dan selamat di kawasan air tawar dan masin.

Pengubahsuaian adalah merangkumi aspek-aspek berikut:

i. material used

bahan yang digunakan

ii. plimsoll line

garisan plimsoll

iii. shape and size of the barge

bentuk dan saiz tongkang

[10 marks]

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Section C

Bahagian C

[20 marks]

[20 markah]

Answer any one question from this section.

Jawab mana-mana satu soalan daripada bahangian ini.

11

(a)

(b)

(c)

What is meant by temperature? Apakah yang dimaksudkan dengan suhu?

[1 mark]

Explain how a new thermometer can be calibrated? Terangkan bagaimana janjangkasuhu baru boleh disenggatkan?

[4 marks]

Diagram 11.1

Rajah 11.1

Diagram 11.1 shows a cooling system of a motorcycle engine.

You as a mechanical engineer is given a task to study characteristics of metal shown

in the Table11.2 to be used as effective fins in the cooling system of the motorcycle

engine.

Rajah 11.1 menunjukkan system penyejukan enjin motosikal.

Anda sebagai jurutera mekanikal diberi tugasan untuk menghaji cirri-ciri logam yang

ditunjukkan dalam Jadual 11.2 untuk digunakan sebagai sirip enjin motosikal yang efektif.

4531/2 SULIT

25

(d)

Types of

metal

Jenis logam

Specific heat

capacity

Jkg-1

ºC-1

Muatan haba

tentu

Jkg-1

ºC-1

Melting point

ºC

Takat lebur

ºC

Heat

conductor

Konduktor

haba

Rate of

expansion

Kadar

pengembangan

P 300 1020 Good

Baik

Moderate

Sederhana

Q 360 700 Moderate

Sederhana

High

Tinggi

R 450 1600 Good

Baik

Moderate

Sederhana

S 900 720 Moderate

Sederhana

High

Tinggi

Table 11

Jadual 11

(i) State suitable characteristics of metal that is used as fins in the

motorcycle engine Nyatakan kesesuaian ciri-ciri logam digunakan sebagai sirip penyejuk dalam

enjin motosikal.

(ii) Determine the most suitable metal that can be used as fins. Give reasons

for your choice. Tentukan logam yang paling sesuai digunakan untuk sirip penyejuk. Berikan

sebab kepada pilihan anda.

.[10 marks]

(i) A piece of fin in the engine of a motorcycle with a mass of 0.5 kg made

from metal R. If the temperature increased by 10ºC in an hour, how

much of energy being absorbed by the fin. Sekeping sirip pada enjin motosikal berjisim 0.5 kg dibuat daripada logam R.

Jika suhu meningkat sebanyak 10ºC dalam satu jam, berapakah tenaga haba

telah diserap oleh sirip tersebut?

. [3 marks]

(ii) If 10 fins identical to the one in (d)(i) are used in the motorcycle engine,

how much energy is lost by the engine in one hour? Jika terdapat 10 keping siri-sirip yang serupa seperti (d)(i) pada enjin

motosikal, berapakah jumlah tenaga yang hilang oleh enjin itu dalam sejam?

.[2 marks]

4531/2 SULIT

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12

Diagram 12.1 shows a scene at a supermarket. There is a mirror at the top corner. Rajah 12.1 menunjukkan satu pemandangan di sebuah pasar raya. Terdapat sebuah cermin

terletak di atas suatu penjuru.

Diagram 12.1

Rajah 12.1

This is a curved mirror. Its function is to show the images of a large area of the

supermarket so that the supervisors can keep a watch on the shoppers. Cermin ini adalah sebuah cermin lengkung. Fungsinya ialah untuk melihat imej bagi suatu

ruang yang besar bagi pasar raya tersebut supaya penyelia pasar raya itu dapat mengawal

pelanggannya.

Table 12 shows four different type of curved mirrors, P. Q, R and S, and the

specifications for four aspects of the mirrors. Jadual 12 menunjukkan empat jenis cermin lengkung, P, Q, R dan S , dan spesifikasi bagi

empat aspek cermin tersebut.

4531/2 SULIT

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(a)

(b)

Type of

mirror Jenis cermin

Aspects of the mirror

Aspek cermin

Type of

curvature Jenis

lengkungan

Focal length

of mirror Panjang fokus

cermin

Diameter of

mirror Diameter

cermin

Location of

mirror

Kedudukan

cermin

P Concave Cekung

Long Panjang

Large Besar

On the ceiling Di atas siling

Q

Convex Cembung

Short Pendek

Large Besar

Top corner of

the wall Penjuru atas

tepi dinding

R

Convex Cembung

Short Pendek

Small Kecil

At the middle

of the wall Di tengah-

tengah dinding

S Convex Cembung

Long Panjang

Large Besar

On the ceiling Di atas siling

Table 12 Jadual 12

Name the optical phenomenon that is responsible for the formation of images in the

curved mirrors.

Namakan fenomena optik yang bertanggungjawab membentuk imej bagi cermin lengkung.

[1 mark]

You are required to choose the most suitable type of mirror for this purpose . Study

the various aspects and specifications for the four types of mirrors.

(i) Explain how each of the four aspects mentioned can affect your choice

of the most suitable mirror.

(ii) Based on the specifications given, choose the most suitable mirror.

Justify your choice Anda diminta memilih jenis cermin yang paling sesuai untuk tujuan ini. Kaji berbagai

aspek dan spesifikasi bagi keempat-empat jenis cermin.

(i) Terangkan setiap satu daripada tiga aspek yang dinyatakan yang

mempengaruhi pilihan anda.

(ii) Berdasarkan spesifikasi yang diberikan, pilih cermin yang paling sesuai.

Berikan sebab pilihan anda.

[10 marks]

4531/2 SULIT

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(c)

Diagram 12.2 shows a concave mirror. F is the focal point along the principal axis.

C is the centre of curvature.

Rajah 12.2 menunjukkan sebuah cermin cekung. F ialah titik fokus bagi paksi

utama, C ialah pusat lengkungan.

Diagram 12.2

Rajah 12.2

(i) Copy this diagram in your answer script and draw the ray diagram for an

object in the form of an upright arrow to show how an upright

magnified image can be formed. Salin rajah ini di dalam kertas jawapan anda dan lukis gambar rajah sinar

untuk objek ini dalam bentuk anak panah ke atas untuk menunjukkan

bagaimana imej tegak yang dibesarkan terbentuk.

[4 marks]

(ii) Give two examples of this application based on part (c)(i).. Beri dua contoh aplikasi ini berdasarkan bahagian (c)(i).

[2 marks]

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(d)

An object is placed between the focal point F and the centre of curvature, C of a

concave mirror as shown in Diagram 12.3. The radius of curvature is 20 cm

Satu obkek diletakkan di antara titik fokus F dan pusat lengkungan C bagi sebuah

cermin cekung ditunjukkan di dalam Rajah 12.3. Diberi radius lengkungan ialah 20

cm.

Diagram 12.3

Rajah 12.3

How far should the object be moved from its original position, so that the image of

the same size is produced?

Berapa jauhkah objek itu perlu digerakkan dari posisi asal, supaya dapat

menghasilkan imej yang sama saiz?

[3 marks]

-END OF QUESTIONS PAPER-

KERTAS SOALAN TAMAT

1

Peperiksaan Akhir Tahun Tingkatan 4 2010

Marking scheme Paper 2 (4531/2)

Section A

QUESTION 1 Mark/marks

1 a) Ratchet 1

b) To prevent the user from exerting undue pressure on the object @

To prevent the user from exerting too much pressure / over tightening

1

c) -0.02mm 1

d) Able to measure the smallest unit 0.01mm / higher sensitivity 1

TOTAL 4

QUESTION 2

2 a) Momentum 1

b) Kinetic energy 1

c) (60)(20) + (70)(20) = (60 + 70)(V)

V = 17.31 m s-1

1

1

d) Principle of Conservation of Momentum 1

TOTAL 5

QUESTION 3

3)a) Barometer / simple barometer /mercury barometer 1

b) Vacuum 1

c)i) 76 cm Hg 1

ii) H increase 1

iii) Because the total pressure increase.// The pressure outside glass tube

increases // pressure of water + atmospheric pressure

1

d) Siphon // suction cup// vacuum cleaner// straw// syringe//sucker 1

TOTAL 6

QUESTION 4

4a)i) Length increases/ longer /extended 1

ii) Elastic potential energy 1

iii) Increase 1

b) Extension ( 21-15 ) cm= 6 cm

300g-------6 cm

100g-------2 cm

500g--------2 x 5 = 10 cm

Length of spring = 15 + 10 = 25 cm

1

1

c)i)

ii)

Parallel

Load is shared equally among the spring / can support higher load

1

1

TOTAL 7

QUESTION 5

5 (a) Heat from the surrounding

Heat from the metal plate

1

1

(b) Solid to liquid 1

c (i) Specific latent heat of fusion 1

(ii) Heat absorbed is used to overcome the forces of attraction between the

molecules of the ice

1

2

(d) L = 6.72 x 103 J

20 x 10-3

kg

= 3.36 x 105 J kg

-1

1

1

(e) Condensation of water vapour on cool surface 1

TOTAL 8

QUESTION 6

6)a) Change of momentum/product of Force with time of impact 1

b) (i)

Force on the watermelon in Diagram 6.1 is larger than the force on the

watermelon in Diagram 6.2 / vice versa

1

ii) Time of impact on surface A is shorter than time of impact on surface

B / vice versa

1

iii) A shorter time of impact will produce a larger force 1

c) The change of momentum of the watermelon in Diagram 6.1 is equal

to that of the watermelon in Diagram 6.2

1

d) Sponge/carpet/towel/cloth/grass & other 1

e) Body will be hold back by the seat belt when car stopped suddenly

The seat belt will lengthen slightly, the impulsive force inflicted on the

body will be less

1

1

TOTAL 8

QUESTION 7

7)a) Pascal’s Principle 1

b) When the small piston is pressed down, the pressure is exerted on the

liquid and transmits uniformly to the large piston

The force is produced and pushes the chair up

1

c) Some of the force is used to compress air bubble 1

d)

20

F =

100

500

100 N

1

1

e) Increase the cross sectional area of the big piston @ Decrease the size

of the small piston

1

To increase the force multiplier 1

Enlarge the size of the seat /Strengthen the seat belt 1

To accommodate the larger bodies of adults/

To withstand the heavier adults without damage

1

f) hydraulic lift// hydraulic brake// hydraulic pump //hydraulic jeck 1

TOTAL 10

QUESTION 8

8. (a) Energy transfer from higher temperature body to lower temperature

// type of energy that flow //form of energy

1

(b) (i) 80

2

= 40 °C per minute

1

1

(ii) 100 -20

7

= 80

7

= 11.43 °C per minute

1

1

(c) -Iron/Besi 1

3

-The rate of change of temperature is higher 1

(d) C iron = 50 x 2 x 60

0.25 x 80

= 300 J kg-1 °C-1

C Al = 50 x 8 x 60

0.25 x 80

= 1200 J kg-1 °C-1

1

1

1

(e) - A

- it has lowest specific heat capacity //

- easily to get hot

1

1

TOTAL 12

SECTION B

NO SUGGESTED ANSWER MARKS 9 (a)(i)

(ii) (b) (c)

State the meaning correctly - Product of mass and velocity / /momentum = mass x velocity 1

State the total momentum in Diagram 9.1 correctly

- Zero

Compare the total momentum correctly

- Total momentum before the bullet is fired = total momentum

after the bullet is fired.

Compare the magnitude of the momentum of the bullet and

pistol correctly

- Equal

Compare the direction of the momentum of the bullet and

pistol correctly

- Opposite

Name the physics principle correctly

- Principle of Conservation of Momentum

- Liquid oxygen and liquid hydrogen fuel is pump into the

combustion chamber for combustion

- The exhaust gas is ejected out of the rocket nozzle at high speed.

- The ejected exhaust gas at high speed has a large momentum.

- According to the Principle of Conservation of Momentum, the

rocket acquires a large momentum forward

Aspects/ Characterisitics Explanations/Reasons

Blades Using bigger

blades/Increase the number

of blades/ increase the

speed of blade

Increase the air intake

Material of

blade

Blade made of strong

material

Can withstand strong

pressure/it will not break

easily

Fuel injector Increase the number of fuel

injectors//

add more fuel injectors

More fuel to be burnt to

produce greater thrust

Combustion

chamber

Increase the size of the

combustion chamber

More space for the fuel to

be burnt

Nozzle - Decrease the diameter of

the nozzle

- Exhaust gas ejected at

higher velocity/higher

momentum

1

1

1

1

1

1

1

1

1

1

1,1

1,1

1,1

1,1

1,1

TOTAL 20

4

10 a)(i)

(ii)

(iii)

(b)

(c)

Gravitational force // the product of mass and gravitational due to gravity :

W =mg

Weight lost in Diagram 10.1(b) > Diagram 10.1(c) // vise versa

Apparent weight in Diagram 10.1(c) > Diagram10.1(b) // vise versa

Density of water > density of oil

The greater the density of liquid, the greater the weight lost / less

apparent weight

Archimedes Principle / Law of floatation

Name two correct force (uptrust and weight)

Uptrust small because small volume // vise versa

Block sink because weight > upthrust

Sheet float because weight = upthrust

Modifications Explanations

Strong material Can withstand great force

Low density material Light weight

Two stage plimsoll line Save in fresh and salt water

Big size Can place more good

Aerodynamic shape Reduce water friction

1

1

1

1

1

1

1

1

1

1

1,1

1,1

1,1

1,1

1,1

TOTAL 20

SECTION C 11 (a)

(b)

(c)

(d) i)

ii)

Degree of hotness of an object

1. Put the thermometer in melting ice, mark the lower part of mercury

thread, l0

2. Place the same thermometer in the boiling water, mark the top part

of the mercury thread, l100

3. Divide the length between the two marks inti 100 equal divisions

4. Each division is now equal to 1ºC

Characteristics Reasons

Specific heat capacity is low Faster to get hot

Melting point is high Does not melt easily

Good conductor of heat Heat can be gained and lost easily

Rate of expansion is moderate The shape of the fin unchanged

The most suitable is P because specific heat capacity is low, melting point

is high, conductor heat is good and rate of expansion is moderate.

Q = mcø

= 0.5 x 450 x 10

= 2250 J

Energy lost = 10 x 2250

= 22500 J

1

1

1

1

1

1

1,1

1,1

1,1

1,1

1,1

1

1

1

1

1

5

TOTAL 20 12 (a)

(b)(i)

(ii)

c i)

(ii)

d)

Reflection

Aspects Characteristics Explanation/Reasons

Type of curvature Convex mirror It forms upright

images/It gives a wide

field of view

Focal length of mirror Short focal length It gives a wide field of

view

Diameter of mirror Large diameter, bigger

radius

It will provide a bigger

view of area being

seen

Location of mirror Top corner of the wall It will provides a

bigger area of view

The most suitable is Q because it is made of convex mirror, it has short

focal length, large diameter and located at the top corner of the wall.

Draw arrow OP (1)

Draw line CPS (1)

Draw line FS (1)

Draw arrow IS (1)

Make up mirror, reflectors of torchers and head lamps, dentist mirror ( any

two of the answers)

Given, radius of curvature = 20 cm, so F = 10 cm

To form image of same size of object, object must be placed at point C.

Therefore, x = 10 - 4 = 6 cm

1

1,1

1,1

1,1

1,1

1,1

4

1,1

1

1

1

TOTAL 20

O O

S O

O

I

O

S

P

Nama: ……………………………………. Tingkatan: ………………… Fizik Kertas 3 2010

1 1/2 jam


TINGKATAN 4

FIZIK

Kertas 3

Satu jam 30 minit

JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU

1. Kertas soalan ini adalah dalam dwibahasa. 2. Soalan dalam bahasa Inggeris mendahului

soalan yang sepadan dalam Bahasa Melayu. 3. Calon dibenarkan menjawab keseluruhan atau

sebahagian soalan sama ada dalam bahasa Inggeris atau bahasa Melayu.

Kertas soalan ini mengandungi 14 halaman bercetak

Untuk kegunaan Pemeriksa

Bahagian No. Markah Penuh

Markah Diperolehi

A

1

16

2

12

B

3

12

4

12

Jumlah

4531/3 SULIT

2

Section A Bahagian A

[ 28 marks ] [28 markah]

Answer all questions in this section Jawab semua soalan dalam bahagian ini

The time suggested to complete this section is 60 minutes Masa yang dicadangkan untuk menjawab bahagian ini ialah 60 minit

1. A student carries out an experiment to investigate the relationship between the

extension of spring,x, and weight of load,w. Diagram 1.1 shows the arrangement of the

apparatus for the experiment.

Seorang murid menjalankan satu eksperimen untuk mengkaji hubungan antara

pemanjangan spring, x, dengan berat pemberat, w. Rajah 1.1 menunjukkan susunan

radas untuk eksperimen tersebut.

Diagram 1.1 Rajah 1.1

At the beginning of the experiment there is no load. The initial length of the spring is, lo, 10.0 cm. A load of 30 N is used and the reading is recorded.The procedures are repeated with different loads of weight,w, equal to 40 N, 50 N, 60 N and 70 N. The actual corresponding readings are shown in Diagrams 1.2, 1.3, 1.4, 1.5 and 1.6.

Spring digantung tanpa pemberat pada permulaan eksperimen. Panjang spring asal,

lo, 10.0 cm. Pemberat 30 N digantung pada spring dan bacaan diambil. Prosedur

diulangi dengan pemberat yang mempunyai berat yang berbeza, w, iaitu 40 N, 50 N, 60

N dan 70 N. Bacaan penunjuk pada spring yang sepadan ditunjukkan pada Rajah 1.2,

1.3, 1.4, 1.5 dan 1.6.

0 c

m

100

cm

4531/3 SULIT

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45.5 cm

58.5 cm

70.5 cm

Weight of slotted weight 30 N Berat pemberat ialah 30 N l1 = …………………… cm






4531/3 SULIT

4

82.5 cm

94.5 cm

Weight of slotted weight 60 N Berat pemberat ialah 60 N l4= …………………… cm

Weight of slotted weight 70 N Berat pemberat ialah 70 N l5= …………………… cm



4531/3 SULIT

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(a) For the experiment described on page 2, identify: Bagi eksperimen yang diterangkan di halaman 2, kenal pasti:

(i) The manipulated variable

Pembolehubah dimanipulasikan …………………………………………………………………………………………… [1 mark] [1 markah]

(ii) The responding variable

Pembolehubah bergerak balas

………………………………………………………………………………………….

[1 mark] [1 markah]

(iii) The constant variable Pembolehubah dimalarkan

………………………………………………………………………………………….…

[1 mark] [1 markah]

(b) Based on Diagrams 1.2, 1.3, 1.4, 1.5 and 1.6 on page 4 and page 5: Berdasarkan Rajah 1.2, 1.3, 1.4, 1.5 dan 1.6 di halaman 4 dan 5:

(i) Record the reading of each length of spring,l, in the spaces provided on page 3

and page 4 respectively. Catatkan bacaan panjang spring, l, dalam ruang yang disediakan di halaman 3 dan 4. [2 marks] [2 markah]

1

1) (a) (i)

1) (a) (ii)

1) (a) (iii)

1

1

For

examiner’s

use

2

1) (b) (i)

4531/3 SULIT

6

( ii ) By using the formula x = l - lo, calculate the values of x for each of the extension of spring. Dengan menggunakan formula x = l – lo, hitungkan nilai-nilai x bagi setiap pemanjangan spring.

[2 marks] [2 markah] ( iii ) Tabulate your results for l and x for all values of w, in the space below. Jadualkan keputusan anda bagi l dan x untuk semua nilai w, pada ruang di bawah.

[3 marks] [3 markah] ( c ) On the graph paper on page 7, plot a graph of x against w .

Pada kertas graf di halaman 7, lukis graph x melawan w.

[5 marks] [5 markah]

( d ) Based on your graph in1( c ), state the relationship between x and w.

Berdasarkan graf anda di1( c ), nyatakan hubungan antara x dan w. ………………………………………………………………………………………

[1 mark] [1 markah]

2

1) (b) (ii)

1) (b) (iii)

1) (c)

3

5

For

examiner’s

use

1

1) (d)

16

4531/3 SULIT

7

Graph of x against W Graf x melawan W

4531/3 SULIT

8

2.

Figure 2 Rajah 2

4531/3 SULIT

9

A student carried out an experiment to investigate the relationship between the pressure , P ,and volume , V , of a fixed mass of gas at constant temperature. The results of the experiment is shown in a graph of 1/V against P shown in Figure 2

Seorang murid menjalankan satu ekperimen untuk mengkaji hubungan

antara tekanan,P dan isipadu,V bagi jisim tetap gas pada suhu malar. Keputusan eksperimen itu ditunjukkan oleh graf 1/V melawan P pada Rajah 2

Based on the the graph 2

Berdasarkan graf pada rajah 2

(a) State the relationship between P and V Nyatakan hubungan antara P dan V

……………………………………………………………………………

[1 mark] [1 markah]

(b) The relationship between P and V is given by the equation;

P V = k where k is the gas constant. Hubungan antara P dan V diberi oleh formula; PV = k dimana k ialah pemalar gas

(i) Calculate the gradient , m , of the graph. Show on the graph how you determine the gradient. Hitungkan kecerunan, m bagi graf Tunjukkan pada graf itu bagaimana anda menghitung m

[3 marks] [3markah]

2) (a)

2) (b) (i)

For

examiner’s

use

1

3

4531/3 SULIT

10

(ii) By using the value of gradient, determine the value of the gas constant , k. m = 1 k Dengan menggunakan kecerunan, tentukan nilai pemalar gas, k. m = 1 k


(iii) By using the value of k, determine the value of V when P = 20.0 N cm2 Dengan menggunakan nilai k, tentukan nilai V apabila P = 20.0 N cm2


(c) Determine the value of V, when the pressure P = 12 N cm -2.

Show on the graph how you determine the value of V Tentukan nilai V, apabila tekanan P = 12 N cm -2.

Tunjukkan pada graf itu bagaimana anda menghitung V


(d) State one precaution to get an accurate result. Nyatakan satu langkah berjaga-jaga yang boleh diambil untuk mendapat keputusan yang tepat.

……………………………………………………………………………

[1 mark] [1 markah]

2) (b) (ii)

2) (c)

2) (d)

For

examiner’s

use

2

3

1

2) (b) (iii)

2

12

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Section B [12 marks/markah]

Answer one question only.

Jawab mana-mana satu soalan

3 Diagram 3.1 shows a car pulling a heavily packed trailer. The trailer is attached to the car with a locking mechanism. The car’s engine is exerting a constant force that causes the car and the trailer to accelerate together. Diagram 3.2 shows what happens when the locking mechanism fails and the trailer is dislodged. The car lurches forward with an increased acceleration on its own.

Rajah 3.1 menunjukkan sebuah kereta sedang menarik sebuah trailer yang penuh muatan. Suatu mekanisma kunci menghubungkan kereta dengan trailer. Enjin kereta mengenakan satu daya yang tetap menyebabkan kereta dan trailer mengalami pecutan yang sama.

Diagram 3.1 / Rajah 3.1

Diagram 3.2/Rajah3.2

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Based on the effect onto the car’s acceleration; Berdasarkan kesan ke atas pecutan kereta:

(a) make an inference. buat satu inferens

1mark] [1markah]

(b) state an appropriate hypothesis that could be investigated nyatakan satu hipotesis yang sesuai yang boleh disiasat.

[1mark] [1markah]

(c) With the use of apparatus such as ticker timer, trolley and other suitable apparatus, describe one experiment to investigate the hypothesis state in 4(b) Dengan menggunakan radas seperti jangka masa detik, troli dan lain-lain radas, terangkan satu eksperimen untuk menyiasat hipotesis yang dinyatakan di 3(b)

In your description, state clearly the following : Dalam penerangan anda, jelaskan perkara berikut:

(i) aim of the experiment, tujuan eksperimen,

(ii) variables in the experiment, pembolehubah yang terlibat dalam eksperimen, (iii) list of apparatus and materials, senarai radas dan bahan,

(iv) arrangement of the apparatus, susunan radas,

(v) the procedure of the experiment, including the method of

controlling the manipulated variable and the method of measuring the responding variable, prosedur eksperimen termasuk kaedah mengawal pembolehubah dimanipulasi dan kaedah mengukur pembolehubah bergerak balas,

(vi) the way you would tabulate the data, and cara bagaimana anda akan menjadualkan data, dan

(vii) the way you would analyse the data. cara bagaimana anda akan menganalisis data.


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4 Figure 4.1 and figure 4.2 below shows different shapes of shoe worn by the same lady on the same surface of the road. Observe the pressure exerted act on the lady. Rajah 4.1 dan 4.2 di bawah menunjukkan bentuk kasut yang berbeza yang dipakai oleh seorang perempuan yang sama Perhatikan tekanan yang dikenakan ke atas perempuan itu

Based on the information and observations: Berdasarkan maklumat dan pemerhatian tersebut :

Figure 4.1 Figure 4.2

(a) make an inference. buat satu inferens.

1mark] [1markah]

(b) State an appropriate hypothesis that could be investigated nyatakan satu hipotesis yang sesuai yang boleh disiasat

1mark] [1markah]

(c) With the use of apparatus such as plasticine, weights (wooden block) and other apparatus, describe one experiment to investigate the hypothesis state in 4(b) Dengan menggunakan radas seperti plastisin, pemberat (blok kayu) dan lainlain radas, terangkan satu eksperimen untuk menyiasat hipotesis yang dinyatakan di 4(b)

In your description, state clearly the following : Dalam penerangan anda, jelaskan perkara berikut:

(i) aim of the experiment,

tujuan eksperimen,

(ii) variables in the experiment,

pembolehubah yang terlibat dalam eksperimen,

(iii) list of apparatus and materials, senarai radas dan bahan,

(iv) arrangement of the apparatus,

susunan radas,

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(v) the procedure of the experiment, including the method of controlling the manipulated variable and the method of measuring the responding variable,

prosedur eksperimen termasuk kaedah mengawal pembolehubah dimanipulasi dan kaedah mengukur pembolehubah bergerak balas,

(vi) the way you would tabulate the data, and

cara bagaimana anda akan menjadualkan data, dan

(vii) the way you would analyse the data.

cara bagaimana anda akan menganalisis data.


-END OF QUESTION PAPER- KERTAS SOALAN TAMAT

SKEMA JAWAPAN KERTAS 3 PEPERIKSAAN AKHIR TAHUN 2010 TINGKATAN EMPAT

Section A

Question Mark Scheme Sub mark

Total mark

1 (a) (i)

Able to state the manipulate variable Weight / W // mass, m // Force, F

1

(ii) Able to state the responding variable Extension of spring/ x, // final reading of spring

1

(iii) Able to state the constant variable Diameter of spring/ initial length of spring/lo, type of spring

1

(b) (i) Able to state of the value of l

l1 = 46.0 cm l2 = 59.0 cm l3 = 71.0 cm l4 = 83.0 cm l5 = 95.0 cm

3 to 4 correct -> 1 mark All correct -> 2 marks

2

(ii) Able to state of the value of x

x1 = 36.0 cm x2 = 49.0 cm x3 = 61.0 cm x4 = 73.0 cm x5 = 85.0 cm

3 to 4 correct -> 1 mark All correct -> 2 marks

2

(iii) Able to tabulate W, l and x

Tick () based on the following aspect A – Quantities l, x and W shown in heading B – Unit cm , cm and N shown in heading C – All values for l and x consistent

l/cm x/cm W/N

46.0 36.0 30.0

59.0 49.0 40.0

71.0 61.0 50.0

83.0 73.0 60.0

95.0 85.0 70.0

1 1 1

(c) Able to draw a complete graph of W and x

Tick () based on the following aspects: A – Show x on Y axis and W on the X axis B – State the units of the variables correctly C – Both axis are marked with uniform scale

2

D – All five points are plotted E – Best straight line is drawn F – Show the minimum size of graph at least 5 x 4 (2 cm x 2 cm) square (counted from the origin until the furthest point)

Number of Score

7 5

5 – 6 4

3 – 4 3

2 2

1 1

(d) Able to state the correct relationship between x and W x is directly proportional to W

x W

TOTAL 16

2(a) Able to state the relationship between P and V Inversely proportional

1

(b)(i) Able to calculate the gradient, m - Draw the sufficiently large triangle (4x4) - Correct substitution (Follow the candidate’s triangle) = 0.012 12 = 1 x10-3 N-1cm-1 (Answer with the correct unit)

1 1

1

(ii) Able to calculate the value of k, - Correct substitution - 1

1 x10-3

= 1 x103 N cm (Answer with the correct unit) (Answer without unit 0 mark)

1

1

(iii) Able to calculate the value of V, - Correct substitution V = 1 x10-3

20 = 50 cm3

1

1

(c) Able to read the value of 1/V - show the vertically line corresponding to P / horizontal line - Correct substitution 1 = 0.012 V - V = 83.3 cm3

1 1

1

(d) Able to state one correct precaution - Make sure the cylinder is air tight. - Make sure the position of eye must be perpendicular to the

reading scale of measurement. - Take the reading twice and find the average.

( Any one answer can acceptable)

1

TOTAL 12

3

Section B

Question Sub mark

Mark Scheme Total mark

3(a) 1 Making the right inference Acceleration depends on mass

(b) 1 Building an appropriate hypothesis The greater the mass, the greater the acceleration.

(c)(i) 1 Stating the aim of the experiment To study the relationship between the acceleration and mass of an object under constant force

(ii) 1

1

Stating the correct variables Manipulated variable : Mass, m Responding variable : Acceleration, a Fixed variable : Force

(iii) 1 List of appropriate apparatus and material Ruler, A.C. power supply, runway, ticker tape, ticker timer and elastic cord

(iv) 1

Describing set up of the apparatus

v)

1

1 1

Stating the procedure of the experiment Set up a friction compensated track. Attach a ticker tape to the trolley and pass the tape through the ticker timer. Pull the 1 kg trolley down the runway with the elastic cord kept stretched by the same amount of force. Calculate acceleration by analysing the ticker tape. Repeat by adding weights to the trolley so that the mass is 1.5 kg, 2.0 kg, 2.5 kg and 3.0 kg Record data Plot an a against m graph // Plot an a against 1/m graph .

vi) 1 Tabulating data Show table with m and a as headings

Mass /kg Acceleration/ms-2

1.0

1.5

2.0

2.5

3.0

viii) 1 Analysing data a a or m 1/m

**This mark may be given at the last line for procedure.

TOTAL 12

a.c power

supply

Ticker tape Elastic cord

Ticker timer Trolley

Friction compensated track

4

Question Sub mark

Mark Scheme

4(a) 1 Making the right inference The pressure exerted on shoe depends on its surface area contact

(b) 1 Building an appropriate hypothesis The larger surface area of contact, the greater the pressure exerted

(c)(i) 1 Stating the aim of the experiment To study the relationship between surface area of contact and pressure

(ii) 1

1

Stating the correct variables Manipulated variable : surface area of contact, A Responding variable : Pressure, P / depth of depression Fixed variable : Force/weight

(iii) 1 List of appropriate apparatus and material Plasticine, wooden block 50g with different surface

area (2cm², 4cm², 6cm², 8cm², and 10cm²), meter rule

(iv) 1

Describing set up of the apparatus

v)

1

1 1

Stating the procedure of the experiment 1. Plasticine with constant thickness is placed on

the table 2. Place a wooden block with surface area is 2cm² 3. A wooden block of 50g is released from a height

of 20.0 cm onto the plasticine. 4. Remove the wooden block and measure the

depth, d of the depression on the plasticine using meter rule.

5. Repeat the steps by using wooden block with surface area 4cm², 6cm², 8cm², and 10cm²

vi) 1 Tabulating data

Surface area/ cm² Depth of depression/ cm

2.0

4.0

6.0

8.0

10.0

viii) 1 Analysing data d/cm A/ cm²

**This mark may be given at the last line for procedure.

TOTAL 12

Wooden

block Meter rule

Plasticine

Download - fizik k123 f4 2010

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