fizik f4 123 akt 2011

SULIT 4531/1

4531/1 [Lihat sebelah]

4531/1 Fizik Kertas 1 Oktober 1 ¼ jam

JABATAN PELAJARAN NEGERI MELAKA

PEPERIKSAAN AKHIR TAHUN

TINGKATAN EMPAT TAHUN 2011

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 28 halaman bercetak

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SULIT [Lihat sebelah]

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

1. a = t

uv

2. v2 = u2 + as 3. s = ut + at2 4. Momentum = mv 5. F = ma

6. Kinetic energy = 2

1mv2

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 of the following is a base unit? Manakah di antara berikut adalah unit asas?

A joule B newton C ampere D kilometer

2. The power generated by a power station is 250 MW. This power is the same as Kuasa yang dijanakan oleh sebuah stesen janakuasa ialah 250 MW. Kuasa ini bersamaan dengan

A 2.50 X 103 W B 2.50 X 106 W C 2.50 X 108 W D 2.50 X 109 W

3.

The micrometer screw gauge reading in diagram 1 is Bacaan tolok skru mikrometer dalam rajah 1 ialah

A 2.45 cm B 2.95 cm C 2.45 mm D 2.95 mm

4. A, B, C and D show the shooting marks on target. Which marks are most accurate? A, B, C dan D merupakan kesan tembakan pada sebuah papan sasar Manakah menunjukkan kesan yang jitu?

Diagram 1 / Rajah 1

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5. A shop-keeper places two identical blocks of cheese on a set of scales as shown in

diagram 2 and notices that their combined mass is 240 g. Each block measures 2.0 cm x 5.0 cm x 10.0 cm. Seorang pekedai meletakkan dua keping keju yang serupa di atas penimbang dalam rajah 2 dan mendapati bahawa jumlah jisim kedua-duanya ialah 240 g. Setiap keping keju berukuran 2.0 cm x 5.0 cm x 10.0 cm.

What is the density of the cheese ? Apakah ketumpatan bagi setiap blok keju?

A 0.42 g / cm3 B 0.83 g / cm3 C 1.2 g / cm3 D 2.4 g / cm3

6. A student carries out an experiment where the variables are as follows: Manipulated variable : P Responding variable : Q Constant variable : R Which is the graph that should be drawn? Seorang pelajar menjalankan suatu eksperimen dengan pembolehubah seperti berikut: Pembolehubah dimanipulasikan : P

Diagram 2 / Rajah 2

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Pembolehubah bergerak balas : Q Pembolehubah dimalarkan : R Graf manakah yang patut dilukis?

7. Which physical quantity is equal to

𝑑𝑖𝑠𝑝𝑙𝑎𝑐𝑒𝑚𝑒𝑛𝑡

𝑡𝑖𝑚𝑒 ?

Kuantiti fizik manakah yang sama dengan 𝑠𝑒𝑠𝑎𝑟𝑎𝑛

𝑚𝑎𝑠𝑎?

A speed Laju

B Velocity Halaju

C Distance Jarak

D Acceleration Pecutan

8.

Lubricating oil is dropping at a constant rate from a moving car. The oil trail left behind is as shown in Diagram 3, which of the following statements correctly describe the motion of the car? Titisan minyak pelincir jatuh keluar dengan kadar tetap daripada sebuah kereta yang sedang

Diagram 3/ Rajah 3

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bergerak. Jika kesan minyak adalah seperti ditunjukkan dalam Rajah 3, manakah di antara pernyataan berikut menghuraikan gerakan keteta itu?

A It is moving with constant velocity Ia sedang bergerak dengan halaju sekata

B It is moving with increasing velocity Ia bergerakan dengan pecutan yang semakin meningkat

C It is moving with decreasing velocity Ia bergerakan dengan laju yang semakin berkurang

D It moved with constant velocity, then with decreasing velocity Ia bergerak dengan halaju sekata, kemudian lajunya berkurang

9. Diagram 4 shows two different heavy objects fall at different height.

Rajah 4 menunjukkan dua objek yang berbeza berat dijatuhkan pada ketinggian yang berbeza.

Which physical quantity is the same for both balls? Kuantiti fizik yang manakah yang sama untuk kedua-dua bola?

A Time of travel

Masa perjalanan

B The velocity when reach the ground Halaju selepas menyentuh tanah

C Acceleration Pecutan

D Increase in velocity Pertambahan halaju

Diagram 4/ Rajah 4

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10. Diagram 5 shows an astronaut walking on the moon. What can you say about his inertia? Rajah 5 menunjukkan seorang angkasawan berjalan di permukaan bulan. Apakah yang dapat anda katakan mengenai inertianya?.

A increases bertambah

B decrease berkurang

C unchanged Tidak berubah

11. Table 1 shows the mass and velocity of three planets. Jadual 1 menunjukkan jisim dan halaju tiga buah planet

Which planet has the smallest momentum when it’s moving? Planet manakah mempunyai momentum paling kecil apabila ia bergerak? A Earth B Jupiter C Uranus

Diagram 5 / Rajah 5

Table 1 / Jadual 1

http://en.wikipedia.org/wiki/File:Aldrin_Apollo_11_original.jpg

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12. Diagram 6 shows two forces are perpendicular to each other. Rajah 6 menunjukkan dua daya yang bertindak secara serenjang antara satu sama lain.

What is the angle between the resultant force and force of 9 N? Berapakah sudut di antara daya paduan dengan daya 9N?

A 36.90

B 45.00 C 48.60 D 53.10

13. Which object moves with the largest acceleration? Objek yang manakah bergerak dengan pecutan paling besar?

Diagram 6 / Rajah 6

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14. Diagram 7 shows an aeroplane flying horizontally with increasing velocity. Rajah 7 menunjukkan sebuah kapal terbang sedang terbang secara mendatar dengan halaju yang bertambah

Which of the following statement is correct? Antara pernyataan berikut, yang manakah betul?

A Weight > Lift Berat > Tujah ke atas B Lift > Weight Tujah > Berat C Drag = Thrust Rintangan udara = Tujah ke depan D Thrust > Drag Tujah ke depan > Rintangan udara

15. Diagram 8 shows a load of weight, W is kept in equilibrium by two strings.

Rajah 8 menunjukkan satu beban mempunyai berat, W berada dalam keadaan keseimbangan.

Which of the vector diagrams represent the forces T1, T2 and W acting on the load? Rajah vektor yang manakah mewakili T1, T2 dan W yang bertindak ke atas beban tersebut?

Diagram 8 / Rajah 8

Diagram / Rajah 7

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16. Diagram 9 shows a softball player moves his hand backwards while catching a fast

moving ball. Rajah 9 menunjukkan seorang pemain bola lisut menggerakkan tangannya ke belakang semasa menangkap bola yang sedang bergerak.

The movement of his hand is to Pergerakan tangannya adalah untuk

A increase the time impact menambahkan masa sentuhan

B increase the impulsive force menambahan daya impuls

C decrease the energy of the ball mengurangkan tenaga bola

D increase the impulse of the ball menambahkan impuls pada bola

Diagram 9 / Rajah 9

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17.

Diagram 10 shows a 150 g ball is moving at a speed of 40 m s-1 when it was hit by a baseball bat. The ball rebounds at a speed of 50 m s-1 and it’s time of contact with the bat is 0.04 s. Rajah 10 menunjukkan sebiji bola berjisim 150 g sedang bergerak dengan kelajuan 40 m s-1 bila dipukul dengan kayu pemukul bola lisut. Bola melantun pada kelajuan 50 m s-1 dan masa sentuhan dengan dengan kayu pemukul ialah 0.04 s.

What is the impulsive force on the ball? Berapakah daya impuls yang bertindak ke atas bola?.

A 3.7 N B 33.7 N C 337.5 N D 3750.0 N

18. Diagram 11 shows a lady is pulling a luggage bag. Rajah 11 menunjukkan seorang wanita sedang menarik bagasi.

If F= 20 N, s= 50 m and = 600, what is the work done by the lady?. Jika F = 20 N, s=50 m dan = 600, berapakah kerja yang dilakukan oleh perempuan itu?.

Diagram 10 / Rajah 10


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A 500 J B 1000 J C 1200 J D 3000 J

19. Which of the following is TRUE regarding the Principle of Conservation of Energy? Manakah antara berikut yang 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 tetap

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

20. Diagram 12 shows a wooden block and a weight connected by an elastic string

through a frictionless pulley. Rajah 12 menunjukkan sebuah blok kayu dan sebuah pemberat disambungkan oleh satu tali tak kenyalmelalui sebuah takal licin.

When the weight is released, the energy change that happens in the system is Apabila pemberat dilepaskan, perubahan tenaga yang berlaku dalam sistem itu ialah

A potential energy of the wooden block kinetic energy of the weight Tenaga keupayaan blok kayu tenaga kinetik pemberat

B potential energy of the weight kinetik energy of the wooden block Tenaga keupayaan pemberat tenaga kinetik blok kayu C potential energy of the weight kinetik energy of the weight and wooden block Tenaga keupayaan pemberat tenaga kinetik pemberat dan blok kayu

D potential energy of the weight and wooden block kinetic energy of the wooden block Tenaga keupayaan pemberat dan blok kayu tenaga kinetik blok kayu


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21. Diagram 13 shows a lift is powered by an electric motor. The lift and its passengers have a combined mass of 500 kg and the lift moves upward with an average speed of 4 m s-1

Rajah 13 menunjukkan satu lif yang digerakkan oleh sebuah motor elektrik. Lif dan penumpangnya mempunyai jumlah jisim 500 kg dan lif bergerak ke atas padakelajuan min(purata) 4 m s-1

What is the output power of the motor? Berapakah kuasa output motor?

A 125 W B 200 W C 1250 W D 2000 W E 20000 W

22. Assuming all the springs are identical, which arrangement will produce the largest total extension? Dengan mengandaikan semua spring adalah serupa, susunan yang manakah akan menghasilkan jumlah pemanjangan yang terbesar?

A

B


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C

D

23. Diagram 14 shows a graph of force against extension for an elastic string. Rajah 14 menunjukkan graf daya melawan pemanjangan bagi seutas tali kenyal.

The elastic potential energy of the string is represented by the Tenaga keupayaan kenyal tali tersebut diwakili oleh

A area OXY luas OXY B area OYZ luas OYZ C area OXYZ luas OXYZ D gradient of OY kecerunan bagi OY


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24. Which shoe would exert the greatest pressure on the ground when worn by the same lady? Kasut yang manakah akan mengenakan tekanan paling tinggi ke atas lantai jika dipakai oleh wanita yang sama?

A

B

C

D

25. Diagram 15.1 and Diagram 15.2 show two water containers. Rajah 15.1 dan Rajah 15.2 menunjukkan dua bekas air.

Why does the water in Diagram 15.1 flow out at a slower rate than the water in Diagram 15.2? Mengapakah air dalam Rajah 15.1 keluar pada kadar yang lebih rendah berbanding air dalam Rajah 15.2?

A The pressure at Y is larger than the pressure at X. Tekanan di Y lebih besar dari tekanan di X.. B The pressure at X is larger than the pressure at Y. Tekanan di X lebih besar dari tekanan di Y. C The pressure at X and Y are equal. Tekanan di X dan Y adalah sama.

Diagram 15.1 / Rajah 15.1

Diagram 15.2/ Rajah 15.2

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26. Diagram 16 shows a cylinder containing water.

Rajah 16 menunjukkan sebuah silinder yang mengandungi air.

If the pressure at point P is 12 000 N m-2, the height of h is [the density of the water = 1000 kg m-3] Jika tekanan pada titik P adalah 12 000 N m-2, ketinggian h ialah [ketumpatan air = 1000 kg m-3]

A 0.8 m B 1.0 m C 1.2 m D 2.0 m

27. 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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28. Diagram 17 shows a little girl is drinking with a straw. Rajah 17 menunjukkan seorang budak perempuan sedang minum dengan menggunakan penyedut minuman

The water can flow into the straw because Air boleh mengalir melalui penyedut minuman itu disebabkan

A there is no atmospheric pressure on the straw . Tiada tekanan atmosfera ke atas penyedut minuman

B the atmospheric pressure is equal to the pressure inside the straw. Tekanan atmosfera sama dengan tekanan dalam penyedut minuman

C the atmospheric pressure is less than the pressure inside the straw. Tekanan atmosfera lebih rendah daripada tekanan dalam penyedut minuman D the atmospheric pressure is more than the pressure inside the straw. Tekanan atmosfera lebih tinggi daripada tekanan dalam penyedut minuman

29. Diagram 18 shows a manometer used to measure the gas pressure in a container. Rajah 18 menunjukkan manometer digunakan untuk mengukur tekanan gas dalam satu bekas.

What is the pressure of the gas? (Atmospheric pressure = 75 cm Hg) Berapakah tekanan gas itu? (Tekanan atmosfera = 75 cm Hg)

A 5 cm Hg B 70 cm Hg C 75 cm Hg D 80 cm Hg



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30. Why the atmospheric pressure at higher altitude is lower? Mengapa tekanan atmosfera semakin berkurang pada tempat yang semakin tinggi altitudnya ? A Temperature is decreasing Suhu semakin berkurang

B The layer of air is thinner Lapisan udara semakin nipis

C Density of air increasing Ketumpatan udara meningkat.

D The volume of air does not change Isipadu udara tidak berubah

31. Which device is an application of Pascal’s principle?

Alat yang manakah mengaplikasikan Prinsip Pascal?

32.

Which of the following is true about hydraulic pump in diagram 19? Antara berikut, yang manakah benar tentang pam hidraulik dalam rajah 19?

A Weight of load,W equivalent to force applied,F. Berat beban, W sama dengan daya yang digunakan, F. B The most suitable type of liquid used is water. Jenis cecair yang paling sesuai digunakan ialah air. C Pressure on Piston A is bigger than pressure on Piston B. Tekanan pada omboh A lebih besar daripada tekanan pada omboh B.

D The bigger the surface area of piston A, the bigger the weight,W can be put on. Semakin bertambah luas permukaan omboh A, semakin bertambah berat beban W dapat diletakkan.


A

D C

B

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33. In the diagram 20 below, which point in the tube has the highest air pressure? Dalam rajah 20 di bawah, yang mana satu titik dalam tiub itu mempunyai tekanan udara yang paling tinggi?

34. Diagram 21 shows the flow of air in an underground tunnel. Rajah 21 menunjukkan aliran udara dalam terowong bawah tanah

The flow of air through the tunnel from X to Y can be explained using Aliran udara melalui terowong bawah tanah dari X ke Y boleh diterangkan dengan

A Pascal’s principle

Prinsip Pascal

B Bernoulli’s principle Prinsip Bernoulli

C Archimedes’ principle Prinsip Archimedes

D Principle of equilibrium Prinsip keseimbangan



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35. Diagram 22 shows a box on a raft floating in a river. Rajah 22 menunjukkan sebuah kotak di atas sebuah rakit yang terapung di sungai.

Which statement is true about the weight of water displaced, W3? Pernyataan yang manakah benar tentang berat air tersesar, W3?

A W3 > W1 + W2 B W3 = W1 + W2 C W3 < W1 + W2 D W3 = W2 - W1

36. Diagram 23 shows a ship full with load floating on the surface of sea water. Rajah 23 menunjukkan kapal yang penuh dengan beban terapung di atas permukaan air laut.

If the water displaced by the ship is 350 m3, what is the buoyant force acted on the ship? Density of se water = 1030 kg m-3] Jika air yang tersesar oleh kapal ialah 350 m3, berapakah daya tujah yang bertindak ke atas kapal? [Ketumpatan air laut = 1030 kg m-3]

A 3.6 x 105 N B 3.6 x 10 6 N C 3.6 x 10 7N D 3.6 x 10 8 N



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37. Diagram 24 shows an oven which is used to bake cakes. After 40 minutes, the cakes reach thermal equilibrium. Rajah 24 menunjukkan sebuah ketuhar digunakan untuk membakar kek. Selepas 40 minit, kek itu mencapai keseimbangan termal.

When is thermal equilibrium reached? Bilakah keseimbangan terma dicapai?

A When the oven has reached its maximum temperature. Bila ketuhar telah mencapai suhu maksimum.

B When all the heat from the oven has transferred to the cake. Bila semua haba dari ketuhar telah dipindahkan kepada kek.

C When the temperature of the cake is equal to the temperature of the oven. Bila suhu kek sama dengan suhu ketuhar.

D When the net heat transfer between the cake and oven is equal. Bila pemindahan haba bersih antara kek dan ketuhar adalah sama.

38. Diagram 25 shows a mercury thermometer which has not been calibrated. The length

of mercury column in the thermometer is 5 cm at 0 oC and 50 cm at 100 oC. Rajah 25 menunjukkan sebuah termometer merkuri yang belum ditentukur. Panjang turus merkuri pada thermometer ialah 5 cm pada 0 0C dan 50 cm pada 100 0C.




http://dsclick.infospace.com/ClickHandler.ashx?ru=http://www.flourgirlcakery.com/images/cake_images/oven.jpg&coi=372380&cop=main-title&c=speedbit.2.aff08&ap=9&npp=9&p=0&pp=0&pvaid=405a5723d3ef498fb02c211a6f10611c&ep=9&euip=60.53.238.148&app=1&hash=6C2B21BC215AF58A5ECD17D22AFE124B

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When the thermometer is placed in hot water, the length of mercury column is 35 cm. What is the temperature of hot water. Apabila termometer itu dimasukkan ke dalam air panas, panjang turus merkuri menjadi 35 cm. Berapakah suhu air panas?

A 35.0 0C

B 40.0 0C C 66.7 0C D 70.0 0C

39. Diagram 26 shows a little oil is added into the hole which holds the thermometer when

measuring the temperature of an aluminium block. What is the use of the oil? Rajah 26 menunjukkan, sedikit minyak dimasukkan ke dalam lubang yang menampung termometer apabila mengukur suhu satu bongkah aluminium. Apakah kegunaan minyak tersebut?

A. to prevent rust untuk mengelakkan karat

B. to lubricate the hole untuk melicinkan lubang itu

C. to provide better thermal contact untuk sentuhan terma yang baik

D. to insulate the thermometer untuk menebatkan termometer itu


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40. Diagram 27 shows a metal cylinder of mass 5.0 kg and specific heat capacity 400 J kg-

1oC-1

Rajah 27 menunjukkan satu silinder logam berjisim 5.0 kg dan muatan haba tentu 400 J kg-1

oC-1

What is the temperature rise of cylinder 10 seconds after the heater is switched on? Berapakah kenaikan suhu silinder 10 saat selepas suisnya dihidupkan?

A 0.20 oC B 0.80 oC C 1.25 oC D 5.00 oC

41. Between the materials A, B, C and D in the table above, which will experience the largest increase in temperature if supplied the same quantity of heat? Antara bahan A, B, C dan D di atas, yang manakah mengalami kenaikan suhu yang paling banyak jika dibekalkan kuantiti haba yang sama?

Material Mass/kg Specific heat capacity/ J kg-1oC-1

A 1.5 400

B 2.0 600

C 2.5 200

D 3.0 150

42. Diagram 28 shows a melting curve for a solid with mass 600 g, and heated by electrical heater of 2.0 kW. What time will be use to calculate the specific latent heat of fusion of the solid. Rajah 28 menunjukkan lengkung pemanasan bagi suatu pepejal dengan jisism 600 g, dan dipanaskan dengan pemanas elektrik 2.0 kW. Apakah masa yang akan digunakan untuk mengira muatan haba tentu pelakuran pepejal tersebut.


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A AB B BC C CD D DE

43. Which graph shows the relationship between the volume and absolute temperature of a fixed mass of gas at constant pressure? Graf yang manakah menunjukkan hubungan antara isipadu dan suhu mutlak bagi satu jisim tetap gas pada tekanan malar?

A

B

C

D


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44. Diagram 29 shows a glass tube contains 10 cm length of air column trapped at 27oC. Rajah 29 menunjukkan satu tiub kaca mengandungi 10 cm panjang turus udara yang terperangkap pada suhu 27 oC.

What is the temperature of air trapped when the length of air is 10.5 cm? Berapakah suhu udara yang terperangkap itu bila panjang turus udara menjadi 10.5 cm?

A 28.4 oC B 42.0 oC C 48.0

oC D 52.0 oC

45. The gas in a container with insulated walls is compressed quickly. The temperature of the gas Gas dalam suatu bekas dengan dinding yang bertebat dimampatkan dengan cepat. Suhu gas itu

A. increases bertambah

B. decreases berkurang

C. does not change tidak berubah


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46. The graph in Diagram 30 shows the result of an experiment to investigate how volume varies with temperature for a fixed mass of gas at constant pressure. Graf dalam rajah 30 menunjukkan keputusan suatu eksperimen untuk mengkaji bagaimana isipadu berubah dengan suhu bagi satu gas berjisim tetap pada tekanan tetap.

What is the name given to the temperature at point X? Apakah nama yang diberi kepada suhu pada titik X?

A Zero temperature suhu sifar

B Absolute zero suhu sifar mutlak

C Thermodynamic temperature suhu termodinamik

D Zero volume temperature Suhu pada isipadu sifar

47. Diagram 31 shows a diver releasing air bubbles as he dives.

Rajah 31 menunjukkan seorang penyelam mengeluarkan udara semasa menyelam.



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The size of the air bubbles increases as it reaches the surface. Which law explains the situation above? Saiz udara semakin membesar apabila ia menaik ke permukaan. Hukum yang manakah yang menerangkan situasi di atas?

A Boyle's law / hukum Boyle B Charles' law / hukum Charles C Pressure law / hukum tekanan

48. Diagram 32 shows a candle placed in front of a plane mirror. Rajah 32 menunjukkan sebuah lilin yang diletakkan di hadapan sebuah cermin satah.

Which is the correct position of the image of the candle ? Berdasarkan rajah di atas, di manakah kedudukan yang betul bagi imej lilin tersebut?

49. Diagram 33 shows light traveling from glass to air.

Rajah 33 menunjukkan cahaya merambat dari kaca ke udara.



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The refractive index of glass is Indeks biasan kaca ialah

A sin 𝑠

sin 𝑝

B sin 𝑝

sin 𝑠

C sin 𝑡

sin 𝑞

D sin 𝑞

sin 𝑡

50. Diagram 34 shows a ray of light is directed onto a plane reflector Rajah 34 menunjukkan satu sinar tuju yang ditujukan pada satu pemantul satah

Determine the correct relationship between the angle of incidence, i and the angle of reflection,r. Tentukan hubungan yang betul antara sudut tuju,i dengan sudut pantulan ,r.

A i = r B i > r C i < r D i ≠ r



TINGKATAN EMPAT 2011

JAWAPAN KERTAS 1

1 C 11 A 21 E 31 C 41 D

2 C 12 D 22 A 32 D 42 B

3 D 13 A 23 B 33 C 43 A

4 D 14 D 24 C 34 B 44 B

5 C 15 D 25 A 35 B 45 A

6 D 16 A 26 A 36 B 46 B

7 B 17 C 27 D 37 C 47 A

8 C 18 A 28 D 38 C 48 C

9 C 19 C 29 B 39 C 49 B

10 C 20 C 30 B 40 D 50 A

4531/2 Nama: ........................................ Fizik Kertas 2 Tingkatan: .................... Oktober 2011 ANGKA GILIRAN 2 ½ jam

JABATAN PELAJARAN MELAKA


TINGKATAN EMPAT 2011

FIZIK

Kertas 2 Dua jam tiga puluh minit


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 28 halaman bercetak

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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 16.

r

in

sin

sin

2. v2 = u

2 + 2as 17.

depthapparent

depth realn

3. s = ut + 2

1at

2

ketaradalam

nyatadalam

4. Momentum = mv

18.

f

1

u

1 +

v

1

5. F = ma

19. Linear magnification /

Pembesaran linear, u

vm

6. Kinetic energy / Tenaga Kinetik

= 2

2

1mv

20. v = f

7. Gravitational potential energy /

Tenaga Keupayaan graviti = mgh

21. = D

ax

8. Elastic potential energy /

Tenaga keupayaan kenyal = 2

1Fx

22. Q = It

9. Power, time

energyP

23. E = VQ

Kuasa, masa

tenagaP

24. V = IR

10. = V

m 25. Power / Kuasa, P = IV

11. Pressure / Tekanan, P = A

F 26. g = 10 ms

-2

12. Pressure / Tekanan, P = h g 27. s

p

s

p

V

V

N

N

13. Heat / Haba, Q = mc 28. Efficiency / Kecekapan

14. Heat / Haba, Q = ml = %100PP

SS

VI

VI

15. T

pV = constant / pemalar 29. E = mc

2

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Section A Bahagian A

(60 marks) 60 markah

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

1. Diagram 1.1 shows the reading of a measuring instrument when there is no object on it. Rajah 1.1 menunjukkan bacaan satu alat pengukur apabila tiada objek diletakkan di atasnya.

Diagram 1.2 shows the reading of the measuring instrument when an object is placed on it. Rajah 1.2 menunjukkan bacaan alat pengukur tersebut apabila satu objek diletakkan di atasnya.

Diagram 1.1

Rajah 1.1

Diagram 1.2

Rajah 1.2

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1 (a)

1

a)

Name the physics quantity that can be measured by the measuring instrument in Diagram 1.1. Namakan kuantiti fizik yang boleh diukur oleh alat pengukur pada Rajah 1.1.

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

[1 mark]

1 (b)

1

b)

Name the type of error produced in Diagram 1.1 Namakan jenis ralat yang terhasil dalam Rajah 1.1

...……………………………………………………………………………………

[1 mark]

1 (c)

1

c)

What is the value of error in Diagram 1.1 Berapakah nilai ralat yang terhasil dalam Rajah 1.1

……………………………………………………………………………………...

[1 mark]

1 (d)

1

Total A1

4

d)

What is the actual reading of the physical quantity measured in Diagram 1.2? Berapakah bacaan sebenar kuantiti fizik yang diukur dalam Rajah 1.2?

...……………………………………………………………………………………

[1 mark]

2. Diameter 2.1 shows a stone is weighed in the air using a Newton spring balance. Diagram 2.2 shows a same stone weighed in the water. Rajah 2.1 menunjukkan seketul batu ditimbang di udara menggunakan neraca spring Newton. Rajah 2.2 menunjukkan batu yang sama ditimbang di dalam air.

Diagram 2.1 Diagram 2.2 Rajah 2.1 Rajah 2.2

3.0 N 4.0 N

Object Objek

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2 (a)

1

a)

Name one physics principle involved when the load is fully immersed in

the water.

Namakan satu prinsip fizik yang terlibat apabila beban tenggelam sepenuhnya

di dalam air.

……………………………………………………………………………………

[1 mark]

2 (b)

1

b)

Explain why the reading of balance is less when the load is immersed in

water.

Terangkan mengapa bacaan neraca lebih kecil apabila beban itu tenggelam di

dalam air

……………………………………………………………………………………

[1 mark]

2 (c)

2

c)

Determine the volume of the load. The density of water is 1 000 kg m-3.

Tentukan isipadu beban tersebut. Ketumpatan air ialah 1000 kg m-3.

[2 marks]

2 (d)

1

Total A2

5

d)

Name one physics application in 2(a) in navigation.

Namakan satu aplikasi prinsip fizik di 2(a) dalam bidang pelayaran.

……………………………………………………………………………………

[1 mark]

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3.

Diagram 3 shows a wet towel is placed on the forehead of a boy who has high fever. Rajah 3 menunjukkan tuala yang basah diletakkan di atas dahi seorang budak lelaki yang mengalami demam panas.

Diagram 3 Rajah 3

3 (a)

1

a) What is the meaning of thermal equilibrium? Apakah yang dimaksudkan dengan keseimbangan terma?

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

[1 mark]

3 (b)

2

b)

Explain how a thermal equilibrium is achieved in Diagram 3. Terangkan bagaimana keseimbangan terma tercapai dalam Rajah 3.

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

[2 marks]

3 (c )

2

c)

The mass of water used to wet the towel is 0.3 kg and the specific heat capacity for water is 4 200 J kg-1 oC-1 . The initial temperature of the towel is 30oC and the final temperature is 38oC. Find the amount of heat energy from the boy is removed by the wet towel. Jisim air yang digunakan untuk membasahkan tuala adalah 0.3 kg dan muatan haba tentu air adalah 4 200 J kg-1 oC-1 . Suhu awal tuala adalah 30oC dan suhu akhir adalah 38oC. Hitung jumlah tenaga haba yang telah dibebaskan daripada budak itu oleh tuala basah.

[2 marks]

Wet towel Tuala basah

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3 (d)

1

Total A3

6

d)

What happens to the final temperature if the water used to wet the towel is mixed with ice cubes? Apakah yang berlaku kepada suhu akhir jika air yang digunakan untuk membasahkan tuala dicampurkan dengan ketulan ais?

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

[ 1 mark ]

4. Diagram 4 shows a worker lifting a load of mass 20 kg using a pulley system. The worker applies a force of 220 N to pull the rope down a distance of 0.5 m. The load is raised to a height of 0.5 m. Rajah 4 menunjukkan seorang pekerja mengangkat beban berjisim 20 kg dengan menggunakan sistem takal. Pekerja itu menggunakan daya 220 N untuk menarik tali sejauh 0.5 m. Beban tersebut dinaikkan setinggi 0.5 m.

Diagram 4

Rajah 4

4 (a)

1

a)

What is meant by work? Apakah yang dimaksudkan dengan kerja?

……………………………………………………………………………………

[1 mark]

Mass 20 kg Jisim 20 kg

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4(b)(i)

2

b)

Calculate the work done Hitungkan kerja yang dilakukan

(i) by the worker to pull the rope down a distance of 0.5 m oleh pekerja tersebut untuk menarik tali sejauh 0.5 m

[2 marks]

4 (b)(ii)

2

(ii) on the load to raise it to a height of 0.5 m

ke atas beban untuk menaikkan beban itu setinggi 0.5 m

[ 2 marks]

4 (c)(i)

1

c)

(i) Compare the work done in 4(b)(i) and 4(b)(ii)

Bandingkan kerja yang dilakukan di 4(b)(i) dan 4(b)(ii)

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

[1 mark]

Total A4

7

4 (c)(ii)

1

(ii) State why there is a difference between the work done in 4(b)(i)

and 4(b)(i) Nyatakan mengapa terdapat perbezaan antara kerja yang dilakukan di 4(b)(i) dan 4(b)(ii)

……………………………………………………………………………

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

[1 mark]

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5.

Diagram 5.1 and Diagram 5.2 show two balloons A and B exerted with the same force . Rajah 5.1 dan Rajah 5.2 menunjukkan dua belon A dan B dikenakan daya yang sama.

Diagram 5.1 Diagram 5.2 Rajah 5.1 Rajah 5.2

5 (a)

1

a)

What is meant by pressure? Apakah yang dimaksudkan dengan tekanan?

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

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

[ 1 mark ]

5 (b)(i)

1

5 (b)(ii)

1

b)

Based on Diagram 5.1 and Diagram 5.2, Berdasarkan Rajah 5.1 dan Rajah 5.2

(i) Which balloon will burst easily? Belon manakah yang akan mudah pecah ?

........................................................................................................... [ 1 mark ]

(ii) Compare the pressure exerted to the balloon

Bandingkan tekanan yang dikenakan ke atas belon.

.......................................................................................................... [ 1 mark ]

Finger

Jari

Needle

Jarum

Balloon A

Belon A

Balloon B

Belon B

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5 (b)(iii)

1

(iii) Compare the surface area of finger and needle which in contact

with the balloon. Bandingkan luas permukaan jari dan jarum yang bersentuh pada belon.

........................................................................................................... [ 1 mark ]

5 (b)(iv)

1

(iv) Relate the pressure exerted on the balloon with the surface area. Hubungkaitkan antara tekanan yang dikenakan pada belon dengan luas permukaan.

……………………………...……………………………………………… [ 1 mark ]

5 (b)(v)

1

(v) What happens to the pressure on the balloon if force exerted is increased? Apakah yang akan berlaku kepada tekanan yang dikenakan ke atas belon, jika daya yang dikenakan bertambah ?

........................................................................................................... [ 1 mark ]

5(c)

1

c) State the physics concept involved in Diagram 5.1 and Diagram 5.2. Nyatakan konsep fizik yang terlibat dalam Rajah 5.1 dan Rajah 5.2.

…………………………………………………………………………………… [ 1 mark ]

5(d)

1

d) State one application of physics’ concept in 5 (c) in our daily life Nyatakan satu aplikasi konsep fizik dalam 5 (c) dalam kehidupan seharian kita.

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

[ 1 mark ]

Total A5

8

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6.

Diagram 6.1 shows an airplane maintaining a steady and level flight

under the influence of four forces.

Diagram 6.2 shows an load hanging from the middle of the string. T1

and T2 are tensions of the string and W is the weight of the load. The

dotted line shows the resolved component of the tensions T1 and T2 .

Rajah 6.1 menunjukkan sebuah kapalterbang yang sedang bergerak dengan

penerbangan yang tetap pada aras yang sama di bawah pengaruh empat

daya.

Rajah 6.2 menunjukkan satu beban digantung pada bahagian tengah tali. T1

dan T2 adalah tegangan tali dan W adalah berat beban. Garis putus-putus

menunjukkan komponen leraian daya bagi tegangan T1 and T2.

Diagram 6.1 Rajah 6.1

Diagram 6.2

Rajah 6.2

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6 (a)

1

a)

What is meant by weight? Apakah yang dimaksudkan dengan berat?

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

[ 1 mark }

b) Based on Diagram 6.1 and Diagram 6.2, Berdasarkan Rajah 6.1dan Rajah 6.2,

6 (b)(i)

2

(i) compare the forces acting on the airplane bandingkan daya yang bertindak ke atas kapalterbang

vertically : ………...……………………………………………. secara menegak

horizontally : ………………..……..………………………………. secara mengufuk

[2marks]

6 (b)(ii)

2

(ii) compare the forces acting on the load.

bandingkan daya yang bertindak ke atas beban.

Vertically : ………………………………………………………. secara menegak

horizontally : ……………….………………………………………. secara mengufuk

[2 marks]

6 (c)

1

c) Compare the type of motion of the airplane and the object. Bandingkan jenis gerakan kapalterbang dan objek.

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

.................................................................................................................. [1 mark]

6 (d)

1

d) Based on your answer in 6(b) and 6(c), relate the type of motion with the resultant forces acting on the aeroplane or on the load. Berdasarkan jawapan anda dalam 6(b) dan 6(c), hubungkaitkan antara jenis gerakan dengan daya paduan yang bertindak ke atas kapalterbang atau beban.

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

[1 mark]

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6 (e)

1

e)

Name the phenomenon shown in Diagram 6.1 and Diagram 6.2. Namakan fenomena fizik yang ditunjukkan dalam Rajah 6.1 dan Rajah 6.2.

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

[1 mark]

Total A6

8

7.

Diagram 7.1 shows a concrete water tank filled with water. Rajah 7.1 menunjukkan sebuah tangki konkrit yang diisi dengan air.

Diagram 7.1

Rajah 7.1

7 (a)

1

a) State a factor that affects the water pressure in the tank. Nyatakan satu faktor yang mempengaruhi tekanan air di dalam tangki.

……………………………………………………………………………………………

[1 mark]

7 (b)(i)

1

b) (i) Compare the water pressure at P and Q Bandingkan tekanan air di P dan Q

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

[1 mark]

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7 (b)(ii)

1

(ii) Calculate the water pressure at Q. (Density of water = 1000 kg m-3 )

Hitungkan tekanan air pada Q (Ketumpatan air = 1000 kg m-3)

[2 marks]

7 (c)(i)

1

c)

Diagram 7.2 shows water flows from the concrete tank to the house water tank. Rajah 7.2 menunjukkan air mengalir dari tangki konkrit ke tangki air di rumah.

Diagram 7.2

Rajah 7.2

(i) What is the factor that causes the water to flow from the concrete

tank to the water tank in the house? Apakah faktor yang menyebabkan air boleh mengalir dari tangki konkrit ke tangki air di rumah?

……………………………………………………………………………… [1 mark]

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. 7 (c)(ii)

2

(ii) The flow of water from the concrete tank to the house will stop at level P. Explain why the supply stops? Pengaliran air dari tangki konkrit ke tangki air di rumah akan terhenti pada paras P. Terangkan mengapa pengalirannya berhenti?

…………………………………………………………………………………

.…………………………………………………………………………………

[2 marks]

7 (d)(i)

2

d) (i) Suggest two modifications that can be done to ensure the water flow continously to the house water tank. Cadangkan dua pengubahsuaian yang boleh dibuat untuk memastikan air dapat mengalir secara berterusan ke tangki di rumah kediaman.

…………………………………………………………………………………

…………………………………………………………….……………………

[2 marks]

7 (d)(ii)

1

Total A7

10

(ii) Draw a water tank that can withstand high water pressure . Lukiskan tangki air yang boleh menampung tekanan yang tinggi.

[1 mark]

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8.

Table 8 shows two types of pot and their characteristics. Jadual 8 menunjukkan dua jenis periuk dan ciri-cirinya.

Table 8 Jadual 8

8 (a)

1

a)

What is the meaning of specific heat capacity? Apakah yang dimaksudkan dengan haba pendam tentu?

…………………………………………………………………………………… [ 1 mark]

8 (b)(i)

2

b)

Based on Table 8, state suitable characteristic of the pot if it is to be used for cooking something rapidly. Berdasarkan Jadual 8, nyatakan ciri-ciri bagi periuk jika digunakan untuk masak sesuatu dengan cepat

Give reason for the suitability of the characteristics Berikan sebab untuk kesesuaian ciri-ciri itu

(i) Material for making the pot

Bahan untuk membuat periuk.

…………………..……………………………………………………………….

Reason Sebab

…………………………………………………………………………………

[2 marks]

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8 (b)(ii)

2

8 (b)(iii)

2

(ii) Material for making the handle of the pot Bahan untuk membuat pemegang periuk.

…………………………………………………………………………………

Reason / Sebab

…………………………………………………………………………………

[2 marks] (iii) Mass of the pot

Jisim periuk.

…………………………………………………………………………………

Reason / Sebab

…………………………………………………………………………………

[2 marks]

8 (c)(i)

2

8 (c)(ii)

2

c)

The pots are heated by using an electric hot plate of power 800 W. Based on the information in Table 8, calculate the time to achieve a temperature rise of 90°C for : Periuk-periuk itu dipanaskan dengan menggunakan plat pemanas elektrik berkuasa 800 W. Berdasarkan maklumat dalam Jadual 8, hitungkan masa yang diambil untuk meningkatkan suhu sebanyak 90°C bagi :

(i) The clay pot. Periuk tanah liat

[2 marks] (ii) The copper pot

Periuk kuprum

[2 marks]

8 (d)

1

Total A8

12

d) Determine the most suitable pot that is the safest to handle and can be heated in the shortest period of time Tentukan periuk yang paling sesuai, iaitu yang paling selamat untuk dikendalikan dan boleh dipanaskan dalam masa yang paling singkat .............................................................................................................................. ..............................................................................................................................

[1 mark]

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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 bahagian ini.

9

a)

Figure 9.1 shows a glass tube with a constriction at the centre. Water from a tap is allowed to flow constantly through the glass tube.

Rajah 9.1 menunjukkan tiub kaca dengan jerutan ditengahnya. Air dari pili dibenarkan mengalir secara seragam melalui tiub kaca.

Diagram 9.1

Rajah 9.1

(i) What is meant by pressure in liquids? Apakah yang dimaksudkan dengan tekanan di dalam cecair?

[1 mark]

(ii) Using Figure 9.1, compare the diameter of the tube, the pressure that exerted at the point a, b and c, and speed of the water flow at point a, b and c. Menggunakan Rajah 9.1, bandingkan diameter tiub, tekanan yang dikenakan pada titik a, b dan c, dan kelajuan aliran air pada titik a, b dan c.

Relating the pressure and the speed to deduce a relevant physics concept.

Hubungkaitkan tekanan dan laju bagi menghasilkan satu konsep fizik yang sesuai.

[4 marks]

X Y Z

Water out / Air keluar

Water in / Air masuk

a b c

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(b) c)

(iii) Name the physics principle that explains the above situations. Namakan prinsip fizik yang menerangkan situasi di atas.

[1 mark]

(iv) Mark in Figure 9.1 the relative water level on each of the tubes labeled X, Y, and Z. Pada Rajah 9.1, tandakan aras air relatif pada setiap tiub berlabel X, Y dan Z.

[1 mark]


Figure 9.2 shows the cross section of the wing of an aeroplane in aerofoil shape. Explain how the aerofoil creates a lift.

Rajah 9.2 menunjukkan keratan rentas sayap kapalterbang dalam bentuk aerofoil. Terangkan bagaimana aerofoil menghasilkan daya angkat.

[3 marks]

Diagram 9.3 shows a cargo aeroplane. Rajah 9.3 menunjukkan sebuah kapal terbang kargo.


Air flow / Aliran udara

Moving direction / Arah gerakan

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Using the appropriate physics concept, explain the modification should be done to the aeroplane to become a jet based on the following aspects.

Menggunakan konsep fizik yang sesuai, terangkan pengubahsuaian yang perlu dilakukan pada kapal terbang itu untuk dijadikan sebuah jet berdasarkan aspek-aspek berikut:

(i) the material used to built the body of the jet bahan yang digunakan untuk membina badan jet

(ii) the shape of the jet’s body bentuk badan jet

(iii) the engine power kuasa enjin

(iv) detecting system sistem pengesan

(v) the safety system for the pilot sistem keselamatan juruterbang

[10 marks]

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10

a)

Diagram 10.1 shows two trolley of different mass with same material, placed on top surface of identical table before release via smooth identical pulley. The mass of the slotted weight which pulled both trolleys and the distance of the trolleys from the pulley are the same.

Rajah 10.1 menunjukkan dua buah troli yang berlainan jisim dari jenis bahan yang sama, berada di atas permukaan meja yang serupa sebelum dilepaskan melalui takal licin yang serupa. Jisim pemberat berslot yang menarik kedua-kedua troli dan jarak troli dari takal adalah sama.

Diagram 10.2 shows the position of both trolleys after released simultaneously. Rajah 10.2 menunjukkan kedudukan kedua-dua troli selepas dilepaskan serentak.

Diagram 10.1

Rajah 10.1

Diagram 10.2

Rajah 10.2

Pemberat berslot

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b)

c)

(i) What is meant by resultant force?

Apakah yang dimaksudkan dengan daya paduan?

[1 mark]

(ii) Using Diagram 10.1 and Diagram 10.2, compare the mass of the trolley,

the distance moved by the trolley and the velocity of the trolley a few

moment after released.

Menggunakan Rajah 10.1 dan Rajah 10.2, bandingkan jisim troli, jarak

pergerakan troli dan halaju troli selepas beberapa ketika dilepaskan.

Relate the force that moved the trolleys, the mass and the acceleration to deduce a relevant physics concept.

Hubungkaitkan antara daya yang memecutkan troli, jisim dan pecutan troli untuk menyimpulkan satu konsep fizik yang sesuai.

[5 marks]

Explain how a car moving with a uniform velocity can be accelerated and sketch a graph to show the motion of a car.

Terangkan cara bagaimana sebuah kereta yang sedang bergerak dengan halaju seragam boleh dipecutkan dan lakarkan graf untuk menunjukkan pergerakan kereta tersebut.

[4 marks]

Diagram 10.3 shows a stroboscope’s photograph of a long jumper during the event in a tournament. Rajah 10.3 menunjukkan fotograf stroboskop seorang ahli lompat jauh sedang membuat lompatan dalam satu pertandingan.

Diagram 10.3

Rajah 10.3

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Using a relevant physics concept, give some suggestions and explain how the

long jumper can jump further.

Explain your suggestions based on the following aspects:

Dengan menggunakan konsep fizik yang sesuai, berikan beberapa cadangan dan

terangkan bagaimana pelompat jauh tersebut boleh melompat lebih jauh

Terangkan cadangan anda berdasarkan aspek-aspek berikut:

(i) the athelete’s attire

pakaian dan kasut atlet tersebut

(ii) running and jumping techniques

teknik larian dan lompatan

(iii) landing techniques

teknik pendaratan

(iv) landing pitch

tempat pendaratan

[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 bahagian ini.

11

a) b)

(i) What is meant by temperature? Apakah yang dimaksudkan dengan suhu?

[1 mark] (ii) Explain why a frying pan made of low specific heat capacity material

can be used to cook food faster.

Terangkan kenapakah kuali yang diperbuat oleh bahan muatan haba tentu yang rendah boleh digunakan untuk memasak makanan dengan cepat.

[3 marks] A solid substance of mass 0.5 kg is heated using an immersion heater of

240 V 50 W. Diagram11.1 shows the heating curve of the substance.

Satu bahan pepejal dengan jisim 0.5 kg dipanaskan menggunakan alat pemanas elektrik 240 V 50 W. Rajah 11.1 menunjukkan keluk pemanasan bahan tersebut.

Digram 11.1

Rajah 11.1

(i) Estimate the room temperature. Anggarkan suhu bilik.


(i) Estimate the room temperature.

Anggarkan suhu bilik. [1 mark]

Temperature / o C Suhu / o C 148

77

32

Time / min 3 7 12 Masa / min

A B C

4531/2 SULIT

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c)

(ii) What is the melting point of the substance.

Apakah takat lebur bahan itu. [1 mark]

(iii) Calculate the specific heat capacity of the solid substance.

Kira muatan haba tentu bahan pepejal itu.

[2 marks]

(iv) Calculate the specific latent heat of fusion of the substance Kira haba pendam tentu pelakuran bahan itu.

[2 marks] Diagram 11.2 shows the design of a car engine radiator. Rajah 11.2 menunjukkan rekabentuk radiator enjin sebuah kereta.


4531/2 SULIT

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Table 11.3 Jadual 11.3

Table 11.3 shows the characteristics of four types engine and radiator systems. Explain the suitability of each of the characteristics in Table 11.3 and then determine them most suitable engine and radiator system to be used in a car without causing overheating in the car engine. Jadual 11.3 menunjukkan ciri-ciri bagi empat jenis enjin dan sistem radiator. Terangkan kesesuaian bagi setiap ciri-ciri dalam Jadual 11.3 dan tentukan enjin dan sistem radiator yang paling sesuai digunakan di dalam kereta tanpa menyebabkan pemanasan melampau pada enjin kereta.

[10 marks]

Engine and radiator system

Enjin dan sistem radiator

Number of cooling fin

blade Bilangan bilah sirip penyejuk

Size of fan Saiz kipas

Boiling point of cooling liquid /

o C Takat didih

cecair penyejuk /

o C

Specific heat capacity of

cooling liquid / J kg-1 oC-1

Muatan haba tentu cecair penyejuk / J kg-1 oC-1

A

Low Rendah

Small Kecil

145

5480

B

Medium Sederhana

Medium Sederhana

86

2100

C

High Tinggi

Large Besar

100

4200

D

Very high Sangat tinggi

Extra large Sangat besar

68

480

4531/2 SULIT

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12

a)

b)

Diagram 12.1 shows a tank consisting of a liquid P. A ray of light is shone from air into the tank and refraction occurs. Rajah12.1 menunjukkan sebuah tangki mengandungi cecair P. Sinar cahaya dilihat dari udara ke dalam tangki dan pembiasan berlaku.

Diagram 12.1

Rajah 12.1

(i) What is meant by refraction.

Apakah yang dimaksudkan dengan pembiasan.

[1 mark]

(ii) Compare the speed of light in air and in liquid P. Bandingkan kelajuan cahaya dalam udara dan di dalam cecair P.

[1 mark]

(iii) Liquid P is then replaced by liquid Q with the angle X unchanged. It is noticed that for the angle Y for liquid Q is bigger than that of liquid P. Compare the refractive index of liquid P and liquid Q. Explain your answer. Cecair P kemudiannya digantikan dengan cecair Q dengan sudut X tidak berubah. Dinyatakan bahawa sudut Y untuk cecair Q adalah lebih besar daripada cecair P. Bandingkan indeks biasan cecair P dan cecair Q. Terangkan jawapan anda.

[3 marks] Four students are provided with materials as shown in Table 12.2. They are not allowed to choose other lenses and cardboards other than those provided but are allowed to shorten the cardboards provided if they need to. Empat orang pelajar dibekalkan dengan bahan yang ditunjukkan dalam Jadual 12.2. Mereka tidak dibenarkan untuk memilih kanta atau kadbod lain kecuali yang disediakan sahaja tetapi dibenarkan untuk memendekkan kadbod yang dibekalkan jika mereka perlu berbuat demikian.

X

Y

Liquid P Cecair P

Air / Udara

Tank / Tangki

4531/2 SULIT

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c)

StudentPelajar

Power of lenses provided

Kuasa kanta yang

disediakan

Length of cardboard tube provided / cm Panjang tiub kadbod yang disediakan / cm

Rita +10 D, +10 D, -10 D 50

Keevan +20 D, +5 D 45

Anuar +20 D, +2 D, -12 D 40

Siti +10 D, -5 D 30

Explain the characteristics of an astronomy telescope with normal adjustment. With that, identify which student is able to build an astronomy telescope with normal adjustment using the materials provided. Explain your choice.

Terangkan cirri-ciri bagi sebuah teleskop astronomi dengan penyesuain normal. Dengan itu, kenalpasti pelajar yang manakah berupaya untuk membina teleskop astronomi dengan penyesuain normal menggunakan bahan-bahan yang disediakan. Jelaskan pilihan anda.

[10 marks]

A piece of slide is placed 6 cm away from the lens of a projector. The focal length of the lens is 5 cm. A sharp image is formed on the screen. Determine the distance between the screen and the lens. What is the magnification of the object.

Sekeping slaid diletakkan 6 cm jauh daripada kanta sebuah projektor. Jarak fokus

kanta ialah 5 cm. Satu imej yang jelas terbentuk pada skrin. Tentukan jarak di

antara skrin dan kanta. Apakah pembesaran objek tersebut.

[5 marks]

-END OF QUESTIONS PAPER- KERTAS SOALAN TAMAT

1

Peperiksaan Akhir Tahun Negeri Melaka Tingkatan 4 2011 Marking scheme Paper 2 (4531/2)

Section A

QUESTION 1 Mark/marks

1 (a) mass 1

(b)(i) Zero error 1

(ii) 6 g 1

(c) 24 g 1

TOTAL 4

QUESTION 2

2 (a) Archimedes’ Principle 1

(b) Upthrust/buoyant force acts on the object

1

(c) 1.0 = V x 1000 x 10

V = 1.0 x 10-4 m3

1

1

(d) Plimsoll line on the ship / safety line on the boat 1

TOTAL 5

QUESTION 3

3 (a) Net heat flow is zero // final temperature is equal/ rate of heat flow is equal 1

(b) The initial temperature of cloth is lower than the body temperature.

Heat energy is transferred from the body to the towel. //

Heat energy is transferred until temperature is equal / no heat loss

1

1

(c) Heat energy, Q = m c

= 0.3 (4200) ( 38 – 30 )

= 10080 J (with unit)

1

1

(d) Decrease 1

TOTAL 6

QUESTION 4

4(a) Work is defined as the product of an applied force and the

displacement of an object in the direction of the applied force/

Work = Force x displacement/ distance

1

(b)(i) Work done = Force X displacement

= 220 X 0. 5

= 110 J

1

1

(ii) Work done = mgh

= 20 x 10 x 0.5

= 100 J

1

1

2

(c)(i) The work done by the worker is more than the work done on the load 1

(ii) Some work is wasted to overcome friction / energy loss 1

TOTAL 7

QUESTION 5

5 (a) Pressure is perpendicular force acting on a unit area/force

P(Pressure) = Force, F/ Area,A

1

(b)(i) Balloon B /Diagram 5.2 1

(ii) Pressure of needle is higher/greater than finger/vice versa 1

(iii) The surface area of needle is smaller than finger/ vice versa 1

(iv) As the pressure increases, the surface area decreases/ 1

(v) Pressure increase 1

(c) Pressure 1

(d) The handle of the bag has large area to reduce the pressure on the hand/the

edge of knife’s blade is small/the studs of football is small/ skis have large

area/ suitable item

1

TOTAL 8

QUESTION 6

6(a) Weight is the gravitational force acts an object. 1

(b) (i)

lift is equals to weight // lift = weight drag is equals to thrust // drag = thrust

1

1

(ii) Sum of the vertical components of the tensions in the string is

equals in magnitude to the weight hanging // vertical components of the tension in the string (T1 and T2) are equal to W // W = T1+T2

The tension of string pulling to he left is equals to the tension of string pulling to the right // horizontal components of the tension in the strings (T1 and T2) are equal and opposite

1

1

(c) the airplane is moving at a constant speed while the object is at rest 1

(d) any object at rest or moving at constant speed, the resultant force

acting is equal to zero // both cases the resultant force is zero

1

(e) Equilibrium of forces 1

TOTAL 8

QUESTION 7

7 (a) depth 1

(b) (i)

Pressure at Q higher than pressure at P

1

3

(ii)

P = hρg

= 5mx1000 kg m-3x10ms-2

= 50 000 kg m-2s-2

1

1

(c) (i)

(ii)

Different in pressure.

1

Level P same as level house tank. Therefore pressure at P same as pressure in house tank

1 1

(d) (i)

(ii)

Place the concrete tank higher than house tank use electrical pump

1

1

1

TOTAL 10

QUESTION 8

8 (a) The quantity of heat needed to increase the temperature of 1 kg of the substance by 1°C

1

(b)(i) The material is copper This is because copper have low specific heat capacity

1 1

(ii) The material is polymer This is because polymer have high specific heat capacity

1 1

(iii) Lower mass It is easy to handle

1 1

(c)(i) Pt = mcӨ t = mcӨ P = 3.5 x 900 x 90 800 = 354.4 s

1

1

(ii) Pt = mcӨ t = mcӨ P = 2.5 x 390 x 90 800 = 109.7s

1 1

(d) The most suitable is copper pot 1

TOTAL 12

4

SECTION B

NO SUGGESTED ANSWER MARKS

9

a)(i)

(ii)

(iii)

(iv)

(b)

(c)

Pressure (P) in liquid at a depth (h)is given by P = hρg, ρ = Density of the liquid g = Gravitational acceleration Compare the diameter of the tube correctly - The diameter a = diameter c and bigger than diameter b // ([a=c] >b) Compare the pressure that exerted at point a, b and c correctly - Pressure a > Pressure c > Pressure b Compare the speed of the water flow at point a, b and c correctly - Speed b > Speed c > Speed a Relate the pressure and the speed to deduce a relevant physics concept - The higher the pressure, the lower the speed of the water flow Name the physics principle correctly - Bernoulli’s principle

The shape of the aerofoil causes air to flow more rapidly over its upper

surface than its lower one. According to Bernoulli’s principle, this leads to a situation where there

is a lower pressure on the top surface as compared to the bottom.

This difference in air pressure creates an upward resultant force called the lift.

Aspects Characteristics Explanations/Reasons

The material used to built the body of the jet

Use material of high melting point // low density

So that it does not melt at high temperature // light // easy to lift up

The shape of the jet’s body

The body of jet is more aerodynamic

To reduce air friction

The engine power

Use high power engine

To produce higher acceleration // produce higher momentum

Detecting system

Fix with radar system

To detect other objects around

The safety system for the pilot

Use ejected seat / parachute during emergency

To protect the pilot when the plane get burns / crash

Accept any possible answers.

1

1

1

1

1

1

1

1

1

1,1

1,1

1,1

1,1

1,1

TOTAL 20

Water in /

Air masuk

Water out /

Air keluar

a b c

5

10 (a)(i) (ii) b) (c)

State the meaning correctly Sum of forces Compare the mass of the trolley correctly - The mass of the trolley in 10.1 is smaller// vice versa (10.1<10.2) Compare the distance moved by the trolley correctly - The distance moved by the trolley 10.1 is further // vice versa (10.1>10.2) Compare the velocity of the trolley correctly - The velocity of 10.1 is greater // vice versa (10.1>10.2) Relate the force that moved the trolleys, the mass and the acceleration - F= ma, the greater the mass, the smaller the acceleration Name the physics law correctly - Newton Second Law of Motion The car moves with uniform velocity, has zero net force // forward

thrust = drag force. When forward thrust greater than drag force, the unbalanced force /

forward net force is produce. F=ma // net force produce acceleration.

Aspects Characteristics Explanations/Reasons

Attire Wearing tight attire Reduce air resistance / surface area

Shoes Shoes with spike Increase grip Running and jumping techniques

Bending body posture while running // Jump more high

To reduce air resistance / surface area // Increase the landing time

Landing techniques

Landing with minimum contact area with the sand

Increase the distance from the jumping plank and the landing point

Landing pitch

Sand Reduce impulsive force


1

1

1

1

1

1

1

1

1

1

1,1

1,1

1,1

1,1

1,1

TOTAL 20

11 (a)(i)

(ii)

(b)(i)

(ii)

(iii)

Degree of hotness. Smaller specific heat capacity is a better heat conductor. Heat is transferred to the food faster. Food is cooked faster.// easy to absorb heat. 32

oC

77 oC

c = Pt = (50)(3)(60)

m (0.5)(77-32) = 400 J kg

-1 oC

-1

1

1

1

1

1

1

1 1

Velocity, ms-1

Time, s

6

(iv)

(c)

Pt = ml, (50)(7-3)(60) = (0.5)l l = 2.4 x 10

4 Jkg

-1

Aspects Characteristics Reasons

Number of

cooling fin

blade

Have more fin blades More exposed area to lose heat faster

Size of fan Size of the fan should be big

Lose heat faster

Boiling point of cooling liquid

Boiling point of the cooling liquid should be high

The liquid can absorb heat without producing much gas, thus the pressure in the engine will not unduly high // not easily to boil when get hot

Specific heat capacity of cooling liquid

Specific heat capacity of cooling liquid should be high

More heat will be absorbed

The most suitable is C because it has big number of fin blades, large fan, high boiling point and high specific heat capacity.


1

1

1,1

1,1

1,1

1,1

1,1

TOTAL 20

12

(a)(i)

(ii)

(iii)

(b)

(c)

Refraction is the phenomenon of light ray deviating from its incident

direction when it travels from one medium to another. // the bending of

light due to change of light velocity when the light travels from one

medium to another.

Speed of light in Liquid P is less than speed of light in air. Light is refracted more in liquid Q than liquid P. This shows that liquid Q is denser medium than liquid P.

Hence the refractive index of liquid Q is bigger than liquid P.

An astronomy telescope consists of two convex lenses. The two lenses have different power.

The objective lens has a smaller power than the eyepiece.

At normal adjustment, the distance between the two lenses is the same as the sum of the focal lengths of the two lenses.

Rita cannot build the telescope because she has two convex lenses of the same power.

Anuar needs a tube of at least fo + fm or 55 cm. But he is provided with a 40 cm tube. Hence he cannot build an

astronomy telescope. Siti has only one convex lens. Hence she cannot build an

astronomy telescope.

Keevan is able to build the telescope.

Keevan has two convex lenses of different power and the length of

the tube provided is longer than fo + fm.

u = 6 cm, f = 5 cm

1 + 1 = 1 6 v 5 1 = 1 - 1 v 5 6 , v = 30 cm

Magnification = v = 30 = 5 u 6

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1,1

1,1

TOTAL 20

Nama: ……………………………………. Tingkatan: ………………… Fizik Kertas 3 Oktober 2011 1 ½ jam

JABATAN PELAJARAN NEGERI MELAKA

PEPERIKSAAN SELARAS AKHIR TAHUN TINGKATAN 4

2011

Fizik

Kertas 3

Satu jam tiga puluh 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.

4. Calon perlu menjawab semua soalan dalam

Bahagian A dan satu soalan daripada soalan Bahagian B.


Untuk kegunaan Pemeriksa

Bahagian No. Markah Penuh

Markah Diperolehi

A

1

16

2

12

B

3

12

4

12

Jumlah

4531/3 SULIT

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Section A Bahagian A

Answer all questions in this section.

Jawab semua soalan dalam bahagian ini.

1. Sani carries out an experiment to study the relationship between the

diameter, D, of a pencil and the number of pencils, n. Vernier callipers

are used to measure the diameter, D, of the pencils.

Sani menjalankan satu eksperimen untuk mengkaji hubungan antara diameter,

D, bagi pensel dengan bilangan penselnya, n. Angkup vernier digunakan untuk

mengukur diameter, D, pensel itu.

Figure 1.1 shows the zero error, X, on the vernier callipers.

Rajah 1.1 menunjukkan ralat sifar, X, pada angkup vernier itu.

Diagram 1.1

Rajah 1.1

Figure 1.2 shows the reading, d, on the vernier callipers when the

number of pencils, n=2.

Rajah 1.2 menunjukkan bacaan, d, pada angkup vernier apabila bilangan

pensel, n=2.

Diagram 1.2

Rajah 1.2

The procedure of measurement is repeated with the number of

n = 2

d = ………………… cm

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pencils, n = 4,6,8 and 10. The corresponding readings of the vernier

callipers are shown in Figure 1.3, 1.4, 1.5 and 1.6.

Prosedur pengukuran diulang dengan bilangan pensel, , n = 4,6,8 dan 10.

Bacaan angkup vernier yang sepadan ditunjukkan pada Rajah 1.3, 1.4, 1.5

dan 1.6.

Diagram 1.3

Rajah 13.

Diagram 1.4

Rajah 1.4

Diagram 1.5

Rajah 1.5

n = 4 d = …………………… cm

n = 6

d = ………………… cm

n = 8

d = ………………… cm

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Diagram 1.6

Rajah 1.6

(a)

(i) (ii) (iii)

For the experiment, identify

Bagi eksperimen itu, kenalpasti

the manipulated variable

pembolehubah manipulasi

___________________________________________________

the responding variable

pembolehubah bergerak balas

___________________________________________________

the constant variable

pembolehubah dimalarkan

___________________________________________________

[1mark]

[1mark]

[1mark]

(b) (i) (ii)

Based on Figure 1.1, determine the zero error, X.

Berdasarkan Rajah 1.1, tentukan ralat sifar, X.

X = __________________ cm

Based on Figure 1.2, 1.3, 1.4, 1.5 and 1.6, determine the diameter of the pencils, d. The actual diameters of the pencil,D, are determined using the formula Berdasarkan Rajah 1.2, 1.3, 1.4, 1.5 dan 1.6. tentukan diameter bagi pensel,d. Diameter sebenar pensel, D ditentukan dengan menggunakan formula

D = d - X

where X is the zero error on the vernier callipers. di mana X ialah ralat sifar pada angkup vernier.

n = 10

d = …………………. cm

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(c) (d)

Tabulate your data for all values of n, d and D in the space below. Jadualkan data anda bagi semua nilai n, d dan D pada ruang di bawah.

On the graph paper on page 6, plot a graph of D against n.

Pada kertas graf yang disediakan, plotkan graf D melawan n.

Based on the graph in 1(c), state the relationship between D and n.

Berdasarkan graf di 1 (c), nyatakan hubungan antara D dengan n.

_________________________________________________________

[6 marks]

[5 marks]

[1 mark]

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Graph of D against n Graf D melawan n

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2. A student carries out an experiment to investigate the relationship between time taken, t by a metal sphere falling from a height. The graph

of h against t 2

is in Diagram 2.1. Seorang pelajar menjalankan satu eksperimen untuk mengkaji hubungan antara masa yang diambi, t oleh satu sfera logam yang jatuh bebas dengan

ketinggian, h. Graf h melawan t 2

yang diperolehi adalah seperti dalam Rajah 2.1.

4531/3 SULIT

8

(a)

(i)

(ii)

(b)

(c)

(i)

Based on the graph h against t2

on page 7,

Berdasarkan graf h melawan t 2

pada halaman 7 ,

state the relationship between h and t2, nyatakan hubungan antara h dan t2

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

determine the time taken, t by the sphere when dropped from a height, h = 44.0 cm tentukan masa, t bila sfera itu dijatuhkan dari ketinggian, h = 44.0 cm. Show on the graph how you determine the value of t. Tunjukkan pada graf bagaimana anda menentukan nilai t. t = ……………………

Calculate the gradient of the graph. Hitung kecerunan graf

Show on the graph, how you calculate the gradient. Tunjukkan pada graf, bagaimana anda menghitung kecerunan.

The motion equation of a falling object with an initial velocity, u is given as Persamaan gerakan bagi satu jasad yang jatuh bebas dengan halaju awal, u diberi seperti berikut.

h = ut + ½ g t2

where g is the gravitational acceleration.

Dimana g adalah pecutan graviti.

State the initial velocity, u of the sphere. Nyatakan nilai halaju awal, u sfera tersebut. ..............................................................................................................................

[1 mark]

[3 marks]

[3 marks]

[1 mark]

4531/3 SULIT

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(ii)

(d)

By using the gradient of the graph in (b) and equation in (c), calculate the gravitational acceleration, g . Menggunakan nilai kecerunan graf dalam (b) dan persamaan dalam (c) , hitung pecutan graviti, g

State one precaution that should be taken in this experiment to improve

the accuracy of the readings in the experiment. Nyatakan satu langkah berjaga-jaga yang perlu diambil untuk memperbaiki kejituan bacaan dalam eksperimen ini.

…………………………………………………………………………………………… ……………………………………………………………………………………………

[1 mark

]

[3 marks]

[1 mark]

4531/3 SULIT

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Section B

[12 marks/markah]

Answer one question only. Jawab mana-mana satu soalan

3

The diagram above shows a boy and her mother each sit on similar swings. when they are given a push, it is found that the mother will be more difficult to be moved.

Rajah di atas menunujukkan seorang budak perempuan dan ibunya duduk di atas buaian yang sama. Apabila mereka ditolak, didapati bahawa

buaian dengan ibu di atas lebih sukar digerakkan.

Based on the above information and observation, Berdasarkan maklumat dan pemerhatian:

(a)

State one suitable inference. Nyatakan satu inferens yang sesuai.

[1mark]

(b) State one appropriate hypothesis that could be investigated.

Nyatakan satu hipotesis yang boleh disiasat.

[1mark]

(c) With the use of apparatus such as hacksaw blade, plasticine, G-

clam and other apparatus, describe one experiment to investigate the hypothesis stated in 3(b). Dengan menggunakan radas seperti bilah gergaji keluli, plastisin, pengapit G 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) The aim of the experiment Tujuan eksperimen

Mass of boy = 25kg Jisim budak lelaki = 25kg

Mass of mother = 65kg

Jisim ibu = 65 kg

4531/3 SULIT

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(ii) Variables in the experiment Pembolehubah dalam eksperimen

(iii) The list of apparatus and materials Senarai radas dan bahan

(iv) Arrangement of the apparatus Sususan radas

(v) The procedure of the experiment which includes one method of controlling the manipulated variable and one method of measuring the responding variable.

Prosedur eksperimen yang mesti termasuk satu kaedah mengawal pembolehubah dimanipulasikan dan satu kaedah mengukur pembolehubah bergerak balas

(vi) The way to tabulate the data Cara untuk menjadualkan data

(vii) The way to analyse the data.

Cara untuk menganalisis data

[10 marks]

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4.

Figure 4 shows same amount of heat is supplied to two metal pots (a) and (b) which have different volume of water, 1000 cm³ and 2000 cm³ water respectively. After five minutes, water in metal pot (a) started to boil but water in metal pot (b) is still not boiling. Rajah 4 menunjukkan kuantiti haba yang sama dibekalkan kepada dua periuk logam iaitu periuk logam (a) dan periuk logam (b) yang mempunyai isipadu air yang 1000 cm³ dan 2000 cm³ masing-masing Selepas lima minit, didapati air di dalam periuk logam (a) mula mendidih tetapi air di dalam periuk logam (b) masih belum mendidih

(a) State one suitable inference. Nyatakan satu inferens yang sesuai.

[1mark]

(b) State one appropriate hypothesis that could be investigated.

Nyatakan satu hipotesis yang boleh disiasat.

[1mark]

(c) With the use of apparatus such a beaker, an immersion heater,

thermometer and other apparatus, describe one experiment to investigate the hypothesis stated in 4(b).

Dengan menggunakan radas seperti bikar, pemanas rendam, termometer dan lain lain 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) The aim of the experiment Tujuan eksperimen

(ii) Variables in the experiment Pembolehubah dalam eksperimen

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13

(iii) The list of apparatus and materials Senarai radas dan bahan

(iv) Arrangement of the apparatus Sususan radas

(v) The procedure of the experiment which includes one

method of controlling the manipulated variable and one method of measuring the responding variable.

Prosedur eksperimen yang mesti termasuk satu kaedah

mengawal pemboleh ubah dimanipulasikan dan satu kaedah mengukur pembolehubah bergerak balas

(vi) The way to tabulate the data Cara untuk menjadualkan data

(vii) The way to analyse the data. Cara untuk menganalisis data

[10 marks]

END OF QUESTION PAPER KERTAS SOALAN TAMAT

SKEMA JAWAPAN KERTAS 3 PEPERIKSAAN AKHIR TAHUN 2011 TINGKATAN EMPAT

NEGERI MELAKA Section A

Question Sub mark

Mark Scheme Total mark

1 (a) (i)

1

Able to state the manipulate variable Number of pencils

1

(ii) 1

Able to state the responding variable Diameter of pencils / the reading of vernier callipers

1

(iii) 1

Able to state the constant variable Diameter of one pencil

1

(b) (i) 1

Able to state of the value of x -0.04 cm

1

(ii)

6

Able to tabulate n, d and D.

Tick () based on the following aspect 1 – Quantities n, d and D shown in heading 2 – Unit shown in heading 3 and 4 – All values for d correct (2 marks) (3 values correct – 1 mark) 5 – All value of D correct 6 - All values for d and D consistent

n d (cm) D = d – (-0.04) (cm)

2 1.14 1.18

4 2.08 2.12

6 3.24 3.28

8 4.48 4.52

10 5.72 5.76

6

(c)

Able to draw a complete graph of D and n

Tick () based on the following aspects: A – Show D on Y axis and n on the X axis B – State the units of the variables correctly C – Both axis are marked with uniform scale D – All five points are plotted (3 point 1 tick) 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

5

(d) Able to state the correct relationship between D and n

D is directly proportional to n // D n

1

TOTAL 16

2

Question 2 Sub

Marks

Answer Total

Marks

(a)(i) 1 h is directly proportional to t2// h α t2 1

(ii) 1

1

1

1. Show on graph with appropriate vertical/horizontal line corresponding to 44 cm.

2. t2 = 0.088s 3. t = 0.297s (2 d.p or 3 d.p)

3

(b) 1

1

1

1. Drawing the gradient triangle Triangle size a minimum of 4 x 4 of 2 cm

2. Substitution(values from student’s triangle)

3. Answer with correct unit 500 cms-2

3

(c) (i)

(ii)

1

1

1

1

u = 0 m/s

1. Show that h = m t2

2. Substitution of the gradient ½ g = 500

3. Answerwith correct unit.1000 cms-2 or 10 ms-2

4

(d) 1 When measuring the values of h,make sure the eyes

are perpendicular to the scale on the metre rule//

Repeat the reading twice to get an average value.

1

Total marks 12

Section B

Question Sub mark

Mark Scheme Total mark

3(a) 1 Making the right inference The time taken for body to start move depends on its mass // The inertia of the body depends on its mass // The period of oscillation depens on its mass

1

(b) 1 Building an appropriate hypothesis The greater the mass, the longer time taken for body to start move // The greater the mass, the longer the period of oscillation/inertia The larger the mass, the bigger the inertia

1

Total marks 2 marks

3

(c)(i) 1 Stating the aim of the experiment To study the relationship between the mass and period of oscillation / time taken for 1 complete oscillation/inertia

1

(ii)

1 1 1

Stating the correct variables Manipulated variable : The mass of plasticine, m Responding variable : The period of oscillation, T/ inertia Fixed variable : The length of the hacksaw blade / the

number of oscillation / angle of displacement of hacksaw blade / stiffness of hacksaw blade

3

(iii) 1 List of appropriate apparatus and material Hacksaw blade, stopwatch, plasticine/slotted weight, G-clamp, balance

1

(iv) 1

Describing set up of the apparatus

v)

1

1

1

Stating the procedure of the experiment 1. The hacksaw blade is clamp horizontaly / diagram

State the method to control the manipulated variable 2. Plasticine with a mass of 50 g is clamped to the

end of the hacksaw blade 3. The blade is displaced horizontally and released,

and a stopwatch is started simultaneously

State the method to measure the responding variable 4. The time taken for 20 complete oscillations is

recorded , t 5. The period of oscillation is calculated by using

T = t 20

Repeat the experiment

6. Repeat the previous steps with difference mass of plasticine = 100g, 150g, 200g and 250g

7. Record data 8. Plot a graph of period against mass

3

G-clamp

Hacksaw blade

plasticine

4

vi) 1 Tabulating data Show table with mass and period

Mass of plasticine, m /g

Time for 20 oscillations, t / s

Period of oscillation, T/s

50

100

150

200

250

1

viii) 1 Analysing data T/s m/g or plot a graph of period against mass

1

Maximum marks 10 marks Total marks 12 marks

Question Sub mark

Mark Scheme Total Marks

4(a) 1 Making the right inference The change in temperature/ The increases in temperature / the difference in temperature of water when heat is supplied depends on its mass/volume

1

(b) 1 Building an appropriate hypothesis The higher the mass/volume, the smaller the change in its temperature

1

Total marks

2 marks

(c)(i) 1 Stating the aim of the experiment To study the relationship between mass/volume and the change in temperature of water

1

(ii)

1 1 1

Stating the correct variables Manipulated variable : mass of water, m/ volume, V Responding variable : change in temperature, Ө Fixed variable : time of heating // density of liquid

1

(iii) 1 List of appropriate apparatus and material Water, 500 ml beaker, sttirrer, thermometer, immersion heater, electronic balance and stop watch

1

5

(iv) 1

Describing set up of the apparatus

1

v)

1

1

1

Stating the procedure of the experiment 1. Connect the heater with a power pack. Immerse

the heater in a beaker of water / diagram State the method to control the manipulated

variable

2. 50g water in a beaker is weighted 3. Record the initial temperature of water, Өо 4. The immersion heater is started to heat the water

for 5 minutes

State the method to measure the responding variable 5. Record the final temperature, Өƒ after 5 minutes 6. The change of temperature, Ө is recorded by

Ө = Өƒ - Өо Repeat the experiment

7. The experiment is repeated with difference mass of water = 100g, 150g, 200g and 250g

8. Record data 9. Plot a graph of change in temperature against

mass

3

vi) 1 Tabulating data Show table with mass and change in temperature

Mass of water,m /g

Change in temperature, Ө/ °C

50

100

150

200

250

1

viii) 1 Analysing data Ө/ °C m/g or Plot graph change in temperature against mass

1

Maximum marks 10 marks Total marks 12 marks

fizik f4 123 akt 2011

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