79950674-fizik-f4-123-akt-2011

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4531/1 Fizik Kertas 1 Oktober 1 ¼ jam

JABATAN PELAJARAN NEGERI MELAKA PEPERIKSAAN AKHIR TAHUN TINGKATAN EMPAT TAHUN 20

11

FIZIK

Kertas 1 Satu jam lima belas minit JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERI

TAHU 1. Kertas ini mengandungi 50 soalan objektif. 2. Jawab semua soalan. 3. Jaw

ab setiap soalan dengan menghitamkan jawapan yang betul di ruangan pada kertas j

awapan. 4. Hitamkan hanya satu ruang untuk setiap soalan. 5. Jika anda hendak me

nukar jawapan, padamkan tanda yang telah dihitamkan dan hitamkan jawapan di ruan

gan yang baru. 6. Rajah dalam soalan yang diberi adalah tidak mengikut ukuran sk

ala yang sebenar kecuali dinyatakan. 7. Anda boleh menggunakan kalkulator sainti

fik yang tidak boleh diprogramkan. 8. Senarai formula disediakan pada mukasurat

2.

Kertas soalan ini mengandungi 28 halaman bercetak

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[Lihat sebelah]

SULIT The following information may be useful. The symbols have their usual mean

ing.

v�u t

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1. a =

18.

1 1 1 = + f u v

image size object size

2. v2 = u2 + as 3. s = ut + at

2

19. linear magnification =

ax D

4. Momentum = mv 5. F = ma

1 6. Kinetic energy = mv2 2

20. λ =

21. n =

Sin i Sin r real depth apparent depth

7. Potential energy = mgh 8. Elastic potential energy = 9. ρ =

m v

22. n =

1 Fx 2

23. Q = It 24. V = IR 25. Power, P = IV 26.

10. Pressure, p = hρg 11. Pressure, p =

F A

Ns V = s Np Vp I sV s x 100% I pV p

12. Heat, Q = mcθ 13. Heat, Q = ml 14.

pV = constant T

27. Efficiency = 28. g = 10 ms-2

15. E = mc2 16. v = fλ 17. Power, P =

energy time

2 SULIT [Lihat sebelah]

SULIT 1. Which of the following is a base unit?

Manakah di antara berikut adalah unit asas?

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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 bersam

aan dengan

A B C D 3.

2.50 X 103 W 2.50 X 106 W 2.50 X 108 W 2.50 X 109 W

Diagram 1 / Rajah 1 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 menunjukk

an kesan yang jitu?


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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 r

ajah 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.

Diagram 2 / Rajah 2 What is the density of the cheese ?

Apakah ketumpatan bagi setiap blok keju?

A B C D 6.

0.42 g / cm3 0.83 g / cm3 1.2 g / cm3 2.4 g / cm3

A student carries out an experiment where the variables are as follows: Manipula

ted variable : P Responding variable : Q Constant variable : R Which is the grap

h that should be drawn?

Seorang pelajar menjalankan suatu eksperimen dengan pembolehubah seperti berikut

: Pembolehubah dimanipulasikan : P


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Pembolehubah bergerak balas : Q Pembolehubah dimalarkan : R Graf manakah yang pa

tut dilukis?

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7.

Which physical �uantity is e�ual to

��

?

Kuantiti fizik manakah yang sama dengan

?

A speed

Laju

B Velocity

Halaju

C Distance

Jarak

D Acceleration

Pecutan

8.

Diagram 3/ Rajah 3

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 correctl

y describe the motion of the car?

Titisan minyak pelincir jatuh keluar dengan kadar tetap daripada sebuah kereta y

ang sedang


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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 .

Diagram 4/ Rajah 4

Which physical �uantity 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


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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?.

Diagram 5 / Rajah 5

A increases

bertambah

B decrease

berkurang

C unchanged Tidak berubah 11. Table 1 shows the mass and velocity of three plane

ts.

Jadual 1 menunjukkan jisim dan halaju tiga buah planet

Table 1 / Jadual 1

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


SULIT 12. Diagram 6 shows two forces are perpendicular to each other.

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Rajah 6 menunjukkan dua daya yang bertindak secara serenjang antara satu sama la

in.

Diagram 6 / Rajah 6

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 accelera

tion?

Objek yang manakah bergerak dengan pecutan paling besar?


SULIT 14. Diagram 7 shows an aeroplane flying horizontally with increasing veloc

ity.

Rajah 7 menunjukkan sebuah kapal terbang sedang terbang secara mendatar dengan h

alaju yang bertambah

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Diagram / Rajah 7 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 = Thr

ust 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 e�uilibrium by two stri

ngs.

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

gan.

Diagram 8 / Rajah 8

Which of the vector diagrams represent the forces T 1, T2 and W acting on the lo

ad?

Rajah vektor yang manakah mewakili T1, T2 dan W yang bertindak ke atas beban ter

sebut?


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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.

Diagram 9 / Rajah 9

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


SULIT 17.

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Diagram 10 / Rajah 10

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 cont

act 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 kelajua

n 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 B C D

3.7 N 33.7 N 337.5 N 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 �= 60 , what is the work done by the lady?. Jika F = 20 N, s=50 m dan �= 600, berapakah kerja yang dilakukan oleh perempuan itu?.0


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

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19. Which of the following is TRUE regarding the Principle of Conservation of En

ergy?

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 iala

h

A potential energy of the wooden block

Tenaga keupayaan blok kayu

kinetic energy of the weight

tenaga kinetik pemberat

B potential energy of the weight

Tenaga keupayaan pemberat

kinetik energy of the wooden block

tenaga kinetik blok kayu

C potential energy of the weight block

Tenaga keupayaan pemberat

kinetik energy of the weight and wooden

tenaga kinetik pemberat dan blok kayu

D potential energy of the weight and wooden block wooden block

Tenaga keupayaan pemberat dan blok kayu

kinetic energy of the

tenaga kinetik blok kayu


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21. Diagram 13 shows a lift is powered by an electric motor. The lift and its pa

ssengers have a combined mass of 500 kg and the lift moves upward with an averag

e speed of 4 m s-1

Rajah 13 menunjukkan satu lif yang digerakkan oleh sebuah motor elektrik. Lif da

n penumpangnya mempunyai jumlah jisim 500 kg dan lif bergerak ke atas padakelaju

an min(purata) 4 m s-1


What is the output power of the motor?

Berapakah kuasa output motor?

A B C D E

125 W 200 W 1250 W 2000 W 20000 W

22. Assuming all the springs are identical, which arrangement will produce the l

argest total extension?

Dengan mengandaikan semua spring adalah serupa, susunan yang manakah akan mengha

silkan jumlah pemanjangan yang terbesar? A B


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C D

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23. Diagram 14 shows a graph of force against extension for an elastic string. R

ajah 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 k

ecerunan 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 dip

akai 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.

Diagram 15.1 / Rajah 15.1

Diagram 15.2/ Rajah 15.2

Why does the water in Diagram 15.1 flow out at a slower rate than the water in D

iagram 15.2?

Mengapakah air dalam Rajah 15.1 keluar pada kadar yang lebih rendah berbanding a

ir dalam Rajah 15.2?

A The pressure at Y is larger than the pressure at X. Tekanan di Y lebih besar d

ari 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 e�ual. Tekana

n di X dan Y adalah sama.


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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 t

he water = 1000 kg m-3]

Jika tekanan pada titik P adalah 12 000 N m-2, ketinggian h ialah [ketumpatan ai

r = 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 e�ual 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 pen

yedut 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 e�ual 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 b

ekas .


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 17 SULIT [Lihat sebelah]

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30. Why the atmospheric pressure at higher altitude is lower? Mengapa tekanan at

mosfera semakin berkurang pada tempat yang semakin tinggi altitudnya ? A Tempera

ture 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?

A

B

C

D

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 e�uivalent to force applied,F.

Berat beban, W sama dengan daya yang digunakan, F.

B The most suitable type of li�uid 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 teka

nan 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.


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Dalam rajah 20 di bawah, yang mana satu titik dalam tiub itu mempunyai tekanan u

dara yang paling tinggi?

33. In the diagram 20 below, which point in the tube has the highest air pressur

e?


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 e�uilibrium

Prinsip keseimbangan


SULIT 35. Diagram 22 shows a box on a raft floating in a river.

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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 ai

r 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 m 3, berapakah daya tujah yang berti

ndak 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 e�uilibrium.

Rajah 24 menunjukkan sebuah ketuhar digunakan untuk membakar kek. Selepas 40 min

it, kek itu mencapai keseimbangan termal.


When is thermal e�uilibrium 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 e�ual 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 e�ual.

Bila pemindahan haba bersih antara kek dan ketuhar adalah sama.

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

ngth 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 tu

rus merkuri pada thermometer ialah 5 cm pada 0 0C dan 50 cm pada 100 0C.



SULIT

4531/1 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 menj

adi 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 th

e hole which holds the thermometer when measuring the temperature of an aluminiu

m block. What is the use of the oil?

Rajah 26 menunjukkan, sedikit minyak dimasukkan ke dalam lubang yang menampung t

ermometer apabila mengukur suhu satu bongkah aluminium. Apakah kegunaan minyak t

ersebut?


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 kg1o -1 C

Rajah 27 menunjukkan satu silinder logam berjisim 5.0 kg dan muatan haba tentu 4

00 J kg-1 o -1 C


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 B C D

0.20 oC 0.80 oC 1.25 oC 5.00 oC

41. Between the materials A, B, C and D in the table above, which will experienc

e the largest increase in temperature if supplied the same �uantity of heat?

Antara bahan A, B, C dan D di atas, yang manakah mengalami kenaikan suhu yang pa

ling banyak jika dibekalkan kuantiti haba yang sama?

Material A B C D

Mass/kg 1.5 2.0 2.5 3.0

Specific heat capacity/ J kg-1oC-1 400 600 200 150

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 lat

ent 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 u

ntuk mengira muatan haba tentu pelakuran pepejal tersebut.


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A B C D

AB BC CD DE

43. Which graph shows the relationship between the volume and absolute temperatu

re 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 t

erperangkap 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 B C D

28.4 oC 42.0 oC 48.0 oC 52.0 oC

45. The gas in a container with insulated walls is compressed �uickly. The tempe

rature of the gas

Gas dalam suatu bekas dengan dinding yang bertebat dimampatkan dengan cepat. Suh

u 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 bagaim

ana 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 .



SULIT

4531/1 The size of the air bubbles increases as it reaches the surface. Which la

w explains the situation above?

Saiz udara semakin membesar apabila ia menaik ke permukaan. Hukum yang manakah y

ang menerangkan situasi di atas?

A Boyle�s law / hukum Boyle B Charles� law / hukum Charles C Pressure law / huku

m 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 terse

but?

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 ��

sin �� sin �� sin �� sin �� sin �� sin �� sin ��

B C

D

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 ang

le of reflection,r.

Tentukan hubungan yang betul antara sudut tuju,i dengan sudut pantulan ,r.

A B C D

i=r i>r i<r i≠r


PEPERIKSAAN AKHIR TAHUN TINGKATAN EMPAT 2011 JAWAPAN KERTAS 1

1 2 3 4 5 6 7 8 9 10

C C D D C D B C C C

11 12 13 14 15 16 17 18 19 20

A D A D D A C A C C

21 22 23 24 25 26 27 28 29 30

E A B C A A D D B B

31 32 33 34 35 36 37 38 39 40

C D C B B B C C C D

41 42 43 44 45 46 47 48 49 50

D B A B A B A C B A

4531/2 Fizik Kertas 2 Oktober 2011 2 ½ jam

Nama: ........................................ Tingkatan: ....................

NO. KAD PENGENALAN

ANGKA GILIRAN

JABATAN PELAJARAN MELAKA PEPERIKSAAN AKHIR TAHUN TINGKATAN EMPAT 2011

FIZIK Kertas 2 Dua jam tiga puluh minit

1. Kertas soalan ini mengandungi tiga bahagian : Bahagian A, Bahagian B dan Baha

gian C 2. Jawab semua soalan dalam Bahagian A, satu soalan daripada Bahagian B d

an satu soalan daripada Bahagian C. 3. Jawapan kepada ketiga-tiga bahagian ini h

endaklah diserahkan bersama-sama. 4. Jawapan kepada Bahagian A hendaklah ditulis

dalam ruang yang disediakan dalam kertas soalan. 5. Jawapan kepada Bahagian B d

an Bahagian C hendaklah dituliskan pada ruang jawapan yang disediakan dalam kert

as soalan ini. Walau bagaimanapun kertas tulis tambahan sekiranya digunakan, per

lulah diikat bersama dengan buku soalan ini. Dalam jawapan anda, persamaan, gamb

ar rajah, jadual, graf dan cara lain yang sesuai untuk menjelaskan jawapan anda

boleh digunakan. 6. Rajah tidak dilukis mengikut skala kecuali dinyatakan. 7. Ma

rkah maksimum yang diperuntukkan ditunjukkan dalam kurungan pada hujung tiap-tia

p soalan atau Kertas soalan ini mengandungi 32 halaman bahagian soalan. bercetak

8. Penggunaan kalkulator saintifik yang tidak boleh diprogramkan dibenarkan.

Nama pemeriksa Bahagian Soalan 1 2 3 4 5 6 7 8 1 2 3 4 Jumlah Markah Markah Penu

h Diperolehi 4 5 6 7 8 8 10 12 20 20 20 20

A

B

C

Kertas ini mengandungi 28 halaman bercetak

4531/2 SULIT The following information may be useful. The symbols have their usu

al meaning. Maklumat berikut mungkin berfaedah (simbol-simbol mempunyai makna ya

ng biasa) 1. 2. 3. a=

v�u t

16. 17.

v2 = u2 + 2as s = ut +

1 2 at 2

sin i sin r real depth n� apparent depth dalam nyata � dalam ketara n�

18. 4. Momentum = mv 19. 5. 6. F = ma Kinetic energy / Tenaga Kinetik 1 = mv 2 2

Gravitational potential energy / Tenaga Keupayaan graviti = mgh Elastic potenti

al energy / Tenaga keupayaan kenyal =

energy time tenaga Kuasa, P � masa m � = V 1 Fx 2

1 1 1 � + u v f

Linear magnification / Pembesaran linear, m � v =f �v u

20.

7.

21.

� =

ax D

8.

22. 23. 24. 25.

Q = It E = VQ V = IR Power / Kuasa, P = IV g = 10 ms-2

9.

Power, P �

10. 11. 12. 13. 14. 15.

Pressure / Tekanan, P =

F A

26. 27. 28.

Pressure / Tekanan, P = h � g Heat / Haba, Q = mc� Heat / Haba, Q = mlpV = constant / pemalar T

Np Ns

�

Vp Vs

Efficiency / Kecekapan =

I S VS � 100% I PV P

29.

E = mc2

2

4531/2 Section A

Bahagian A

SULIT

(60 marks)

60 markah

Answer all �uestions 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 d

i atasnya.

Diagram 1.2 shows the reading of the measuring instrument when an object is plac

ed on it.

Rajah 1.2 menunjukkan bacaan alat pengukur tersebut apabila satu objek diletakka

n di atasnya.

Diagram 1.1

Rajah 1.1

Diagram 1.2

Rajah 1.2

3

4531/2 1 (a) 1 a) Name the physics �uantity that can be measured by the measurin

g instrument in Diagram 1.1.

SULIT

Namakan kuantiti fizik yang boleh diukur oleh alat pengukur pada Rajah 1.1.

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

...................................... [1 mark] 1 (b) 1 b) Name the type of erro

r produced in Diagram 1.1

Namakan jenis ralat yang terhasil dalam Rajah 1.1

...…………………………………………………………………………………… [1 mark] c) What is the value of error in Diagram 1.1

Berapakah nilai ralat yang terhasil dalam Rajah 1.1

1 (c) 1

……………………………………………………………………………………... [1 mark] d) What is the actual reading of the physical �ua

Berapakah bacaan sebenar kuantiti fizik yang diukur dalam Rajah 1.2?

1 (d) 1

...…………………………………………………………………………………… [1 mark] Total A1 4 2. Diameter 2.1 shows a stone is weigh

am 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.

3.0 N 4.0 N

Object Objek

Diagram 2.1

Rajah 2.1

Diagram 2.2

Rajah 2.2

4

4531/2 2 (a) 1

SULIT 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 d

alam air.

…………………………………………………………………………………… [1 mark] 2 (b) 1 b) Explain why the reading of balance is les

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 den

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 navigati

on.

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

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

5

4531/2 3.

SULIT Diagram 3 shows a wet towel is placed on the forehead of a boy who has hig

h fever.

Rajah 3 menunjukkan tuala yang basah diletakkan di atas dahi seorang budak lelak

i yang mengalami demam panas.

Wet towel

Tuala basah

Diagram 3

Rajah 3

3 (a) 1

a)

What is the meaning of thermal e�uilibrium?

Apakah yang dimaksudkan dengan keseimbangan terma?

………………………………………………………………………….............. [1 mark] b) Explain how a thermal e�uilibrium is ac

Terangkan bagaimana keseimbangan terma tercapai dalam Rajah 3.

3 (b) 2

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

.................. [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 a

nd 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 t

entu air adalah 4 200 J kg-1 oC-1 . Suhu awal tuala adalah 30 oC dan suhu akhir

adalah 38 oC. Hitung jumlah tenaga haba yang telah dibebaskan daripada budak itu

oleh tuala basah.

[2 marks]

6

4531/2 3 (d) 1 d)

SULIT What happens to the final temperature if the water used to wet the towel i

s mixed with ice cubes?

Apakah yang berlaku kepada suhu akhir jika air yang digunakan untuk membasahkan

tuala dicampurkan dengan ketulan ais?

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

Total A3 6

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 mengg

unakan sistem takal. Pekerja itu menggunakan daya 220 N untuk menarik tali sejau

h 0.5 m. Beban tersebut dinaikkan setinggi 0.5 m.

Mass 20 kg

Jisim 20 kg

Diagram 4

Rajah 4

4 (a) 1

a)

What is meant by work?

Apakah yang dimaksudkan dengan kerja?

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

7

4531/2 4(b)(i) 2 b) Calculate the work done

Hitungkan kerja yang dilakukan

SULIT

(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]

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)

…………………………………………………………………………… Total A4 7 ….............………………………………………………………………… [1 mark]

8

4531/2 5.

SULIT Diagram 5.1 and Diagram 5.2 show two balloons A and B exerted with the sam

e force .

Rajah 5.1 dan Rajah 5.2 menunjukkan dua belon A dan B dikenakan daya yang sama.

Finger Jari

Needle Jarum

Balloon A Belon A Diagram 5.1

Rajah 5.1

Balloon B Belon B Diagram 5.2

Rajah 5.2

5 (a) 1

a)

What is meant by pressure?

Apakah yang dimaksudkan dengan tekanan?

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

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

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

b) Based on Diagram 5.1 and Diagram 5.2,

Berdasarkan Rajah 5.1 dan Rajah 5.2

5 (b)(i) 1

(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.

5 (b)(ii) 1

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

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

9

4531/2 5 (b)(iii) 1 (iii)

SULIT Compare the surface area of finger and needle which in contact with the ba

lloon.

Bandingkan luas permukaan jari dan jarum yang bersentuh pada belon.

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

........................... [ 1 mark ] 5 (b)(iv) 1 (iv) Relate the pressure exer

ted 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

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 invol

ved in Diagram 5.1 and Diagram 5.2.

Nyatakan konsep fizik yang terlibat dalam Rajah 5.1 dan Rajah 5.2.

…………………………………………………………………………………… [ 1 mark ] d) State one application of physics’ concept in 5

Nyatakan satu aplikasi konsep fizik dalam 5 (c) dalam kehidupan seharian kita.

5(d) 1

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

................................... [ 1 mark ] Total A5 8

10

4531/2 6.

SULIT 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. T 1 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 T 1 and T2 .

Rajah 6.1 menunjukkan sebuah kapalterbang yang sedang bergerak dengan penerbanga

n yang tetap pada aras yang sama di bawah pengaruh empat daya. Rajah 6.2 menunju

kkan satu beban digantung pada bahagian tengah tali. T 1 dan T2 adalah tegangan

tali dan W adalah berat beban. Garis putus-putus menunjukkan komponen leraian da

ya bagi tegangan T1 and T2.

Diagram 6.1

Rajah 6.1

Diagram 6.2

Rajah 6.2

11

4531/2 6 (a) 1 a) What is meant by weight?

Apakah yang dimaksudkan dengan berat?

SULIT

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

.................................. [ 1 mark } b) Based on Diagram 6.1 and Diagra

m 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

: ………...……………………………………………. : ………………..……..………………………………. [2marks]

horizontally

secara mengufuk

6 (b)(ii) 2

(ii)

compare the forces acting on the load.

bandingkan daya yang bertindak ke atas beban.

Vertically

secara menegak

: ………………………………………………………. : ……………….………………………………………. [2 marks]

horizontally

secara mengufuk

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]

4531/2 6 (e) 1 e) Name the phenomenon shown in Diagram 6.1 and Diagram 6.2.

SULIT

Namakan fenomena fizik yang ditunjukkan dalam Rajah 6.1 dan Rajah 6.2.

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

................................... [1 mark] Total A6 8 7. Diagram 7.1 shows a c

oncrete 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]

13

4531/2 7 (b)(ii) 1 (ii) Calculate the water pressure at Q. (Density of water = 1

000 kg m-3 )

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

SULIT

[2 marks]

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

7 (c)(i) 1

(i)

What is the factor that causes the water to flow from the concrete tank to the w

ater tank in the house?

Apakah faktor yang menyebabkan air boleh mengalir dari tangki konkrit ke tangki

air di rumah? ……………………………………………………………………………… [1 mark]

14

4531/2 . 7 (c)(ii) 2 (ii)

SULIT 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 par

as P. Terangkan mengapa pengalirannya berhenti? ………………………………………………………………………………… .…………………………………

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 mengal

ir secara berterusan ke tangki di rumah kediaman. ………………………………………………………………………………… ………………………………

7 (d)(ii) 1

(ii)

Draw a water tank that can withstand high water pressure .

Lukiskan tangki air yang boleh menampung tekanan yang tinggi.

[1 mark]

Total A7

10

15

4531/2 8. Table 8 shows two types of pot and their characteristics.

Jadual 8 menunjukkan dua jenis periuk dan ciri-cirinya.

SULIT

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] b) Based on Table 8, state suitable characteristic

ng 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

8 (b)(i) 2

(i)

Material for making the pot

Bahan untuk membuat periuk. …………………..……………………………………………………………….

Reason

Sebab …………………………………………………………………………………

[2 marks]

16

4531/2 8 (b)(ii) 2 (ii) Material for making the handle of the pot

Bahan untuk membuat pemegang periuk.

SULIT

………………………………………………………………………………… Reason / Sebab …………………………………………………………………………………

[2 marks] (iii) 8 (b)(iii) 2 Mass of the pot

Jisim periuk. ………………………………………………………………………………… Reason / Sebab …………………………………………………………………………………

[2 marks] 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 8

00 W. Berdasarkan maklumat dalam Jadual 8, hitungkan masa yang diambil untuk men

ingkatkan suhu sebanyak 90°C bagi :

8 (c)(i) 2

(i)

The clay pot.

Periuk tanah liat

8 (c)(ii) 2

[2 marks] (ii) The copper pot

Periuk kuprum

[2 marks] 8 (d) 1 Total A8 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 ...........................

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

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

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

12

[1 mark]

17

4531/2 Section B Bahagian B [20 marks] [20 markah] Answer any one �uestion from

this section. Jawab mana-mana satu soalan daripada bahagian ini. 9

SULIT

Figure 9.1 shows a glass tube with a constriction at the centre. Water from a ta

p is allowed to flow constantly through the glass tube.

Rajah 9.1 menunjukkan tiub kaca dengan jerutan ditengahnya. Air dari pili dibena

rkan mengalir secara seragam melalui tiub kaca.

X

Y

Z

Water in /

Air masuk

Water out /

Air keluar

a

b Diagram 9.1

Rajah 9.1

c

a)

(i)

What is meant by pressure in li�uids?

Apakah yang dimaksudkan dengan tekanan di dalam cecair?

[1 mark] (ii) Using Figure 9.1, compare the diameter of the tube, the pressure t

hat exerted at the point a, b and c, and speed of the water flow at point a, b a

nd c.

Menggunakan Rajah 9.1, bandingkan diameter tiub, tekanan yang dikenakan pada tit

ik 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]

18

4531/2 (iii) Name the physics principle that explains the above situations.

Namakan prinsip fizik yang menerangkan situasi di atas.

SULIT

[1 mark] (iv) Mark in Figure 9.1 the relative water level on each of the tubes l

abeled X, Y, and Z.

Pada Rajah 9.1, tandakan aras air relatif pada setiap tiub berlabel X, Y dan Z.

[1 mark]

Air flow /

Aliran udara

Moving direction /

Arah gerakan

Diagram 9.2

Rajah 9.2

(b)

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. T

erangkan bagaimana aerofoil menghasilkan daya angkat.

[3 marks] c) Diagram 9.3 shows a cargo aeroplane.

Rajah 9.3 menunjukkan sebuah kapal terbang kargo.

Diagram 9.3

Rajah 9.3

19

4531/2

SULIT 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 dilaku

kan pada kapal terbang itu untuk dijadikan sebuah jet berdasarkan aspekaspek ber

ikut:

(i) (ii)

the material used to built the body of the jet

bahan yang digunakan untuk membina badan jet

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]

20

4531/2 10 a)

SULIT Diagram 10.1 shows two trolley of different mass with same material, place

d 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 th

e 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 taka

l licin yang serupa. Jisim pemberat berslot yang menarik kedua-kedua troli dan j

arak troli dari takal adalah sama.

Diagram 10.2 shows simultaneously.

the

position

of

both

trolleys

after

released

Rajah 10.2 menunjukkan kedudukan kedua-dua troli selepas dilepaskan serentak.

Pemberat berslot

Diagram 10.1

Rajah 10.1

Diagram 10.2

Rajah 10.2

21

4531/2 (i) What is meant by resultant force?

Apakah yang dimaksudkan dengan daya paduan?

SULIT

[1 mark] (ii) Using Diagram 10.1 and Diagram 10.2, compare the mass of the troll

ey, the distance moved by the trolley and the velocity of the trolley a few mome

nt 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 deduc

e a relevant physics concept.

Hubungkaitkan antara daya yang memecutkan troli, jisim dan pecutan troli untuk m

enyimpulkan satu konsep fizik yang sesuai.

[5 marks] b) 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 seraga

m boleh dipecutkan dan lakarkan graf untuk menunjukkan pergerakan kereta tersebu

t.

[4 marks] c) 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 membu

at lompatan dalam satu pertandingan.

Diagram 10.3

Rajah 10.3

22

4531/2

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

e long jumper can jump further. Explain your suggestions based on the following

aspects:

Dengan menggunakan konsep fizik yang sesuai, berikan beberapa cadangan dan teran

gkan bagaimana pelompat jauh tersebut boleh melompat lebih jauh Terangkan cadang

an anda berdasarkan aspek-aspek berikut:

(i)

the athelete’s attire

pakaian dan kasut atlet tersebut

(ii)

running and jumping techni�ues

teknik larian dan lompatan

(iii) landing techni�ues

teknik pendaratan

(iv)

landing pitch

tempat pendaratan

[10 marks]

23

4531/2 Section C Bahagian C [20 marks] [20 markah] Answer any one �uestion from

this section. Jawab mana-mana satu soalan daripada bahagian ini. 11 a) (i) What

is meant by temperature?

Apakah yang dimaksudkan dengan suhu?

SULIT

[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 renda

h boleh digunakan untuk memasak makanan dengan cepat.

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

r 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 elekt

rik 240 V 50 W. Rajah 11.1 menunjukkan keluk pemanasan bahan tersebut.

Temperature / o C

Suhu / o C

148

77 32 (i) A B Digram 11.1 C

Rajah 11.1

Estimate the room temperature. Anggarkan suhu bilik. 3 7 12 Diagram 11.1

Rajah 11.1

Time / min

Masa / min

(i)

Estimate the room temperature.

Anggarkan suhu bilik.

[1 mark]

24

4531/2 (ii) What is the melting point of the substance.

Apakah takat lebur bahan itu.

SULIT

[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] c)

Diagram 11.2 shows the design of a car engine radiator.

Rajah 11.2 menunjukkan rekabentuk radiator enjin sebuah kereta.

Diagram 11.2

Rajah 11.2

25

4531/2 Engine and radiator system Enjin dan sistem radiator Number of cooling fi

n blade Bilangan bilah sirip penyejuk Size of fan Saiz kipas Boiling point of co

oling li�uid / o C Takat didih cecair penyejuk / o C 145 86

SULIT Specific heat capacity of cooling li�uid / J kg-1 oC-1 Muatan haba tentu c

ecair penyejuk / J kg-1 oC-1

A B

Low Rendah Medium Sederhana High Tinggi Very high Sangat tinggi

Small Kecil Medium Sederhana Large Besar Extra large Sangat besar Table 11.3

Jadual 11.3

5480 2100

C

100

4200

D

68

480

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 de

termine them most suitable engine and radiator system to be used in a car withou

t causing overheating in the car engine.

Jadual 11.3 menunjukkan ciri-ciri bagi empat jenis enjin dan sistem radiator. Te

rangkan kesesuaian bagi setiap ciri-ciri dalam Jadual 11.3 dan tentukan enjin da

n sistem radiator yang paling sesuai digunakan di dalam kereta tanpa menyebabkan

pemanasan melampau pada enjin kereta.

[10 marks]

26

4531/2 12 a)

SULIT Diagram 12.1 shows a tank consisting of a li�uid P. A ray of light is shon

e from air into the tank and refraction occurs.

Rajah12.1 menunjukkan sebuah tangki mengandungi cecair P. Sinar cahaya dilihat d

ari udara ke dalam tangki dan pembiasan berlaku.

Air /

Udara

X Y Li�uid P

Cecair P

Tank /

Tangki

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 li�uid P.

Bandingkan kelajuan cahaya dalam udara dan di dalam cecair P.

[1 mark] (iii) Li�uid P is then replaced by li�uid Q with the angle X unchanged.

It is noticed that for the angle Y for li�uid Q is bigger than that of li�uid P

. Compare the refractive index of li�uid P and li�uid Q. Explain your answer.

Cecair P kemudiannya digantikan dengan cecair Q dengan sudut X tidak berubah. Di

nyatakan bahawa sudut Y untuk cecair Q adalah lebih besar daripada cecair P. Ban

dingkan indeks biasan cecair P dan cecair Q. Terangkan jawapan anda.

[3 marks] b) Four students are provided with materials as shown in Table 12.2. T

hey are not allowed to choose other lenses and cardboards other than those provi

ded 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 disedi

akan sahaja tetapi dibenarkan untuk memendekkan kadbod yang dibekalkan jika mere

ka perlu berbuat demikian.

27

4531/2 Student

Pelajar

SULIT Power of lenses provided

Kuasa kanta yang disediakan

Length of cardboard tube provided / cm

Panjang tiub kadbod yang disediakan / cm

Rita Keevan Anuar Siti

+10 D, +10 D, -10 D +20 D, +5 D +20 D, +2 D, -12 D +10 D, -5 D

50 45 40 30

Explain the characteristics of an astronomy telescope with normal adjustment. Wi

th that, identify which student is able to build an astronomy telescope with nor

mal adjustment using the materials provided. Explain your choice.

Terangkan cirri-ciri bagi sebuah teleskop astronomi dengan penyesuain normal. De

ngan itu, kenalpasti pelajar yang manakah berupaya untuk membina teleskop astron

omi dengan penyesuain normal menggunakan bahan-bahan yang disediakan. Jelaskan p

ilihan anda.

[10 marks] c) 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. De

termine 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 PAPERKERTAS SOALAN TAMAT

28

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

531/2) Section A QUESTION 1 1 (a)

mass

Mark/marks 1 1 1 1

TOTAL

(b)(i) Zero error (ii) 6 g (c)

24 g

4

QUESTION 2 2 (a) (b)

Archimedes’ Principle Upthrust/buoyant force acts on the object

1 1

(c) (d)

1.0 = V x 1000 x 10 V = 1.0 x 10-4 m3 Plimsoll line on the ship / safety line on

the boat TOTAL

1 1 1 5 1 1 1

QUESTION 3 3 (a) (b)

Net heat flow is zero // final temperature is e�ual/ rate of heat flow is e�ual

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 e�ual / no heat loss Heat energy, Q = m c � = 0.3 (4200) ( 38 – 30 ) = 10080 J (with unit) Decrease

(c)

1 1 1 6 1

(d)

TOTAL 4(a) QUESTION 4 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

(b)(i) Work done = Force X displacement = 220 X 0. 5 = 110 J (ii) Work done = mg

h = 20 x 10 x 0.5 = 100 J

1 1 1 1

1

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

ome work is wasted to overcome friction / energy loss TOTAL QUESTION 5 5 (a) Pre

ssure is perpendicular force acting on a unit area/force

P(Pressure) = Force, F/ Area,A (b)(i) Balloon B /Diagram 5.2

1 1 7 1 1 1 1 1 1 1 1

(ii) Pressure of needle is higher/greater than finger/vice versa (iii) The surfa

ce area of needle is smaller than finger/ vice versa (iv) As the pressure increa

ses, the surface area decreases/ (v) Pressure increase (c) (d)

Pressure 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 larg

e area/ suitable item

TOTAL QUESTION 6 6(a)

Weight is the gravitational force acts an object.

8

1 1 1 1

(b) (i) lift is e�uals to weight // lift = weight

drag is e�uals to thrust // drag = thrust

(ii)

(c) (d) (e)

Sum of the vertical components of the tensions in the string is e�uals in magnit

ude to the weight hanging // vertical components of the tension in the string (T

1 and T2) are e�ual to W // W = T1+T2 � The tension of string pulling to he left is e�uals to the tension of string pulling to the right // horizontal components

of the tension in the strings (T1 and T2) are e�ual and opposite the airplane is

moving at a constant speed while the object is at rest any object at rest or mo

ving at constant speed, the resultant force acting is e�ual to zero // both case

s the resultant force is zero E�uilibrium of forces

�

1 1 1 1

TOTAL QUESTION 7 7 (a) depth (b) (i) Pressure at Q higher than pressure at P

8 1 1

2

(ii)

P

= hρg = 5mx1000 kg m-3x10ms-2 = 50 000 kg m-2s-2

1 1 1

(c) (i)

Different in pressure.

(ii) Level P same as level house tank. Therefore pressure at P same as pressure

in house tank (d) (i)

Place the concrete tank higher than house tank

1 1 1 1

use electrical pump (ii)

1

TOTAL 8 (a) (b)(i) QUESTION 8 The �uantity of heat needed to increase the temper

ature of 1 kg of the substance by 1°C The material is copper This is because coppe

r have low specific heat capacity The material is polymer This is because polyme

r have high specific heat capacity Lower mass It is easy to handle Pt = mcӨ t = mcӨ

P = 3.5 x 900 x 90 800 = 354.4 s (ii) Pt = mcӨ t = mcӨ P = 2.5 x 390 x 90 800 = 109.

7s The most suitable is copper pot TOTAL

10 1 1 1 1 1 1 1

(ii)

(iii)

(c)(i)

1 1

1 1 1 12

(d)

3

NO 9

a)(i)

SECTION B SUGGESTED ANSWER

Pressure (P) in li�uid at a depth (h)is given by P = hρg, ρ = Density of the li�uid

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 pre

ssure that exerted at point a, b and c correctly - Pressure a > Pressure c > Pre

ssure b Compare the speed of the water flow at point a, b and c correctly - Spee

d b > Speed c > Speed a Relate the pressure and the speed to deduce a relevant p

hysics concept - The higher the pressure, the lower the speed of the water flow

(iii) Name the physics principle correctly - Bernoulli’s principle

MARKS

1

(ii)

1 1 1

1

1

(iv) Water in / Air masuk Water out / Air keluar

a

(b)

b

c

1 1

� 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 The material used to built the body of the jet The shape of the jet’s bo

dy The engine power Detecting system The safety system for the pilot Characteris

tics Use material of high melting point // low density The body of jet is more a

erodynamic Use high power engine Fix with radar system Use ejected seat / parach

ute during emergency Explanations/Reasons So that it does not melt at high tempe

rature // light // easy to lift up To reduce air friction To produce higher acce

leration // produce higher momentum To detect other objects around To protect th

e pilot when the plane get burns / crash

1

(c)

1,1

1,1

1,1

1,1

Accept any possible answers. TOTAL

1,1

20

4

10

(a)(i)

State the meaning correctly Sum of forces Compare the mass of the trolley correc

tly - The mass of the trolley in 10.1 is smaller// vice versa (10.1<10.2) Compar

e the distance moved by the trolley correctly - The distance moved by the trolle

y 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 great

er the mass, the smaller the acceleration Name the physics law correctly - Newto

n Second Law of Motion

1

(ii)

1 1

1

1 1

b)

� 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. � -1

1 1 1 1

Velocity, ms

Time, s

(c)

Aspects Attire Shoes Running and jumping techni�ues Landing techni�ues Landing p

itch

Characteristics Wearing tight attire Shoes with spike Bending body posture while

running // Jump more high Landing with minimum contact area with the sand Sand

Explanations/Reasons Reduce air resistance / surface area Increase grip To reduc

e air resistance / surface area // Increase the landing time Increase the distan

ce from the jumping plank and the landing point Reduce impulsive force 1,1 1,1 1

,1

1,1

1,1

Accept any possible answers. 11

(a)(i) (ii) 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) -1 o -1 = 400 J kg C 1 1 1 1 1 1 1 1

(b)(i) (ii) (iii)

(iv) (c)

Pt = ml, (50)(7-3)(60) = (0.5)l l = 2.4 x 104 Jkg-1 Aspects Number of cooling fi

n blade Size of fan Boiling point of cooling li�uid Characteristics Have more fi

n blades Reasons More exposed area to lose heat faster Lose heat faster The li�u

id can absorb heat without producing much gas, thus the pressure in the engine w

ill not unduly high // not easily to boil when get hot More heat will be absorbe

d

1 1

1,1

Size of the fan should be big Boiling point of the cooling li�uid should be high

1,1

1,1

Specific heat Specific heat capacity capacity of of cooling li�uid cooling li�ui

d should be high 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

Accept any possible answers. TOTAL 12

(a)(i) Refraction is the phenomenon of light ray deviating from its incident dir

ection when it travels from one medium to another. // the bending of light due t

o change of light velocity when the light travels from one medium to another. Sp

eed of light in Li�uid P is less than speed of light in air. � Light is refracted more in li�uid Q than li�uid P. � This shows that li�uid Q is denser medium than li�uid P. � Hence the refractive index of li�uid Q is bigger than li�uid P. � � � � � � � � � �onomy telescope consists of two convex lenses. The two lenses have different pow

er. The objective lens has a smaller power than the eyepiece. At normal adjustme

nt, the distance between the two lenses is the same as the sum of the focal leng

ths of the two lenses. Rita cannot build the telescope because she has two conve

x 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. K

eevan 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.

20

1

(ii) (iii)

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

(b)

(c)

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

TOTAL

20 6

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

Tingkatan: …………………

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. K

ertas soalan ini adalah dalam dwibahasa. 2. Soalan dalam bahasa Inggeris mendahu

lui soalan yang sepadan dalam Bahasa Melayu. 3. Calon dibenarkan menjawab keselu

ruhan atau sebahagian soalan sama ada dalam bahasa Inggeris atau bahasa Melayu.

Untuk kegunaan Pemeriksa Markah Markah Bahagian No. Penuh Diperolehi 1 A 2 12 16

4. Calon perlu menjawab semua soalan dalam Bahagian A dan satu soalan daripada s

oalan Bahagian B.

3 B 4

12

12

Jumlah

Kertas soalan ini mengandungi 13 halaman bercetak

4531/3

SULIT

Section A Bahagian A Answer all �uestions in this section. Jawab semua soalan da

lam 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 measur

e the diameter, D, of the pencils.

Sani menjalankan satu eksperimen untuk mengkaji hubungan antara diameter, D, bag

i pensel dengan bilangan penselnya, n. Angkup vernier digunakan untuk mengukur d

iameter, 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 pen

cils, n=2.

Rajah 1.2 menunjukkan bacaan, d, pada angkup vernier apabila bilangan pensel, n=

2.

n=2 d = ………………… cm

Diagram 1.2

Rajah 1.2

The procedure of measurement is repeated with the number of 2

4531/3

SULIT

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

re 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 a

ngkup vernier yang sepadan ditunjukkan pada Rajah 1.3, 1.4, 1.5 dan 1.6.

n=4 d = …………………… cm Diagram 1.3

Rajah 13.

n=6 d = ………………… cm Diagram 1.4

Rajah 1.4

n=8 Diagram 1.5

Rajah 1.5

d = ………………… cm

3

4531/3

SULIT

n = 10 Diagram 1.6

Rajah 1.6

d = …………………. cm

(a)

For the experiment, identify

Bagi eksperimen itu, kenalpasti

(i)

the manipulated variable

pembolehubah manipulasi

___________________________________________________ (ii) the responding variable

pembolehubah bergerak balas

[1mark]

___________________________________________________

[1mark]

(iii)

the constant variable

pembolehubah dimalarkan

___________________________________________________ (b) (i) Based on Figure 1.1,

determine the zero error, X.

Berdasarkan Rajah 1.1, tentukan ralat sifar, X.

[1mark]

X = __________________ cm (ii) Based on Figure 1.2, 1.3, 1.4, 1.5 and 1.6, deter

mine the diameter of the pencils, d. The actual diameters of the pencil,D, are d

etermined using the formula Berdasarkan Rajah 1.2, 1.3, 1.4, 1.5 dan 1.6. tentuk

an diameter bagi pensel,d. Diameter sebenar pensel, D ditentukan dengan mengguna

kan formula D=d-X where X is the zero error on the vernier callipers.

di mana X ialah ralat sifar pada angkup vernier.

4

4531/3

SULIT

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.

[6 marks] On the graph paper on page 6, plot a graph of D against n. (c)

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

(d)

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.

[5 marks]

_________________________________________________________ [1 mark]

5

4531/3

SULIT

Graph of D against n

Graf D melawan n

6

4531/3

SULIT

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 2 of h against t 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 2.1.

2

yang diperolehi adalah seperti dalam Rajah

7

4531/3

SULIT

(a)

Based on the graph h against t on page 7,

Berdasarkan graf h melawan t pada halaman 7 ,

2

2

(i)

state the relationship between h and t2,

nyatakan hubungan antara h dan t 2 .............................................

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

[1 mark]

(ii)

determine the time taken, t by the sphere when dropped from a height, h = 44.0 c

m 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 and

a menentukan nilai t. t = …………………… [3 marks]

(b)

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.

[3 marks] The motion e�uation 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.

where g is the gravitational acceleration.

Dimana g adalah pecutan graviti.

(c)

h = ut +

½gt

2

(i)

State the initial velocity, u of the sphere.

Nyatakan nilai halaju awal, u sfera tersebut. ..................................

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

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

[1 mark]

8

4531/3

SULIT

(ii)

By using the gradient of the graph in (b) and e�uation in (c), calculate the gra

vitational acceleration, g .

Menggunakan nilai kecerunan graf dalam (b) dan persamaan dalam (c) , hitung pecu

tan graviti, g

[3 marks] (d) State one precaution that should be taken in this experiment to im

prove the accuracy of the readings in the experiment. Nyatakan satu langkah berj

aga-jaga yang perlu diambil untuk memperbaiki kejituan bacaan dalam eksperimen i

ni.

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

[1 mark]

[ 1 m a r k ]

9

4531/3

SULIT

Section B [12 marks/markah] Answer one �uestion only.

Jawab mana-mana satu soalan

3

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

Mass of mother = 65kg Jisim ibu = 65 kg

The diagram above shows a boy and her mother each sit on similar swings. when th

ey are given a push, it is found that the mother will be more difficult to be mo

ved.

Rajah di atas menunujukkan seorang budak perempuan dan ibunya duduk di atas buai

an 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. State one appr

opriate hypothesis that could be investigated. Nyatakan satu hipotesis yang bole

h disiasat. With the use of apparatus such as hacksaw blade, plasticine, Gclam a

nd 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 dinya

takan di 3(b)

[1mark]

(b)

[1mark]

(c)

In your description, state clearly the following:

Dalam penerangan anda, jelaskan perkara berikut:

(i)

The aim of the experiment

Tujuan eksperimen

10

4531/3

SULIT

(ii) (iii) (iv) (v)

Variables in the experiment

Pembolehubah dalam eksperimen

The list of apparatus and materials

Senarai radas dan bahan

Arrangement of the apparatus

Sususan radas

The procedure of the experiment which includes one method of controlling the man

ipulated variable and one method of measuring the responding variable.

Prosedur eksperimen yang mesti termasuk satu kaedah mengawal pembolehubah dimani

pulasikan dan satu kaedah mengukur pembolehubah bergerak balas

(vi) (vii)

The way to tabulate the data

Cara untuk menjadualkan data

The way to analyse the data.

Cara untuk menganalisis data

[10 marks]

11

4531/3

SULIT

4.

Figure 4 shows same amount of heat is supplied to two metal pots (a) and (b) whi

ch have different volume of water, 1000 cm³ and 2000 cm³ water respectively. After f

ive minutes, water in metal pot (a) started to boil but water in metal pot (b) i

s still not boiling.

Rajah 4 menunjukkan kuantiti haba yang sama dibekalkan kepada dua periuk logam i

aitu 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 loga

m (a) mula mendidih tetapi air di dalam periuk logam (b) masih belum mendidih

(a)

State one suitable inference. Nyatakan satu inferens yang sesuai. State one appr

opriate hypothesis that could be investigated. Nyatakan satu hipotesis yang bole

h disiasat. With the use of apparatus such a beaker, an immersion heater, thermo

meter 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)

[1mark]

(b)

[1mark]

(c)

In your description, state clearly the following:

Dalam penerangan anda jelaskan perkara berikut:

(i) (ii)

The aim of the experiment

Tujuan eksperimen

Variables in the experiment

Pembolehubah dalam eksperimen

12

4531/3

SULIT

(iii) (iv) (v)

The list of apparatus and materials

Senarai radas dan bahan

Arrangement of the apparatus

Sususan radas

The procedure of the experiment which includes one method of controlling the man

ipulated variable and one method of measuring the responding variable.

Prosedur eksperimen yang mesti termasuk satu kaedah mengawal pemboleh ubah diman

ipulasikan dan satu kaedah mengukur pembolehubah bergerak balas

(vi) (vii)

The way to tabulate the data

Cara untuk menjadualkan data

The way to analyse the data.

Cara untuk menganalisis data

[10 marks]

END OF QUESTION PAPER KERTAS SOALAN TAMAT

13

SKEMA JAWAPAN KERTAS 3 PEPERIKSAAN AKHIR TAHUN 2011 TINGKATAN EMPAT NEGERI MELAK

A Section A Question 1 (a) (i) 1 (ii) 1 (iii) 1 (b) (i) 1 (ii)

Sub mark

Mark Scheme Able to state the manipulate variable Number of pencils Able to stat

e the responding variable Diameter of pencils / the reading of vernier callipers

Able to state the constant variable Diameter of one pencil Able to state of the

value of x -0.04 cm Able to tabulate n, d and D. 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 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 valu

e of D correct 6 - All values for d and D consistent Able to draw a complete gra

ph of D and n Tick (�) based on the following aspects:

Total mark 1 1 1 1 6

6

(c) � � � ��

5

A – Show D on Y axis and n on the X axis B – State the units of the variables correc

tly C – Both axis are marked with uniform scale D – All five points are plotted (3 p

oint 1 tick) E – Best straight line is drawn F – Show the minimum size of graph at l

east 5 x 4 (2 cm x 2 cm) s�uare (counted from the origin until the furthest poin

t) Number of � 7 5–6 3–4 2 1 Score 5 4 3 2 1 1 16

(d) TOTAL

Able to state the correct relationship between D and n D is directly proportiona

l to n // D � n

Question 2

Sub Marks 1 1

Answer h is directly proportional to t2// h α t2 1. Show on graph with appropriate

vertical/horizontal line corresponding to 44 cm. t2 = 0.088s t = 0.297s (2 d.p

or 3 d.p)

Total Marks 1 3

(a)(i) (ii)

1 1 (b) 1

2. 3.

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

stitution(values from student’s triangle) 3. Answer with correct unit 500 cms-2 u

= 0 m/s 1. Show that h = m t2 2. Substitution of the gradient ½ g = 500 3.

Answerwith

3

1 1 (c) (i) (ii) 1 1 1 1 (d) 1

4

correct unit.1000 cms-2 or 10 ms-2 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. Total mar

ks

12

Section B Question 3(a) Sub Mark Scheme mark 1 Making the right inference The ti

me taken for body to start move depends on its mass // The inertia of the body d

epends on its mass // The period of oscillation depens on its mass (b) 1 Buildin

g 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/ine

rtia The larger the mass, the bigger the inertia Total marks 2 1 Total mark 1

2 marks

(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 Stating t

he correct variables

1

(ii) 1 1 1

3 Manipulated variable : The mass of plasticine, m Responding variable : The per

iod 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 List of appropriate apparatus and material Hacksaw blade, stop

watch, plasticine/slotted weight, Gclamp, balance (iv) 1 Describing set up of th

e apparatus 1

(iii)

1

G-clamp plasticine

Hacksaw blade

v)

Stating the procedure of the experiment 1. The hacksaw blade is clamp horizontal

y / diagram 1 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 S

tate the method to measure the responding variable 4. The time taken for 20 comp

lete 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 o

f period against mass 3

3

1

1

vi)

1

Tabulating data Show table with mass and period Mass of Time for 20 plasticine,

m /g oscillations, t / s 50 100 150 200 250

1 Period of oscillation, T/s

viii)

1

Analysing data T/s

1

m/g or plot a graph of period against mass Maximum marks Total marks 10 marks 12

marks

Question 4(a)

Sub Mark Scheme mark 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 Building an appropriate hypothesis The hig

her the mass/volume, the smaller the change in its temperature Total marks

Total Marks 1

(b)

1

2 marks 1

(c)(i)

1

Stating the aim of the experiment To study the relationship between mass/volume

and the change in temperature of water Stating the correct variables Manipulated

variable : mass of water, m/ volume, V Responding variable : change in temperat

ure, Ө Fixed variable : time of heating // density of li�uid List of appropriate a

pparatus and material Water, 500 ml beaker, sttirrer, thermometer, immersion hea

ter, electronic balance and stop watch

(ii) 1 1 1 1

1

(iii)

1

4

(iv)

1

Describing set up of the apparatus

1

v)

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 t

he manipulated variable 2. 50g water in a beaker is weighted 3. Record the initi

al 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 fin

al temperature, Өƒ after 5 minutes 6. The change of temperature, Ө is recorded by Ө = Өƒ - Өо

peat 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 temperat

ure against mass Tabulating data Show table with mass and change in temperature

Mass of Change in water,m /g temperature, Ө/ °C 50 100 150 200 250 Analysing data Ө/ °C

3

1

1

vi)

1

1

viii)

1

1

m/g or Plot graph change in temperature against mass Maximum marks Total marks 5

10 marks 12 marks

79950674-fizik-f4-123-akt-2011

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