fizik kertas 1, 2, 3 percubaan spm 2007 mrsm

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MAKTAB RENDAH SAINS MARA

SPM TRIAL EXAMINATION 2007 PEPERIKSAAN PERCUBAAN SPM 2007

PHYSICS FIZIK

Paper 1 Kertas 1

One hour fifteen minutes

Satu jam lima-belas minit

DO NOT OPEN THIS QUESTION BOOKLET UNTUL YOU ARE TOLD TO DO SO 1. This paper is written in English and bahasa Malaysia.

Kertas soalan ini adalah dalam dwibahasa. 2. The question in English is written on top while the bahasa Malaysia version is below.

Soalan di atas adalah dalam bahasa Inggeris dan soalan dalam bahasa Malaysia terdapat di bawahnya.

3. Candidates are required to read the information on page 2.

Calon dikehendaki membaca maklumat di halaman 2.

This question booklet consists of 41 printed pages and 3 unprinted pages Kertas solan ini mengandungi 41 halaman bercetak dan halaman tidak bercetak.

[Turn over

4531/1 Physics Paper 1 Aufgust 2007 1 ¼ hr

© 2007 Copyright Bahagian Pendidikan dan Latihan (Menengah) MARA

www.myschoolchildren.comMuat turun (percuma) kertas soalan lain di :

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INFORMATION FOR CANDIDATES MAKLUMAT UNTUK CALON 1. This question paper consists of 50 questions.

Kertas soalan ini mengandungi 50 soalan.

2. Answer all questions. Jawab semua soalan.

3. Answer each question by darkening the correct space on the answer sheet.

Jawab setiap soalan dengan menghitamkan ruangan yang betul pada kertas jawapan. 4. Darken only one space for each question.

Hitamkan satu ruangan sahaja bagi setiap soalan.

5. If you wish to change your answer, erase the darkened mark that you have made Then darken the space for the new answer.

Sekirannya anda hendak menukarkan jawapan, padamkan tanda yang telah dibuat. Kemudian hitamkan jawapan yang baru.

6. The diagram in the questions provided are not drawn to scale unless stated. Gambar rajah yang mengiringi soalan tidak dilukiskan mengikut skala kecuali dinyatakan.

7. You may use a non-programmable scientific calculator. Anda dibenarkan menggunakan kalkulator saintifik yang tidak boleh diprogram.

8. A list of formulae is provided on page 4.

Satu senarai rumus disediakan di halaman 4.

2


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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. t

uva −=

2. asuv 222 +=

3. 2

21 atuts +=

4. Momentum = mv

5. maF =

6. Kinetic energy (Tenaga kinetik)= 2

21 mv

7. Potential energy (Tenaga keupayaan)= mgh

8. Density (Ketumpatan), Vm

=ρ

9. Pressure (Tekanan), P= hρg

11. Pressure (Tekanan), AFP =

12. Heat (Haba), θmcQ =

13. Heat, (Haba), Q = ml

14. = constant (pemalar)

15. E = mc2

16. λfv =

17. Power (Kuasa) , P =

18. = +

19. λ =

20. Refractive index (indeks biasan), rin

sinsin

=

21. Q = It

22. V = IR

23. Power (Kuasa), P = IV

24.

25. Efficiency (Kecekapan) =

26. g = 10 m s-2

NS = VS NP = VP

IS VS IP VP

x 100%

PV T

a x D

energy (tenaga) time (masa)

1 1 1 f u v

4



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Each question is followed by three, four or five options. Choose the best option for each question then darken the correct space on the answer sheet. Tiap-tiap soalan diikuti oleh sama ada tiga, empat atau lima pilihan jawapan. Pilih satu jawapan yang terbaik bagi setiap soalan dan hitamkan ruangan yang betul pada kertas jawapan anda.

Which of the following is a vector quatity? Yang manakah di bawah ini merupakan kuantiti vektor?

1

A

B

C

D

Mass of a ball Jisim sebiji bola

Age of the earth Usia bumi

Number of students in a class Bilangan pelajar dalam sebuah kelas

Earth’s gravitational pull on our body Tarikan graviti bumi ke atas badan kita

Above is a set of readings obtained in an experiment to study resistance in a wire conductor.

Which of the following is true about the data? Di atas adalah satu set bacaan untuk satu eksperimen mengkaji kerintangan dawai.

Antara pernyataan berikut, yang manakah benar tentang data itu?

2

A Wire diameter is measured using a micrometer screw gauge Diameter dawai diukur menggunakan tolok skru mikrometer

B The smallest division of the ammeter is 0.02 A Skala terkecil pada ammeter ialah 0.02 A

C The smallest division of the voltmeter is 1 V Skala terkecil pada voltmeter ialah 1 V

Turn over

Wire diameter = 1.40 mm Diameter dawai

Electric current = 0.6 A Arus

Potential Difference = 4.7 V Beza keupayaan

Conductor Konduktor


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3 The Figure shows a ball released from P to Q. Rajah menunjukkan sebiji bola dilepaskan dari P ke Q.

Which of the following graphs shows the correct velocity-time relationship for the motion of the ball? Graf yang manakah menunjukkan hubungan halaju- masayang betul bagi pergerakan bola?

A B

C D

ball bola P

Q Floor lantai

velocity halaju

time masa

velocityhalaju

time masa

velocityhalaju

time masa

velocityhalaju

time masa


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4 A force is applied to an object.

Which of the following cannot occur? Daya dikenakan ke atas suatu objek

Antara yang berikut, yang manakah tidak akan berlaku? A The object speeds up

Jasad semakin laju

B The shape of the object changes Bentuk jasad berubah

C The mass of the object decreases Jisim jasad berkurang

D The object changes its direction of motion Arah gerakan jasad berubah

5 A 150 g ball is moving at a speed of 45 m s -1 when it is hit by a baseball bat. The ball rebounds at a speed of 55 m s -1 and its time of contact with the bat is 0.04 s. Sebiji bola dengan jisim 150 g sedang bergerak pada kelajuan 45 m s -1 bila dipukul dengan kayu pemukul bola lisut. Bola melantun pada kelajuan 55 m s -1 dan masa sentuhan dengan kayu pemukul ialah 0.04 s.

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

A 37.5 N

B 60.0 N

C 375.0 N

D 540.0 N

E 3 750.0 N

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45 m s -1

55 m s -1


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6 Which of the following safety features in a vehicle is not designed to protect the driver during collisions? Antara ciri keselamatan kenderaan berikut, yang manakah tidak betujuan untuk melindungi pemandu semasa pelanggaran?

A Reinforced passenger compartment Ruang/Sangkar penumpang yang tegar

B Side bars in vehicle doors Galang/Bar sisi dalam pintu kenderaan

C Shock absorbers Penyerap hentakan

D Air bags Beg udara

7 The diagrams below show the forces acting on a block.

Which block experiences the highest net force? Rajah-rajah di bawah menunjukkan daya-daya yang bertindak ke atas bungkah.

Bungkah manakah mengalami daya paduan yang paling besar?

A

B

C

D

4N 2N

4N 4N

4N 4N 4N

8N 4N 4N


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8 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 menunjukkan satu lif yang digerakkan oleh sebuah motor elektrik. Lif dan penumpangnya mempunyai jumlah jisim 500 kg dan lif bergerak ke atas pada kelajuan 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 1 250 W

D 2 000 W

E 20 000 W

9 A moving car has kinetic energy. When the car stops, its kinetic energy becomes zero.

What becomes to its kinetic energy? Sebuah kereta yang sedang bergerak mempunyai tenaga kinetik. Bila kereta berhenti, tenaga kinetiknya menjadi sifar.

Apa terjadi kepada tenaga kinetik kereta?

A Lost to the surroundings Hilang ke persekitaran

B Transformed to potential energy Berubah menjadi tenaga keupayaan

C Used to stop the car Telah digunakan untuk memberhentikan kereta

D Transformed to heat Bertukar kepada tenaga haba

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lift lif

motor

4 m s -1


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10 P and Q are two spring arrangements made of identical springs. P and Q are stretched using similar loads. P dan Q, adalah dua sususan spring yang dibuat daripada spring yang serupa. P dan Q di regang menggunakan pemberat yang serupa.

Which graph shows the relationship between the load weight, F and the extension of spring, x, for P and Q? Graf manakah menunjukkan hubungan antara berat pemberat, F dan pemanjangan spring, x, untuk P dan Q?

A F

x

P Q

C F

x

P, Q

B F

x

Q

P

P Q

Similar Loads Pemberat serupa


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11. Which would be the least likely to sink into soft ground? Yang manakah antara berikut yang paling mungkin tidak terbenam ke dalam tanah yang lembut? A A fully-loaded lorry with six wheels

Lori dengan enam tayar dan penuh muatan

B A fully-loaded lorry with four wheels Lori dengan empat tayar dan penuh muatan

C An empty lorry with six wheels Lori dengan enam tayar dan tanpa muatan

D An empty lorry with four wheels Lori dengan empat tayar dan tanpa muatan

12. A tall container has three equal size holes drilled on its side. P, Q and R. When the container is filled with water, the water squirts out from the holes as shown below. Sebuah tin yang tinggi ditebuk dengan tiga lubang yang sama saiz di sisi. Apabila tin di isikan dengan air, aAir memancut keluar melalui lubang-lubang tersebut sepertiditunjukkan di bawah.

At which hole is the pressure highest? Lubang yang manakah mempunyai tekanan yang paling tinggi?

A P

B Q

C R

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13 A leaking rubber suction pump is pressed against a smooth wall as shown in (a). When released, the suction pump does not stick to the wall, as shown in (b). Satu pam penyedut yang bocor ditekan kepada dinding yang licin seperti di bawah. Apabila dilepaskan,dDidapati pam penyedut tersebut tidak melekat pada dinding.

The suction pump does not stick to the wall because Pam penyedut tidak melekat pada dinding kerana

A the atmospheric pressure is equal to the pressure inside the pump tekanan atmosfera adalah sama dengan tekanan udara di dalam penyedut

B the atmospheric pressure is less than the pressure inside the pump tekanan atmosfera adalah kurang daripada tekanan udara di dalam penyedut

C the atmospheric pressure is more than the pressure inside the pump tekanan atmosfera adalah lebih tinggi daripada tekanan udara di dalam penyedut


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14 The Figure shows a hydraulic system with one small piston and one large piston. Rajah menunjukkan bahagian sebuah sistem hidrolik yang mempunyai satu omboh kecil dan satu omboh yang besar. The maximum weight that can be lifted up by a force of 800 N is Berat maksimum yang boleh diangkat oleh daya 800 N ialah

A 1 000 N

B 2 000 N

C 5 000 N

D 8 000 N

E 20 000 N

[Turn over

Force = 800 N Daya Cross-sectional Area = 100 cm2

Luas keratan rentas

Cross-sectional area = 4 cm2 Luas keratan rentas Load

Beban


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15. An egg sinks in liquid A but floats when placed in liquid B. Sebiji telor tenggelam sepenuhnya di dalam cecair A tetapi terapung bila diletakkan di dalam cecair B.

Which is the correct inference for the above observation? Manakah diantara berikut merupakan inferens yang betul bagi pemerhatian di atas?

A Liquid A is denser than liquid B Cecair A lebih tumpat daripada cecair B.

B Liquid A is denser than the egg Cecair A lebih tumpat daripada telor.

C The buoyant force of liquid B on the egg is equal to the weight of the egg. Daya tujah ke atas yang dialami oleh telor di dalam cecair B adalah sama dengan berat telor.

D The volume of liquid A displaced by the egg is smaller than the volume of the egg. Isipadu cecair A yang disesarkan oleh telor adalah lebih kecil berbanding dengan isipadu telor.

Liquid B Cecair B

Liquid A Cecair A

Egg Telor


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16

The Figure below shows a racing car. Rajah di bawah menunjukkan sebuah kereta lumba.

The physics principle that contributes to the stability of the car as it speeds is Prinsip fizik yang menyumbang pada kestabilan kereta itu apabila ia memecut ia bergerak laju ialah

A Pascal’s Principle Prinsip Pascal

B Bernoulli’s Principle Prinsip Bernoulli

C Archimedes’s Principle Prinsip Archimedes

D Aerodynamic Principle Prinsip Aerodinamik

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17

Figure (a) below shows a thermometer placed in a beaker of acetone and its reading is θ0. When the thermometer is taken out, an icy layer forms around the thermometer as shown in Figure (b) and the its reading is θ1. Rajah di bawah menunjukkan satu termometer yang diletakkan di dalam bikar yang mengandungi aseton dan bacaan thermometer ialah θ0 . Bila thermometer dikeluarkan dari bikar, satu lapisan ais terbentuk di termometer seperti pada Rajah (b) dan bacaan termometer ialah θ1.

FIGURE (a) FIGURE (b) Compare θ0 and θ1. Bandingkan θ0 dan θ1.

A θ1 = θ0 B θ1 > θ0 C θ1 < θ0

Thermometer Termometer θ0 Acetone Aseton

θ1

Icy layer Lapisan ais


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18

A blister on the skin caused by steam is more painful than the blister caused by boiling water. This is because Kesan melecur akibat terkena stim lebih menyakitkan berbanding kesan melecur akibat terkena air panas. Ini disebabkan

A steam has a higher temperature stim mempunyai suhu yang lebih tinggi

B steam takes a longer time to lose the heat stim lebih lambat menghilangkan habanya

C steam has a high specific latent heat of vaporization stim mempunyai haba pendam tentu pengewapan yang lebih tinggi

D steam has a high specific heat capacity stim mempunyai muatan haba tentu yang lebih besar

19

Calculate the amount of heat required to convert 1g of water at 30oC to steam at 100oC.

[Specific heat capacity of water = 4200 J kg-1 oC-1 Specific latent heat of vaporization of water = 2.26 X 106 J kg-1 ] Hitungkan jumlah haba yang diperlukan untuk menukarkan 1 g air pada 30 oC kepada stim pada 100 oC .

[Muatan haba tentu air = 4200 J kg-1 oC-1 Haba pendam tentu pengewapan air = 2.26 X 106 J kg-1 ]

A 294 J

B 1 441 J

C 2 260 J

D 2 554 J

E 2 664 J

Boiling water Air mendidih

Steam Stim

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20 Two objects A and B are in contact as shown below. Dua objek A dan B bersentuhan seperti di bawah.

When thermal equilibrium is reached, Apabila keseimbangan terma tercapai,

A the specific heat capacity of A and B are equal muatan haba tentu A dan B adalah sama

B the latent heat of A and B are equal tenaga haba A dan jisim B adalah sama

C the temperatures of A and B are equal suhu A dan B adalah sama

21 Which graph does not illustrate Boyle’s Law ? Graf yang manakah tidak mewakili Hukum Boyle?

A B

A B

C D


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22 Which of the following is the fixed variable in a Charles’ Law experiment? Pembolehubah manakah yang dimalarkan dalam eksperimen Hukum Charles ?

A Temperature Suhu

B Volume Isipadu

C Pressure Tekanan

23 A ray of light is directed onto a plane reflector as shown below. Rajah 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 diantara sudut tuju, i dengan sudut pantulan, r.

A i = r

B i > r

C i < r

D i ≠ r

[Turn over

i r

Plane reflector Pemantul satah

Reflected ray Sinar pantulan

Incident ray Sinar tuju


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24 Figure (a) shows a ray of light passing from medium X to medium Y while Figure (b) shows a ray of light passing from medium X to medium Z. Rajah (a) menujukkan satu sinar cahaya merambat dari medium X ke medium Y manakala Rajah (a) menujukkan satu sinar cahaya merambat dari medium X ke medium Z.

Arrange the optical density of the media, in ascending order. Susun ketumpatan optik medium dalam urutan menaik.

A Z, X, Y

B Y, X, Z

C Z, Y, X

D X, Y, Z

(a) (b)

Medium X Medium X

Medium Y Medium Z


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25 The diagram shows the pathway of a light ray from air to a glass prism. Rajah menunjukkan lintasan sinar cahaya merambat dari udara ke satu prisma kaca.

What is the critical angle of the glass prism? Berapakah sudut genting bagi prisma kaca?

A 10°

B 40°

C 50°

D 70°

E 80°

[Turn over

60°

80°

40°

Glass Kaca

Air Udara

50°


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26 A light ray is passed through a concave lens.

Satu sinar cahaya melalui sebuah kanta cekung .

Which of the following represents the correct path for the light ray? Antara laluan berikut, yang manakah menunjukkan laluan sinaran yang betul?

A X → Y → A

B X → Y → B

C X → Y → C

A

B

C

F Focal point Titik fokus

Focal point Titik fokus

X Y


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27 The Figure below shows the image obtained observed using a lens. Rajah di bawah menunjukkan imej yang dihasilkan menggunakan suatu kanta.

Which lens and object arrangement produces the above observation? [F is the focal point of the lens] Susunan kanta dan objek yang manakah akan menghasilkan pemerhatian seperti di atas?. [ F ialah titik fokus kanta]

A B C D

[Turn over

Lens Kanta

Object Objek

F F

Lens Kanta

Object Objek

F F

Lens Kanta

Object Objek

F F

Lens Kanta

Object Objek

F F


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28 Which of the following wave property changes when interference of waves occur?

Yang manakah di antara berikut berubah apabila berlaku interferens gelombang? A Speed

Kelajuan

B Wavelength Panjang gelombang

C Amplitude Amplitud

D Direction of propagation Arah rambatan

29 Someone can be heard coming round a corner before he can be seen.

Which of the following best explains the above situation? Seseorang yang datang dari sebalik selekoh bangunan boleh didengar sebelum dia boleh dilihat.

Yang manakah di antara berikutpaling sesuai untuk menerangkan situasi di atas?

A light travels faster than sound cahaya bergerak lebih laju dari bunyi

B sound travels faster than light bunyi bergerak lebih laju dari cayaha

C light is refracted less by air compared to sound cahaya kurang dibiaskan oleh udara berbanding bunyi

D sound has a longer wavelength than light bunyi mempunyai panjang gelombang yang lebih besar dari cahaya


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30 The Figure below shows a cross-section of a ripple tank. A dipper vibrating at the water surface produces water waves . Rajah menunjukkan keratan rentas sebuah tangki riak. Sebuah penggetar bergetar di permukaan airmenghasilkan gelombang air.

Compare the velocity of the water waves at point X, v x and point Y, v y. Bandingkan halaju gelombang air di titik X, v x dan di titik Y, v y.

A v x > v y.

B v x = v y.

C v x < v y.

[Turn over

Direction of vibration of dipper Arah getaran penggetar

Vibrating Dipper

Penggetar Water

Air

Glass plate Plat kaca

X Y


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31

Figures show an observation in an experiment conducted using ripple tank. Gambarajah menunjukkan pemerhatian dalam eksperimen yang telah dijalankan menggunakan tangki riak. In which figure is the effect of diffraction most obvious? Pada Rajah manakah corak belauan yang paling jelas?

32 Which of the following features is linked to the pitch of the sound that we hear? Ciri manakah dari yang berikut dikaitkan dengan kelangsingan bunyi yang kita dengar? A Amplitude of the sound wave

Amplitud gelombang bunyi

B Frequency of the sound wave Frekuensi gelombang bunyi

C Speed of the sound wave Kelajuan gelombang bunyi

D Distance from sound source Jarak dari puncabunyi

A B C


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32 The Figure below represents the fringe pattern obtained in a double-slit experiment using monochromatic light . The two slits are 0.03 cm apart and the distance from the double slit plate to the screen is 1.5 m. Rajah mewakili corak pinggir hasil dari eksperimen dwi-celah dengan menggunakan cahaya monokromatik. Saiz celahan adalah 0.03 cm dan jarak di antara dwi-celah dengan skrin ialah 1.5 m. Calculate the wavelength of the monochromatic light used in the experiment. Kira panjang gelombang cahaya monkromatik yang digunakan dalam eksperimen ini.

A 5.0 x 10-7 m

B 6.0 x 10-7 m

C 7.0 x 10-7 m

D 7.5 x 10-7 m

E 8.0 x 10-7 m

33 Choose the correct electromagnetic waves according to their applications Tentukan gelombang electromagnet yang betul mengikut kegunaannya.

Television Televisyen

Satellite Satelit

Remote Control Kawalan jauh

A Visible light Cahaya nampak

Radio waves Gelombang radio

Microwaves Gelombang mikro

B Infrared Infra merah



C Radio waves Gelombang radio


Infrared Infra merah

D Visible light Cahaya nampak

Infrared Infra merah


[Turn over

15 mm


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34 The Figure below shows two electric charges placed near each other.

What is the direction of the electric field at points X, Y and Z? Rajah di bawah menunjukkan dua cas elektrik ditempatkan berdekatan antara satu sama lain.

Apakah arah medan elektrik di titik X, Y dan Z?

X Y

Z

A → ← →

B → ← ←

C ← → →

D ← → ←

+X Y Z

Positive charge Negative charge Cas positif Cas negatif


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35 A simple circuit is set up as shown in the Figure below. The brightness of the light

bulb changes as the rheostat is adjusted. Satu litar ringkas seperti Rajah di bawah disediakan. Kecerahan mentol berubah apabila reostat dilaraskan.

Which graph best represents the relationship between potential difference, V across the bulb and current, I that flows through it? Graf yang manakah mewakili hubungandi antara beza keupayaan, V merentasi mentol dan arus, I melaluinya?)

[Turn over

V

I

V

I

V

I

V

I

A B

C D

Cell (Sel)

Bulb Mentol

Switch Suis

Rheostat Reostat


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36 The Figure below shows a circuit containing three resistors connected in series and in parallel. Rajah menunjukkan satu litar yang mengandungi tiga perintang yang di sambung secara sesiri dan selari.

Which ammeter, has the smallest reading? Ammeter yang manakah mempunyai nilai bacaan yang terkecil?)


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37 The Figure shows a graph of voltage, V against current, I for a circuit which uses a dry cell for its power supply.. Rajah (a) graf beza keupayaan, V melawan arus, I. untuk satu litar elektrik yang menggunakan sel kering sebagai punca kuasa,.

Based on the graph, what is the electromotive force, E and the internal resistance, r of the dry cell? Berdasarkan graf, apakah daya gerak elektrik, E dan rintangan dalam, r sel kering tersebut?

E (V) r (Ω)

A. 0.9 0.50

B. 0.9 0.75

C. 1.5 0.50

D. 1.5 1.20

[Turn over

1.5

0.9

V/V

I/A 0 1.2


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38 The motor shown below can lift an 0.8 kg load to a height of 2 m from the ground in 2 s. Sebuah motor di bawah mengangkat beban berjisim 0.8 kg kepada ketinggian 2 m dari aras bumi dalam masa 2 s.

If the current flow in the motor is 1.0A, what is the reading of the voltmeter? ( assuming the motor is 100% efficient.) Jika arus yang mengalir melalui motor ialah 1.0 A, berapakah bacaan voltmeter? (andaikan motor itu mempunyai kecekapan 100%.)

A 2.0 V

B 2.5 V

C 3.0 V

D 4.0 V

E 8.0 V

A

V

0.8 kg

2 m


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39 When the switch in the circuit is closed, paper clips are attracted to the soft iron rod as shown below. Apabila suis dalam litar di bawah ditutup,klip kertas akan tertarik kepada rod besi lembut. The number of paper clips attracted to the soft iron rod can be increased by Bilangan klip kertas yang melekat pada ters besi lembut boleh ditingkatkan dengan

A Increasing the current in the circuit Menambah arus di dalam litar

B Increasing the resistance in the rheostat Menambah perintang rheostat

C Deceasing the number of turns in the solenoid Mengurangkan bilangan lilitan solenoid

D Replacing the battery with alternating current. Menggantikan bateri dengan arus ulang alik

[Turn over

A Solenoid

Paper clips Klip kertas

Rheostat Reostat

Switch Suis

Dry cell Sel kering

Soft iron rod Rod besi lembut


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40 A current-carrying conductor is placed in a magnetic field, as shown below. Satu konduktor yang membawa arus diletakkan didalam medan magnet seperti di Rajah di bawah.

Which of the following shows the correct pattern of the interaction between two magnetic field? Manakah diantara berikut menunjukkan corak yang betul hasil saling tindakan diantara dua medan magnet?

A B

C D

Magnet

Current-carrying conductor Konduktor berarus

Magnet


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41 A transformer loses some energy as heat.

This energy loss can be reduced by the following except Sebuah transformer hilang sebahagian tenaga elektrik sebagai temaga haba.

Kehilangan tenaga ini boleh dikurangkan dengan cara berikut kecuali A using a soft iron core

menggunakan satu teras besi lembut

B using thinner copper wire for the coils. menggunakan wayar kuprum yang halusl untuk gegelung

C winding the secondary and primary coils on top of each other. melilitkan gegelung primer dan sekunder di atas satu sama lain

D using thin iron sheets glued with thin layers of insulation between them for the core menggunakan kepingan besi nipis yang dilekatkan dengan gam daripada bahan penebat sebagai teras

42 In the transmission of electrical power, it is important to reduce the energy loss.

Which of the following will reduce energy loss during transmission? Dalam penghantaran tenaga elektrik, adalah penting untuk mengurangkan kehilangan tenaga.

Yang manakah antara berikut akan mengurangkan kehilangan tenaga semasa penghantaran? A High voltage transmission

Voltan penghantaran yang tinggi

B Low voltage transmission Voltan penghantaran yang rendah

C High current transmission Arus penghantaran yang besar

[Turn over


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43 The Figure below shows some of the important componets in a cathode-ray tube. Rajah di bawah menunjukkan sebahagian daripada komponen penting dalam sebuah tiub sinar katod.

Which change in voltage would cause the bright spot on the screen to move upwards as shown in the above diagram? Perubahan voltan manakah akan menyebabkan kedudukan tompok cahaya di skrin bergerak ke atas seperti ditunjukkan pada rajah di atas ?

A Decreasing V1 Mengurangkan V1

B Increasing V1 Menambah V1

C Decreasing V2 Mengurangkan V2

D Increasing V2 Menambah V2

+

-

+V1

+-

electron beam alur elektron

Screen Skrin

Top Atas

Bottom Bawah

+V2

Top Atas Bright spot Tompok cerah Bottom Bawah

Front View Of Screen Pandangan Hadapan Skrin


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44 When a student sets up a circuit as shown in the Figure below, the bulb does not light up. Bila seorang pelajar memasang litar seperti di Rajah di bawah, di dapati mentol tidak menyala.

Which of the following will make the bulb light up? Yang manakah antara langkah berikut akan menyalakan mentol?

A Inserting a fuse in the circuit Memasang fius

B Reversing the battery connection Menyonsangkan sambungan bateri

C Changing the power supply to a 12V battery Menukar bekalan kuasa kepada bateri 12 V

D Reversing the bulb connection Menyonsangkan sambungan mentol

Turn over

6V

6V, 12W


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45 In which circuit will the bulb light up when the switch is closed?

Dalam litar manakah mentol akan menyala apabila suis ditutup?

A

B

C

D

1 kΩ

2 kΩ

Light bulb Mentol

Switch/suis

Light bulb mentol

Switch/suis

2 kΩ

10 kΩ

1 kΩ

Light bulb mentol

Switch/suis

2 kΩ

1 kΩ

10 kΩ

2 kΩ

Light bulb mentol

Switch/suiss

1 kΩ

10 kΩ


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46 The Figure below shows a combination of several logic gates. Rajah di bawah menunjukkan kombinasi beberapa get logik.

When output Q is 0, input X and Y are Apabila output Q adalah 0, input X dan Y adalah

X Y

A 0 1

B 1 1

C 0 0

D 1 0 47

A uranium atom has 92 protons and 146 neutrons.

What is the notation for this atom? Atom uranium mempunyai 92 proton dan146 neutron.

Apakah perwakilan untuk atom ini?)

A

B

C

D

[Turn over

X

Y

Q


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41

48 The Figure below shows two types of radiation, P and Q, passing through a magnetic

field. (Rajah di bawah menunjukkan dua jenis sinaran P dan Q melalui medan magnet. )

P and Q are P dan Q adalah P Q

A β α

B γ α

C α β

D γ β

Magnetic field direction: Into the paper Arah medan magnet: Ke dalam kertas

P

Q

Radioactive source sumber radioaktif


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49 A company produces plastic discs. The thickness of discs is automatically controlled by using radioactive rays and a detector, as shown in the Figure below. Sebuah syarikat membuat cakera plastik. Sinaran radioaktif dan pengesan digunakan untuk mengawal mengawal ketebalan cakera itu secara automatik. Susunan alat ini adalah seperti pada Rajah di bawah.

Which of the following radioactive sources should be used with this detector? Antara yang berikut, sumber radioaktif manakah patut dipilih untuk alat ini?

Radiation Sinaran

Half-life Separuh hayat

A α 1 day 1 hari

B α 60 years 60 tahun

C β 1 day 1 hari

D β 60 years 60 tahun

[Turn over

Wheels Roda

Disc Kepingan cakera

Detector Pengesan

Radioactive source Sumber radioaktif

meter


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43

50 When an atom bomb explodes, the energy released is equivalent to the loss in mass which is 4.0 x 10 -3 kg.

What is the total energy released in the explosion? [ speed of light = 3.0 x 108 m s -1] Apabila sebuah bom atom meletup, tenaga yang dibebaskan adalah bersamaan dengan kehilangan jisim sebanyak 4.0 x 10 -3 kg.

Berapakah jumlah tenaga yang dibebaskan oleh bom atom itu?

[ halaju cahaya = 3.0 x 108 m s -1] A 1.2 x 10 5 J

B 6.0 x 10 5 J

C 1.2 x 10 6 J

D 3.6 x 10 13 J

E 3.6 x 10 14 J

END OF QUESTION PAPER KERTAS SOALAN TAMAT


4531/2 CONFIDENTIAL

1 4531/2

Angka Giliran …..................................................................

Identity Card No.: ……………………………………..….

Name : ………………………………………………….…

College No. : ………………. Class : …………….


SPM TRIAL EXAMINATION 2007

PHYSICS

Paper 2

Two hours and thirty minutes

DO NOT OPEN THIS BOOKLET UNTIL

YOU ARE TOLD TO DO SO. 1. Write down your name, college no. and

class in the space provided. 2. The questions are written in English and

bahasa Malaysia. 3. Candidates are required to read the

information on page 2 and 3.

This booklet consists of 28 printed pages [ Turn over

Examiner’s Code

Section Question Marks Score

1 4

2 5

3 6

4 7

5 8

6 8

7 10

A

8 12

1 20

B 2 20

3 20

C 4 20

Total

CONFIDENTIAL 4531/2 PHYSICS Paper 2 August 2007 2 ½ hours

©2007 Copyright Bahagian Pendidikan dan Latihan (Menengah) MARA


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INFORMATION TO CANDIDATES (MAKLUMAT UNTUK CALON) 1 This question paper consists of three sections: Section A, Section B and Section C.

(Kertas soalan ini mengandungi tiga bahagian: Bahagian A, Bahagian B dan Bahagian C.) 2 Answer all questions in Section A. Write your answers for Section A in the spaces

provided in the question paper. (Jawab semua soalan daripada Bahagian A. Jawapan kepada Bahagian A hendaklah ditulis dalam ruang yang disediakan dalam kertas soalan.)

3 Answer one question from Section B and one question from Section C. Write your

answers for Section B and Section C on the paper provided by the invigilators. Answer questions in Section B and Section C in detail. Answers should be clear and logical. Equations, diagrams, tables, graphs and other suitable methods can be used to explain your answer. (Jawab satu soalan daripada Bahagian B dan satu soalan daripada Bahagian C. Jawapan kepada Bahagian B dan Bahagian C hendaklah ditulis dalam kertas yang disediakan oleh pengawas peperiksaani. Anda diminta menjawab dengan lebih terperinci untuk Bahagian B dan Bahagian C. Jawapan mestilah jelas dan logik. Persamaan, gambar rajah, jadual, graf dan cara lain yang sesuai untuk menjelaskan jawapan anda boleh digunakan.)

4 The diagrams in the questions provided are not drawn to scale unless stated.

(Rajah yang mengiringi soalan tidak dilukiskan mengikut skala kecuali dinyatakan.) 5 The marks allocated for each question or sub-section of a question are shown in

brackets. (Markah yang diperuntukkan bagi setiap soalan atau ceraian soalan ditunjukkan dalam kurungan di hujung setiap soalan atau ceraian soalan.)

6 If you wish to cancel any answer, neatly cross out the answer.

(Sekiranya anda hendak membatalkan sesuatu jawapan, buat garisan di atas jawapan itu.) 7 A list of formulae is provided on page 4 and page 5.

(Satu senarai rumus disediakan di halaman 4 dan halaman 5.) 8 You may use non-programmable scientific calculator. However, steps in calculation

must be shown. (Anda dibenarkan menggunakan kalkulator saintifik yang tidak boleh diprogram. Walau bagaimanapun, langkah mengira perlu ditunjukkan. )

9 The time suggested to complete Section A is 90 minutes, Section B is 30 minutes and

Section C is 30 minutes. (Masa yang dicadangkan untuk menjawab Bahagian A ialah 90 minit, Bahagian B ialah 30 minit dan Bahagian C ialah 30 minit.)

10 Attach all your answers together and hand them in at the end of the examination.

(Lekatkan semua kertas jawapan dan serahkan di akhir peperiksaan.)

[Turn over


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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. tsv =

2. t

uva −=

3. asuv 222 +=

4. 2

21 atuts +=

5. Momentum = mv

6. maF =

7. Kinetic energy (Tenaga kinetik ) = 2

21 mv

8. Potential energy (Tenaga keupayaan) = mgh

9. Vm

=ρ

10. Pressure (Tekanan ), AFP =

11. Presxsure (Tekanan), ghP ρ=

12. Heat (Haba), θmcQ =

13. =TpV constant (pemalar )

14. λfv =

15. Power (Kuasa),

16. vuf111

+=

17. uvm =

18. rin

sinsin

=

19. ItQ =

20. IRV =

21. Power (Kuasa), IVP =

22. g = 10 m s -1

23. Atmospheric pressure at sea level (Tekanan atmosfera pada aras laut) = 1 x 10 5 Pa

Energy (tenaga) Time (masa)

P =


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For Examiner’s

Use

Bahagian A

[ 60 marks /60 markah]

Answer all questions

Jawab semua soalan

You are advised to spend 90 minutes on this section Anda dinasihatkan memperuntukkan 90 minit untuk bahagian ini

1 Figure 1.1 shows a measuring cylinder.

Rajah 1.1 menunjukkan sebuah silinder penyuka.

1(a) (a) What is the physical quantity measured by the measuring cylinder? Apakah kuantiti fizik yang disukat oleh silinder penyukat? ….…………………………………………………………………………....

[1 mark ]

1(b) (b) Mark ( ) the correct position for the eyes when taking the reading on Figure 1.1. Tandakan ( ) kedudukan mata yang betul ketika mengambil bacaan pada Rajah 1.1

[1 mark ]

1(c) (c) State the smallest division on the scale. Nyatakan nilai senggatan terkecil skala itu. ….………………………………………………………………………......…

[ 1 mark ]

1(d)

Total

(d) What is the reading of the measuring cylinder ? Apakah bacaan pada silinder penyukat? ...........................................................................................................................

[ 1 mark ]

Section A

7 cm3

6 cm3

Measuring cylinder Silinder penyukat

Water Air

FIGURE 1.1 / RAJAH 1.1


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For Examiner’s

Use

For Examiner’s

Use

2 Figure 2.1 shows an experimental set-up where a ticker timer is used to study the

type of motion for a trolley moving down a friction-compensated runway. The frequency of the ticker timer is 50 Hz. Rajah 2.1 menunjukkan sususan radas di mana satu jangka masa detik digunakan untuk mengkaji jenis gerakan sebuah troli yang bergerak menuruni landasan terpampas geseran. Frekuensi jangkamasa detik ialah 50 Hz.

(a) State the type of current used by the ticker timer. Nyatakan jenis arus yng digunakan oleh jangka masa detik. ………………………………………..………………………………………

[1 mark ]

2(a)

(b) Figure 2.2 shows a strip of ticker tape obtained from the motion of the trolley. Rajah 2.2 menunjukkan satu keratan pita detik yang dihasilkan oleh gerakan troli tersebut.

(i) What is the time interval between two consecutive dots? Apakah sela masa di antara 2 titik berturutan ? …………………………………………………………………………

[1 mark ]

[Turn over

2(b)(i)

5 cm

direction of motion arah gerakan

FIGURE 2.2 /RAJAH 2.2


Wooden block Bungkah kayu

Power supply Pembekal kuasa

Ticker timer Jangka masa detik Trolley

Ttroli

Friction-compensated runway Landasan terpampas geseran

Ticker tape Pita detik


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2(b)(ii)

(ii) State the type of motion of the trolley. Nyatakan jenis gerakan troli. ……………………………………………………………..………....

[1 mark ]

2(b)(iii)

Total

(iii) Calculate the velocity of the trolley. Kirakan halaju troli itu.

[2 marks ]


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For Examiner’s

Use

3 Figure 3 shows a student pulling a bag with a force F of 120 N. Rajah 3 menunjukkan seorang pelajar sedang menarik sebuah beg dengan daya F , 120 N.

(a) What is meant by force? Apakah yang dimaksudkan dengan daya ? ............….……………………………………………………………………

[ 1 mark ]

3(a)

(b) On Figure 3 , mark and label the horizontal component Fx and the vertical component Fy . of the force F. Pada Rajah 3, tanda dan labelkan komponen daya mengufuk, Fx dan komponen daya menegak, Fy. untuk daya F.

[ 1 mark ]

3(b)

(c) Calculate the magnitude of Fx and Fy. Hitungkan magnitud Fx dan Fy . (i) Fx (ii) Fy.

[ 4 marks ][Turn over

3(c)(i)

3(c)(ii)

Total

FIGURE 3 /RAJAH 3

30º


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For Examiner’s

Use

4 Figure 4 shows a circuit which consists of several logic gates . Rajah 4 menunjukkan sebuah litar yang mengandungi beberapa get logik

4(a)(i)

(a) (i) Name the logic gates labeled P and Q. Namakan get logik yang berlabel P dan Q. P : ....................................................................................................... Q : ......................................................................................................

[ 2 marks]

4(a)(ii)

(ii) State the function of logic gate X. Nyatakan fungsi get logik X. ………………………………………………………………………

1 mark ].

(b) (i) Based on Figure 4 , complete the Truth Table below. Berdasarkan pada Rajah 4, lengkapkan Jadual Kebenaran di bawah.

4(b)(i)

[ 3 marks ]

Input Output

A B C

0 0

0 1

1 0

1 1

Truth Table /Jadual Kebenaran

FIGURE 4 /RAJAH 4

C

A

B

P

Q

X


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(ii) Draw the symbol of the logic gate which is equivalent to output C.

Lukis symbol get logik yang setara dengan output C.

[ 1 mark ]

4(b)(ii)

Total

[Turn over

For Examiner’s

Use


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5 Figures 5.1 and 5.2 represent the radioactive decay of radium-226 and carbon-14

respectively. Rajah 5.1 dan 5.2 masing-masing mewakili pereputan radioaktif bagi unsur radium-226 dan karbon-14.

Ra Rn + He + Energy

226.025406 222.017574 4.002603 7.81 x 10 -13 J


C N + Beta particle + Energy zarah Beta Tenaga 14.003242 14.003074 2.51 x 10 -14 J


5(a)(i) (a) (i) Why does the parent nuclide decay? Mengapakah nukleus unsur asal mereput? …………………………………………………………………………..

[1 mark ]

5(a)(ii) (ii) Compare the total mass in a. m. u. before and after the decay process. Bandingkan jumlah jisim dalam u. j. a. sebelum dan selepas proses reputan berlaku. .................................................................................................................

[1 mark ]

a.m.u u.j.a.

a.m.u u.j.a.

a.m.u u.j.a.

a.m.u u.j.a.

a.m.u u.j.a.

Negligible massJisim amat kecil

For Examiner’s

Use


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(iii) Explain the reason for the observation in 5 (a) (ii). Nyatakan sebab untuk pemerhatian 5 (a)(ii). .................................................................................................................

[1 mark]

5(a)(iii)

(iv) Write an equation to show the relationship between mass defect, m,

speed of light, c and energy, E. Tuliskan satu persamaan untuk menunjukkan hubungan antara cacat jisim, m, halaju cahaya, c dan tenaga, E. .................................................................................................................

[1mark ]

5(a)(iv)

(v) State the relationship between the mass defect and the energy released. Nyatakan hubungan di antara cacat jisim dengan tenaga yang dibebaskan. .................................................................................................................

[1mark ]

5(a)(v)

(b) The half-lifes of radium-226 and carbon-14 are 1 600 years and 5 600 years respectively. Setengah hayat bagi radium-226 dan karbon-14 ialah masing-masing 1600 tahun dan 5 600 tahun.

(i) What is meant by half-life? Apakah yang dimaksudkan dengan separuh hayat? .................................................................................................................

[1mark]

5(b)(i)

(ii) Which radioactive material will decay at a faster rate? Explain your answer. Unsur radioaktif yang manakah yang mereput pada kadar yang lebih tinggi ? Terangkan jawapan anda. …………………………………………………………………….....… …………………………………………………………………….....…

[2 marks ]

5(b)(ii)

Total

[Turn over

For Examiner’s

Use


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For Examiner’s

Use

6 In Figure 6.1(a), a boy kicks an inflated ball and the ball stops at A. In Figure 6.1(b), the boy kicks a deflated ball with the same impulse and the ball stops at B. Rajah 6.1(a) menunjukkan seorang budak menendang sebuah bola yang keras dan bola itu berhenti di A.. Rajah 6.1(b) menunjukkan budak itu menendang bola yang lembik dengan mengenakan impuls yang sama dan bola itu berhenti di B.

6(a)

(a)

What is meant by impulse? Apakah yang dimaksudkan dengan impuls? …………………………………………………………………………….........

[1 mark ]

6(b) (b) State one observation about the distances travelled by the ball OA and OB. Nyatakan satu pemerhatian tentang jarak gerakan bola OA dan OB. ……………………………………………………………………………........

[1 mark ]

O A FIGURE 6.1(a) /RAJAH 6.1(a)

O B FIGURE 6.1(b) /RAJAH 6.1(b)


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For Examiner’s

Use

(c) (i) Name the type of force that acts on the ball while it is being kicked.

Namakan daya yang bertindak ke atas bola ketika ianya ditendang.. …………………………………………………………………..……

[1 mark ]

6(c)(i)

(ii) Compare the time of impact between the foot and the ball in Figures 6.1(a) and 6.1(b). Bandingkan masa tindakbalas di antara kaki dan bola bagi Rajah 6.1(a) dan Rajah 6.1(b). ………………………………………………………………………..

[1 mark ]

6(c)(ii)

(iii) State the relationship between the time of impact and the force stated in 6(c)(i). Nyatakan hubungan di antara masa tindakbalas dan daya yang dinyatakan dalam 6(c)(i). ..............................................................................................................

[1 mark ]

6(c)(iii)

(iv) Suggest one way to increase the distance OB in Figure 6.1 (b). Cadangkan satu cara untuk menambah jarak OB dalam Rajah 6.1(b). ………………………………………………………………………

[1 mark ]

6(c)(iv)

(d) Why is a soft mattress placed on the landing area in the high jump event? Explain your answer. Mengapakah sebuah tilam yang lembut diletakkan di tempat mendarat dalam acara lompat tinggi? Jelaskan jawapan anda. ……………………………………………………………………………...... ……………………………………………………………………………......

[2 marks ]

[Turn over

6(d)

Total


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7 Figure 7.1 shows water waves approaching a barrier in a ripple tank. The

frequency of the vibrator is 25 Hz. Rajah 7.1 menunjukkan gelombang air menuju satu penghadang dalam sebuah tangki riak. Frekuensi penggetar ialah 25Hz.


7(a)(i)

(a) (i) In Figure 7.1, draw the waves and its direction of propagation after it hits the barrier. Dalam Rajah 7.1, lukiskan gelombang serta arah perambatannya setelah terkena penghadang..

[ 2 marks ]

7(a)(ii)

(ii) Compare the wavelength and speed of the waves before and after it hits the barrier. Bandingkan panjang gelombang dan laju gelombang selepas terkena penghadang. ................................................................................................................

[ 1 mark ]

(b) Traditional fishermen often have difficulties to detect shoals of fish. To overcome this problem, they use a modern technology to locate the shoals of fish. Nelayan tradisi menghadapi kesukaran untuk mengesan kumpulan ikan. Untuk mengatasi masalah ini, mereka menggunakan satu kaedah moden untuk mengesan kumpulan ikan.

7(b)(i)

(i) Name one modern technology which fishermen use to detect shoals of fish. Namakan satu teknologi moden yang nelayan gunakan mengatasi masalah ini. ................................................................................................................

[1 mark ]

(ii) State two reasons why this technology is used instead of conventional sound waves. Nyatakan dua sebab mengapa technologi ini digunakan dan bukannya gelombang bunyi biasa. ……………………………………………………………………………………….… ................................................................................................................ ................................................................................................................

[ 2 marks ]

Barrier Penghadang

For Examiner’s

Use


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For Examiner’s

Use

(iii) Explain the technique used by this technology to detect a shoal of fish. Terangkan kaedah yang digunakan oleh teknologi ini untuk mengesan kumpulan ikan. ...................................................................................................................... ...................................................................................................................... ......................................................................................................................

[ 2 marks ]

7(b)(iii)

Figure 7.2 shows the trace displayed on the screen of a cathode ray oscilloscope. A pulse is transmitted from a boat into the water to detect the presence of fish shoals. Rajah 7.2 menunjukkan surihan pada skrin sebuah osiloskop sinar katod. Satu denyutan dihantar dari sebuah bot untuk mengesan kumpulan ikan.

(iv) The time base of the oscilloscope in Figure 7.2 is set at 0.4 s cm-1 and the speed of sound in water is 1 200 m s-1.

Calculate the distance between the boat and the shoal of fish. Dasar masa bagi osiloskop dalam Rajah 7.2 disetkan pada 0.4 s cm-1 dan laju bunyi dalam air ialah 1 200 m s-1.

Hitungkan jarak di antara bot dengan kumpulan ikan.

[ 2 marks ]

7(b)(iv) Total

[Turn over

Transmitted pulse Denyutan yang

dipancarkan

Reflected pulse Denyutan pantulan

6 cm



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8 Figure 8.1 shows a liquid column XY supporting an object of mass 1 kg on a light

piston. Rajah 8.1 menunjukkan satu turus cecair XY menyokong satu objek berjisim 1 kg di atas sebuah omboh yang ringan.


8(a)(i) (a) (i) Why is liquid used in this system instead of gas? Mengapakah cecair bukan gas yang digunakan dalam sistem ini? ………………………………………………………………....………

[1 mark ]

8(a)(ii) (ii) If the density of the liquid is 800 kg m-3, calculate the liquid pressure at Y. Jika ketumpatan cecair adalah 800 kg m-3, hitungkan tekanan cecair di Y.

[ 2 marks ]

8(a)(iii) (iii) What is the magnitude of pressure acting on the piston? Berapakah magnitud tekanan yang bertindak ke atas omboh? ..........................................................................................................................

[1 mark ]

Liquid Cecair

X

Y

1 kg 0.5 m

For Examiner’s

Use

Piston Omboh


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(iv) State the change in pressure, if any, when a wider XY tube is used. Explain your answer. Nyatakan perubahan pada tekanan , jika ada, apabila tiub XY yang lebih lebar digunakan.Terangkan jawapan anda. …………………………………………………………………………………………. ................................................................................................................ ................................................................................................................

[2 marks ]

8(a)(iv)

The system in Figures 8.2 and 8.3 can be used to lift vehicles.

When valve A is opened, valve B is closed and highly compressed air from the compressor exerts a force on the input piston. Sistem pada rajah 8.2 dan 8.3 boleh digunakan untuk mengangkat kenderaan.

Apabila injap A dibuka, injap B ditutup dan udara yang termampat dari pemampat mengenakan daya terhadap omboh input.



[Turn over

Compressor Pemampat

valve A valve B injap A injap B

Output piston /Omboh output Area/Luas = 2 x 10 3 cm2

Liquid Cecair

Input piston /Omboh input Area/Luas = 1 x 10 2 cm2

Compressed air Udara termampat

Compressor

valve A valve B

Output piston Area = 4 x 10 3 cm2

Liquid

Input piston Area = 1 x 10 2 cm2

Compressed air

For Examiner’s

Use


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(b) The compressed air exerts a maximum force of 500 N on the input piston

of both hydraulic lifts in Figure 8.2 and 8.3. Udara yang termampat mengenakan daya maksimum 500 N terhadap omboh input untuk kedua-dua pengangkat hidraulik pada Rajah 8.2 dan 8.3.

8(b)(i)

(i) Calculate the pressure acting on the input piston in Figure 8.2. Hitungkan tekanan yang bertindak pada omboh input pada Rajah 8.2.

[2 marks ]

8(b)(ii)

(ii) Calculate the forces acting at the output piston for both hydraulic lifts. Hitungkan daya yang bertindak pada omboh output pada kedua-dua pengangkat hidraulik.

[ 2 marks ]

8(b)(iii)

(iii) Based on your answers in 8(b)(ii), which is the more suitable hydraulic lift to raise a van of mass 1800 kg ? Berdasarkan jawapan anda pada 8(b)(ii), pengangkat hidraulik yang manakah yang lebih sesuai untuk mengangkat sebuah van berjisim1800 kg? …………………………………………………………..………....

[1 mark ]

8(c)

Total

(c) Explain how the vehicle can be lowered down, after the repair work is done. Terangkan bagaimana kenderaan tersebut dapat diturunkan setelah kerja membaiki siap dijalankan.

……………………………………………………………………….........…

[1 mark ]

For Examiner’s

Use


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[20 marks /20 markah]

Answer any one question Jawab mana-mana satu soalan

9 (a) Figures 9.1 and 9.2 show two types of metal block of the same mass

being heated using similar heaters for 10 minutes. Both metal blocks have the same initial temperatures of 30 oC. The specific heat capacity of copper is 387 J kg-1 oC -1 and 900 J kg-1 oC -1 for aluminium. Rajah 9.1 dan 9.2 menunjukkan dua jenis logam yang sama jisim dipanaskan selama 10 minit menggunakan pemanas yang serupa. Kedua- dua bungkah logam tersebut mempunyai suhu awal 30 oC. Muatan haba tentu bagi kuprum ialah 387 J kg-1 o C -1 dan 900 J kg-1 oC -1 bagi aluminium .


FIGURE 9.2 /RAJAH 9.2 [Turn over

Section B Bahagian B


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(i) “The specific heat capacity of copper is 387 J kg-1 oC-1”?

What is meant by the statement above? “Muatan haba tentu bagi kuprum ialah 387 J kg-1 oC –1” Apakah yang dimaksudkan dengan pernyataan diatas? [1 mark ]

(ii) Using Figures 9.1 and 9.2, compare the increase in temperature and the specific heat capacity of the metals used.

Relating the heat supplied, the heat absorbed and the specific heat capacity of the metals, deduce a relevant physics concept. Menggunakan Rajah 9.1 and 9.2, bandingkan kenaikan suhu kedua dua bahan itu dengan muatan haba tentu bahan tersebut .

Hubungkaitkan antara haba dibekalkan, haba diserap oleh bahan dan muatan haba tentu bahan itu untuk menyimpulkan satu konsep fizik yang sesuai

[5 marks ]

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

[1 mark ]

(b) A student standing near the beach could feel the cool breeze from the sea on a hot day.

Explain how the cool breeze from the sea occurs. Seorang pelajar yang berdiri di tepi pantai dapat merasai tiupan bayu sejuk dari laut walau pun hari sangat panas.

Terangkan bagaimana tiupan bayu sejuk dari laut itu berlaku. [3 marks ]

(c) A parachutist intends to jump in the Artic region where the temperature ranges from – 72oC to 0oC. He needs to measure the daily temperature of the region where he will be doing his jump by using a liquid-in-glass thermometer. Seorang ahli payung terjun akan membuat terjunan di kawasan Artik di mana julat suhunya ialah dari – 72oC hingga 0oC. Dia perlu mengukur suhu harian di kawasan terjunan dengan menggunakan sebuah termometer cecair dalam kaca.

(i) State two suitable characteristics for the liquid used in the thermometer and explain your answer. Nyatakan dua ciri – ciri cecair yang sesuai digunakan dalam termometer tersebut dan jelaskan jawapan anda.

[4 marks ]

(ii) Explain three other important characteristics in building the thermometer. Terangkan tiga ciri-ciri penting yang lain untuk membina termometer tersebut)

[6 marks ]


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10 Figure 10.1 shows a magnet placed on a stationary trolley. Figure 10.1(a) is

the situation when the trolley is stationary while Figure 10.1(b) is the situation when the trolley is moving into the solenoid. Figure 10.2(a) shows a conductor which is stationary in the magnetic field while Figure 10.2(b) shows the conductor being moved downwards in the magnetic field. Rajah 10.1 (a) menunjukkan sebatang magnet diletakkan di atas troliyang pegun. manakala Rajah 10.1(b) adalah keadaan ketika troli bergerak ke arah solenoid. Rajah 10.2(a) menunjukkan sebatang konduktor berada dalam keadaan pegun dalam medan magnet manakala Rajah 10.2(b) menunjukkan konduktor sedang ditolak ke bawah dalam medan magnet.

[Turn over

FIGURE 10.2 /RAJAH 10.2 (a) (b)

Centre-zero galvanometer Galvanometer sifar tengah

FIGURE 10.1/RAJAH 10.1 (a) (b)


N

S

N

S




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(a) (i) What is meant by magnetic field? Apakah yang di maksudkan dengan medan magnet?

[ 1 mark ]

(ii) Observe Figures 10.1 and 10.2, compare the galvanometer readings when there is no relative motion between the magnet and the conductor and when there is relative motion between them.

Hence relate the current and the relative motion between the conductor and the magnetic field to deduce a physics concept.

Name the physics concept that explains the above situation. Perhatikan Rajah 10.1 dan 10.2, bandingkan bacaan galvanometer bila tiada gerakan relatif di antara magnet dan konduktor dan bila ada gerakan relatif di antaranya.

Seterusnya hubungkaitkan antara arus dengan gerakan relatif antara konduktor dan medan magnet untuk membuat satu kesimpulan tentang satu konsep fizik.)

(Namakan konsep fizik yang berkaitan dengan pemerhatian di atas.

[ 5 marks ]

(b)

Compare the structures, direction of current and changes in energy forms between a direct current generator and an alternating current generator. Bandingkan struktur binaan, arah arus dan pertukaran bentuk tenaga di antara penjana arus terus dan penjana arus ulangalik.

[ 4 marks ]

(c) You are given two coils R and S, with 50 and 100 turns respectively, an iron core and a 240V a.c. power supply. All the materials are used to build a simple transformer. Anda dibekalkan dua gegelung R dan S, masing-masing dengan bilangan lilitan 50 dan 100, satu teras besi dan bekalan kuasa arus ulangalik 240V. Semua bahan adalah untuk digunakan dalam membina sebuah transformer ringkas.

(i) Using all the materials supplied and with the aid of a labeled diagram(s), explain how you are going to build a simple step-up transformer. Menggunakan semua bahan yang dibekalkan dan dengan bantuan rajah berlabel, terangkan bagaimana anda akan membina sebuah transformer injak naik yang ringkas

[ 4 marks ]

(ii) Suggest modifications that need to be done to the transformer to increase its efficiency. Cadangkan modifikasi yang perlu dibuat pada transformer untuk meningkatkan kecekapannya.

[ 6 marks ]


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Answer any one question Jawab mana-mana satu soalan

11 (a) Figure 11.1 shows the top view position of a car driver, the car’s side

mirror and the front of a lorry which is overtaking the car. Rajah 11.1 menunjukkan pandangan atas kedudukan seorang pemandu kereta, cermin sisi dan bahagian depan lori yang sedang memotong kereta tersebut.

(i) Name the type of mirror used for the side mirror in Figure 11.1. Namakan jenis cermin yang digunakan sebagai cermin sisi dalam Rajah 11.1.

[ 1 marks ]

(ii) Explain why the mirror in Figure 11.1 is used instead of other types of mirror. Terangkan mengapakah cermin ini digunakan dalam Rajah 11.1 dan bukannya dari jenis cermin lain.

[ 3 marks ]

(iii) The focal length of the side mirror in Figure 11.1 is 5 cm. An object with a height of 3 cm is placed 6 cm in front of the mirror.

Using a scale of 1:1, draw a ray diagram to show how the image of the object is formed. Panjang fokus cermin sisi dalam Rajah 11.1 ialah 5 cm. Satu objek yang tingginya 3 cm diletakkan 6 cm di hadapan cermin tersebut.

Dengan menggunakan skala 1: 1, lukiskan gambarajah sinar untuk menunjukkan bagaimana imej objek terbentuk.

[ 2 marks ]

[Turn over

Side mirror Cermin sisi

Front of the lorry

Bahagian depan lori

Car driver Pemandu kereta

FIGURE 11.1 (RAJAH 11.1)

Section C Bahagian C


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(b) You are asked to investigate the features of optical fibers for the design of an

endoscope for medical imaging. Figure 11.2 below shows the parts of an optical fibre. Anda dikehendaki menyiasat ciri-ciri serabut optik dalam rekabentuk satu endoskop untuk ‘imaging’ atau penyurihan dalam perubatan.. Rajah 11.2 di bawah menunjukkan bahagian-bahagian gentian optik.

FIGURE 11.2 (RAJAH 11/2)

Optical Fibre

Refractive Index of Outer Cladding

Indeks biasan lapaisan luar

Refractive Index of Inner Core

Indeks biasan teras

Flexibility Kelenturan

Diameter of fibre (mm)Diamater gentian (mm)

P 1.5 1.6 High 1.00

Q 1.6 1.5 Low 1.00

R 1.5 1.6 High 0.01

S 1.6 1.5 Low 0.01

(i) Based on the Table above, explain the suitable features of the

optical fibres and then determine the most suitable optical fibre that can be used to design the endoscope. Give reasons for your choice. Berdasarkan Jadual di atas, terangkan ciri- ciri serabut optik dan tentukan serabut optik yang paling sesuai digunakan untuk mereka cipta sebuah endoskop. Berikan sebab bagi pilihan anda.

[ 8 marks ]

Outer cladding Lapisan luar

Inner core of optical fibre Teras gentian optik


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(ii) Figure 11.3 shows an endoscope. At the two ends of the

endoscope are two lenses. One is the objective lens, the other is the eye piece. Rajah 11.3 menunjukkan satu endoskop. Di hujung endoskop tersebut terdapat dua kanta. Satu kanta objek dan satu lagi kanta mata.

State the function of the two lenses. Nyatakan fungsi kedua- dua kanta tersebut.

[ 2 marks ]

(c) An object is placed 30 cm from a convex lens of focal length 10 cm. Satu objek diletakkan 30 cm dari satu kanta cembung yang mempunyai panjang fokus 10 cm.

(i) Calculate the image distance. Hitungkan jarak ime.

(ii) Calculate the linear magnification for the image. Hitungkan pembesaran linear imej.

[ 5 marks ]

[Turn over


Eye piece Kanta mata Objective lens

Kanta objektif

Light from light source Cahaya dari satu sumber cahaya

Optical fibres Gentian optik


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12 (a) Figure 12.1(a) shows a filament light bulb labelled “240 V, 100 W ”.

Figure 12.1 (b) shows a graph of potential difference against current for two materials, P and Q. One of the materials will be chosen as filament in a bulb. Rajah 12.1(a) menunjukkan sebiji mentol berfilamen dilabelkan “240 V, 100 W ”. Rajah 12.1(b) menunjukkan graf beza upaya melawan arus bagi dua bahan, P dan Q. Satu bahan yang sesuai akan dipilih sebagai filamen sebiji mentol.

(i) What is meant by 240 V, 100W? Apakah yang dimaksudkan dengan “240 V, 100W”?

[ 1 mark ]

(ii) Based on the graph in Figure 12.1(b), compare the resistance of materials P and Q. Choose the more suitable material to be used as filament of the bulb. Explain your choice. Berdasarkan graf, dalam Rajah 12.1(b), bandingkan rintangan bahan P dan Q. Pilih bahan yang sesuai untuk dijadikan filament mentol tersebut. Terangkan jawapan anda.

[ 4 marks ]


Material P Bahan P

Material Q Bahan Q

Potential difference Beza keupayaan

Current Arus

(b) (a)

Filament Filamen

240 V 100 W


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(b) The National Grid Network is a network of overhead cables supported on pylons as shown in Figure 12.2. Jaringan Grid Nasional ialah satu rangkaian jaringan kabel penghantaran yang disokong oleh pilon seperti yang ditunjuk dalam Rajah 12.2.

Table 12.1 shows the properties of cables A, B, C and D which have the same diameter and length to be used as overhead transmission cables. Rajah 12.1 menunjukkan ciri-ciri bagi kabel A, B, C dan D yang mempunyai diameter dan panjang yang sama dan akan digunakan sebagai kabel penghantaran.

Properties

Ciri Cable Kabel

Density Ketumpatan ( g cm-3)

Voltage Across Cable Beza Keupayaan Merentasi Kabel

(kV)

Melting Point

Takat Lebur ( oC)

Resistance Rintangan

( Ω)

A 7.86 132 735 Low

B 11.90 33 900 Low

C 15.40 132 327 High

D 3.74 33 650 High

TABLE 12.1 /JADUAL 12.)

(i) Explain the suitability of each characteristic of the cable to be used as the overhead transmission cables. Terangkan kesesuaian setiap ciri ciri kabel yang akan digunakan sebagai kabel penghantaran.

(ii) Then determine the most suitable cable and justify your choice. Seterusnya tentukan kabel yang paling sesuai dan berikan sebab bagi pilihan anda.

[ 10 marks ]

[Turn over

Pylon Pilon

Light industries (Industri ringan)

Cable Kabel



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(c) Figure 12.3 shows a circuit which consists of dry cells, an ammeter and two light bulbs connected in parallel. Rajah 12.3 menunjukkan sebuah litar yang mengandungi sel kering, ammeter dan dua mentol yang disambung secara selari.

When both bulbs light up with normal brightness, calculate: Jika kedua dua mentol menyala dengan kecerahan normal, hitungkan:

(i) the current flowing through the ammeter. arus yang melalui ammeter

(ii) the energy dissipated through the 6W, 6V bulb in 20 seconds. tenaga dibebaskan melalui mentol 6W, 6V dalam masa 20 saat.

[ 5 marks ]

END OF QUESTION PAPER (KERTAS SOALAN TAMAT)

A

6 V 12W, 6V 6W, 6V



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Angka Giliran …..................................................................

Identity Card No.: ……………………………………..….

Name : ………………………………………………….…

College No. : ………………. Class : …………….


SPM TRIAL EXAMINATION 2007

PHYSICS

Paper 3

One hour and thirty minutes

DO NOT OPEN THIS BOOKLET UNTIL YOU ARE TOLD TO DO SO

1. Write down your index no., identity

card no., name, college no. and class in the space provided.

2. The questions are written in English

and bahasa Malaysia. 3. Candidates are required to read the

information on page 3.

Examiner’s code

Section Question Marks Score

1 16

A

2 12

1 12

B

2 12

TOTAL

4531/3 PHYSICS Paper 3 August 2007 1 ½ hours

This booklet consists of 16 printed pages Buku soalan ini mengandungi 16 halaman bercetak

Turn over

©2007 Copyright Bahagian Pendidikan dan Latihan (Menengah) MARA


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INFORMATION TO CANDIDATES MAKLUMAT UNTUK CALON 1. This question paper consists of two sections: Section A and Section B.

Kertas soalan ini mengandungi dua bahagian: Bahagian A dan Bahagian B.

2. Answer all questions in Section A. Write your answers for Section A in the spaces provided in the question paper. Jawab semua soalan daripada Bahagian A. Jawapan kepada Bahagian A hendaklah ditulis dalam ruang yang disediakan dalam kertas soalan.

3. Answer one question from Section B. Write your answers for Section B on the

paper provided by invigilators. Answer questions in Section B in detail. Answers should be clear and logical. Equations, figures, tables, graphs and other suitable methods can be used to explain your answer. Jawab satu soalan daripada Bahagian B . Jawapan kepada Bahagian B hendaklah ditulis pada helaian tambahan yang dibekalkan oleh pengawas peperiksaan. Anda diminta menjawab dengan lebih terperinci. Jawapan mestilah jelas dan logik. Persamaan, gambar rajah, jadual, graf dan cara lain yang sesuai untuk menjelaskan jawapan anda boleh digunakan.

4 Show your working it may help you to get marks.

Tunjukkan kerja mengira,ini membantu anda mendapatkan markah.

5. If you wish to cancel any answer, neatly cross out the answer. Sekiranya anda hendak menukar jawapan, batalkan dengan kemas jawapan yang telah dibuat. Kemudian tulis jawapan yang baru.

6. The figures in the questions provided are not drawn to scale unless stated.

Rajah yang mengiringi soalan tidak dilukis mengikut skala kecuali dinyatakan.

7. The marks allocated for each question or sub-section of a question are shown in brackets. Markah yang diperuntukkan bagi setiap soalan atau ceraian soalan ditunjukkan dalam kurungan)

8. A booklet of four-figure mathematical tables is provided.

Buku sifir matematik empat angka disediakan. 9. You may use non-programmable scientific calculator. However, steps in

calculation must be shown. Anda dibenarkan menggunakan kalkulator saintifik yang tidak boleh diprogram.

10. The time suggested to complete Section A is 60 minutes and Section B is 30

minutes. Masa yang dicadangkan untuk menjawab Bahagian A ialah 60 minit dan Bahagian B ialah 30 minit

11. Hand in your answer sheets at the end of the examination. Serahkan kertas jawapan anda di akhir peperiksaan.


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Section A Bahagian A


Answer all questions Jawab semua soalan

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

sine of the angle of incidence, i and the sine of the angle of refraction, r of a glass block.

The arrangement of the apparatus for the experiment is shown in Figure 1.1 Seorang pelajar menjalankan eksperimen untuk mengkaji hubungan di antara sin sudut tuju,i dan sin sudut biasan,r bagi suatu blok kaca.

Susunan alat radas eksperimen seperti yang ditunjukkan pada Rajah 1.

A ray of light is directed along the angle of incidence, i = 20o and forms the angle of refraction, r. The angle of refraction is measured by using a protractor. The corresponding reading of r1 , is shown in Figure 1.2 on page 5. The experiment is repeated by varying the angle of incidence, i, to 30o, 40o, 50o and 60o. The corresponding angles of refraction, r are shown in Figures 1.3, 1.4, 1.5 and 1.6 on pages 6 and 7 respectively. Satu sinar cahaya ditujukan ke bongkah kaca pada sudut tuju, i = 20o dan membentuk sudut biasan, r. Sudut biasan diukur dengan menggunakan protrektor. Bacaan sudut biasan, r1 yang sepadan ditunjukkan pada Rajah 1.2 pada halaman 5. Eksperimen ini diulangi dengan mengubah sudut tuju, i, kepada 30o, 40o, 50o dan 60o. Bacaan bagi sudut biasan, r yang sepadan ditunjukkan pada Rajah 1.3, 1.4, 1.5 dan 1.6 pada halaman 6 dan 7.

Turn over

i

r Glass block Bongkah kaca

Ray box Kotak sinar

Incidence ray Sinar tuju

Refracted ray Sinar biasan


M

N

Protractor Protrektor


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FIGURE 1.2 RAJAH 1.2

The reading of the angle of refraction, r when i = 200 Bacaan sudut biasan, r apabila sudut i = 200

i = 200


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The reading of the angle of refraction, r when i = 300

Bacaan sudut biasan, r apabila sudut i = 300



Turn over

i = 300

i = 400


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FIGURE 1.5 RAJAH 1.

The reading of the angle of refraction, r when i = 500

Bacaan sudut biasan, r apabila sudut i = 500



i = 500

i = 600


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(a)

For the experiment described on page 4 , identify Bagi eksperimen yang diterangkan di halaman 4 kenal pasti

(i) the manipulated variable pembolehubah dimanipulasikan

…………………………………………………………………………

[ 1 mark ]

1(a)(i)

(ii) the responding variable pembolehubah bergerak balas

…………………………………………………………………………

[ 1 mark ]

1(a)(ii)

(iii) the fixed variable pembolehubah dimalarkan

…………………………………………………………………………

[ 1 mark ]

1(a)(iii)

(b) Determine the angle of incidence, i and the corresponding angle of refraction, r,. for Figures 1.2, 1.3, 1.4, 1.5 and 1.6.

Tabulate your results for i, r, sin i and sin r in the space below. Tentukan nilai sudut tuju,i dan nilai sudut biasan, r yang sepadan pada Rajah 1.2, 1.3, 1.4, 1.5 dan 1.6,

Jadualkan keputusan anda bagi i, r, sin i dan sin r pada ruang di bawah.

[ 6 marks ]

1(b)

Turn over

For Examiner’s

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(c) On the graph paper on page 10, plot a graph of sin r against sin i. Pada kertas graf di halaman 8, lukiskan graf sin r melawan sin i.

[ 5 marks ]

1(c)

(d) Based on your graph, state the relationship between sin r and sin i. Berdasarkan graf anda, nyatakan hubungan di antara sin r and sin i.

…………………………………………………………………………………

[ 1 mark ]

1(d)

(e) State one precaution that should be taken to obtain the accurate readings of i. Nyatakan satu langkah berjaga-jaga yang perlu diambil untuk mendapatkan bacaan i yang jitu.

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

[ 1 mark ]

1(e)

Total

For Examiner’s

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Turn over

Graph of sin r against sin i Graf sin r melawan sin i


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2 A student carries out an experiment to investigate the relationship between pressure, P and depth, h of a liquid X at sea level. The pressure P is determined using the formula :

P = Pliquid + Patm where Pliquid = pressure by column of liquidX Patm = atmospheric pressure

Seorang murid menjalankan satu eksperimen untuk mengkaji hubungan di antara tekanan, P dengan kedalaman, h bagi satu cecair X pada paras laut. Tekanan P ditentukan menggunakan dengan rumus:

P = Pcecair + Patm di mana Pcecair = tekanan okeh turus cecair X Patm = tekanan atmosfera

2(a)

(a) Based on the graph on page 11, determine the atmospheric pressure, Patm when h = 0 m.

Show on the graph, how you determine the value of the atmospheric pressure. Berdasarkan graf di halaman 11, tentukan tekanan atmosfera, Patm apabila h = 0 m.

Tunjukkan pada graf itu bagaimana anda menentukan nilai tekanan atomosfera.

Patm = ………………………. [ 2 marks ]

(b) The density of the liquid can be determined from the formula Ketumpatan cecair boleh ditentukan oleh rumus ρ = 0.12 k where k is the gradient of the graph P against h

di mana k adalah kecerunan graf P melawan h

2(b)(i)

9 (i) Calculate the gradient, k, of the graph P against h.

Show on the graph how you determine k. Hitungkan kecerunan , k, bagi graf P melawan h

Tunjukkan pada graf itu bagaimana anda menentukan nilai k. k = ……………………..

[ 4 marks]

For Examiner’s

Use


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Graph of P against h Graf P melawan h

Turn over

P / x 105 N m-2

h / m 0.1 0.2 0.3 0.4 0.6 0.7 0

0.99

1.00

1.01

1.02

1.03

1.04

1.05

1.06

0.5


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2(b)(ii)

(ii) Determine the density of liquid, ρ Seterusnya tentukan nilai ketumpatan cecair ,ρ ρ = ………………………… kg m-3.

[ 1 mark]

2(c)

(c) Based on the graph on Figure 2.1 on page 12, determine the pressure P exerted on the liquid when the depth of liquid, h = 0.5 m Berdasarkan graf pada Rajah 2.1 pada halaman 12, tentukan tekanan, P yang dikenakan ke atas cecair apabila nilai kedalaman, h = 0.5 m P = …………………………….

[ 2 marks]

2(d)(i)

(d) (i) If the liquid X is replaced with a denser liquid Y, what will happen to the value of k? Sekiranya cecair X digantikan dengan cecair Y yang lebih tumpat, apakah yang akan berlaku terhadap nilai k? …………………………………………………………………………

[ 1 mark]

2(d)(ii)

(ii) Explain your answer. Terangkan jawapan anda. …………………………………………………………………………

[ 1 mark]

2(e)

Total

(e) State one precaution that should be taken to improve the results of this experiment. Nyatakan satu langkah berjaga-jaga yang perlu diambil untuk memperbaiki keputusan eksperimen ini. …………………………………………………………………………………

[ 1 mark]

For Examiner’s

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Section B Bahagian B


Answer any one questions. Jawab mana-mana satu soalan.

3 Figure 3(a) and 3(b) show two similar electric kettles used to boil water. The

power ratings for the kettles are 240 V, 1000 W. It is found that the water in the kettle in Figure 3(b) boils faster than the water in the kettle in Figure 3(a). Rajah 3(a) dan 3(b) menunjukkan dua buah cerek elektrik yang serupa , digunakan untuk mendidihkan air. Kadar kuasa cerek-cerek tersebut adalah 240 V, 1000 W. Didapati air dalam cerek di Fajah 3(b) mendidih lebih cepat berbanding dengan air dalam cerek di Rajah 3(a).

Figure 3(a) Figure 3(b) Rajah 3(a) Rajah 3(b)

Based on the information and your observation above: Berdasarkan maklumat dan pemerhatian di atas :

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

[1 mark]

(b) State one suitable hypothesis. Nyatakan satu hipotesis yang sesuai.

[1 mark]

240 V, 1000 W 240 V, 1000 W


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Turn over (c) With the use of apparatus such as immersion heater, measuring cylinder

and other apparatus, describe an experiment framework to investigate the hypothesis stated in 3 (b) Dengan menggunakan radas seperti pemanas rendam, silinder penyukat dan lain-lain radas, terangkan satu rangka kerja eksperimen untuk menyiasat hipotesis yang anda nyatakan di 3 (b).

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

(i) Aim of the experiment. Tujuan eksperimen

(ii) Variables in the experiment Pembolehubah yang terlibat dalam eksperimen

(iii) List of apparatus and materials Senarai radas dan bahan

(iv) Arrangement of apparatus. Susunan radas

(v) The procedure of the experiment which includes the method of controlling the manipulated variable and the method of measuring the responding variable. Prosedur eksperimen termasuk kaedah mengawal pembolehubah dimanipulasi dan kaedah mengukur pembolehubah bergerak balas.

(vi) The way you would tabulate the data. Cara anda akan menjadualkan data.

(vii) The way you would analyse the data. Cara anda akan menganalisis data

[10 marks]


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4 Figure 4(a) and 4(b) show two similar bulbs, each is connected to a dry cell. The bulb in Figure 4(b) lights up brighter than the bulb in Figure 4(a). Rajah 4(a) dan 4(b) menunjukkan dua buah mentol serupa setiap satu yang disambung pada sebuah sel kering. Mentol dalamRrajah 4(b) menyala dengan lebih cerah berbanding dengan mentol dalam Rajah 4(a).

Figure 4(a) Rajah 4(a)

Figure 4(b) Rajah 4(b)

Based on the information and your observation above: Berdasarkan maklumat dan pemerhatian di atas :

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

[1 mark]

(b) State one suitable hypothesis. Nyatakan satu hipotesis yang sesuai.

[1 mark]

Turn over


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(c)

With the use of apparatus such as wire of different diameters and other apparatus, describe an experiment framework to investigate the hypothesis stated in 4 (b) Dengan menggunakan radas seperti dawai yang mempunyai diameter yang berbeza dan lain-lain radas, terangkan satu rangka kerja eksperimen untuk menyiasat hipotesis yang anda nyatakan di 4 (b)

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

(i) Aim of the experiment. Tujuan eksperimen

(ii) Variables in the experiment Pembolehubah yang terlibat dalam eksperimen

(iii) List of apparatus and materials Senarai radas dan bahan

(iv) Arrangement of apparatus. Susunan radas

(v) The procedure of the experiment which includes the method of controlling the manipulated variable and the method of measuring the responding variable. Prosedur eksperimen termasuk kaedah mengawal pembolehubah dimanipulasi dan kaedah mengukur pembolehubah bergerak balas.)

(vi) The way you would tabulate the data. Cara anda akan menjadualkan data.

(vii) The way you would analyse the data. Cara anda akan menganalisis data

[10 marks]

END OF QUESTION PAPER (KERTAS SOALAN TAMAT)


fizik kertas 1, 2, 3 percubaan spm 2007 mrsm

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