physics trial paper 1 perlis 2008

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SULIT [Lihat sebelah 4531/1 SULIT PEPERIKSAAN PERCUBAAN BERSAMA SIJIL PELAJARAN MALAYSIA 2008 ANJURAN BERSAMA PERSIDANGAN KEBANGSAAN PNGETUA-PENGETUA SEKOLAH MENENGAH MALAYSIA (CAWANGAN PERLIS) DAN JABATAN PELAJARAN PERLIS PHYSICS 4531/1 Kertas 1 September Satu jam lima belas minit JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU 1.  Kertas soalan ini adalah d alam dwibahasa 2. Soalan dalam bahasa Inggeris mendahului soalan yang sepadan dalam bahasa Melayu. 3. Calon dikehendaki membaca maklumat di halaman belakang kertas soalan ini Kertas soalan ini mengandungi 28 halaman bercetak

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Page 1: physics Trial Paper 1 Perlis 2008

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PEPERIKSAAN PERCUBAAN BERSAMA

SIJIL PELAJARAN MALAYSIA 2008

ANJURAN BERSAMA

PERSIDANGAN KEBANGSAAN PNGETUA-PENGETUA

SEKOLAH MENENGAH MALAYSIA (CAWANGAN PERLIS)

DAN JABATAN PELAJARAN PERLIS

PHYSICS 4531/1Kertas 1

September

Satu jam lima belas minit

JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU

1. Kertas soalan ini adalah dalam dwibahasa

2. Soalan dalam bahasa Inggeris mendahului soalan yang sepadan dalam bahasa Melayu.

3. Calon dikehendaki membaca maklumat di halaman belakang kertas soalan ini

Kertas soalan ini mengandungi 28 halaman bercetak

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

Maklumat berikut mungkin berfaedah. Simbol-simbol mempunyai makna yang biasa.

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1 If force ( F ), velocity ( v ) and time ( t ) are defined as physical quantities, which of the

following combinations of F , v and t will have kg ms-1 as its unit?

Jika daya ( F ), halaju ( v ) dan masa ( t ) ditakrifkan sebagai kuantiti fizik, yang

manakah antara kombinasi F, v dan t mempunyai kg ms-1 sebagai unit unit asasnya?

A Ftv

B Fvt

C Ft

D vt

2 Diagram 1 shows the scale of a micrometer screw gauge when it is measuring thethickness of a piece of glass.

Rajah 1 menunjukkan skala tolok skru mikrometer semasa sedang mengukur ketebalan

sekeping kaca.

Diagram 1 / Rajah 1

What is the actual thickness of the glass if the zero error of the micrometer screw gauge

is – 0.02 mm?

Berapakah ketebalan sebenar kaca itu jika ralat sifar tolok skru mikrometer itu

ialah – 0.02 mm?

A 12.34 mm

B 12.50 mm

C 12.84 mm

D 12.86 mm

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3 Which group contains scalar quantities only?

Kumpulan manakah mengandungi kuantiti skalar sahaja?

A B

C D

4 Which of the following displacement-time graph shows an object moving with constantvelocity?

Antara graf sesaran-masa berikut, yang manakah menunjukkan objek yang sedang

bergerak dengan halaju malar?

A B

C D

Speed / Laju

Weight / Berat Volume / Isipadu

Force / Daya

Momentum / Momentum

Velocity / Halaju

Displacement / Sesaran

Area / Luas

Density / Ketumpatan

Distance / Jarak

Work / KerjaMass / Jisim

s/m

t /s

s/m

t /s

s/m

t /s

s/m

t /s

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5 Diagram 2 below shows the velocity-time graph of an object.

Rajah 2 di bawah menunjukkan graf halaju-masa bagi suatu objek.

Diagram 2 / Rajah 2

Which of the following statements are true?

Manakah di antara pernyataan berikut adalah benar ?

A Its acceleration is increasing

Pecutannya semakin bertambah

B Its acceleration is decreasing

Pecutannya semakin berkurang

C Its acceleration is zero

Pecutan adalah sifar

6 Zainal walks from A to C along the road AB and then BC as shown in diagram 3 below. Zainal berjalan dari A ke C melalui jalan AB dan seterusnya mealui jalan BC seperti

ditunjukkan dalam rajah 3 di bawah

Diagram 3 / Rajah 3

What is the distance travelled and the displacement he walks from A to C?

Berapakah jarak yang dilalui dan sesaran yang apabila dia berjalan dari A ke C?

Distance/m ( Jarak/ m) Displacement/m (Sesaran/ m)

A 50 40

B 40 70

C 600 40

D 600 50

v/ms-

t/s

C

A

B

30m 20m

40m

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7 Ahmad is walking up a stairs with 10 steps. Each step is 50 cm high. Calculate

gravitational potential energy gained if his weight is 550 N

Ahmad sedang menaiki tangga yang mempunyai 10 anak tangga. Ttinggi setiap satu

anak tangga ialah 50 cm. Kirakan pertambahan tenaga keupayaan graviti Ahmad jika

beratnya ialah 550 N? A 275 J

B 2 750 J

C 27 500 J

D 275 000 J

8 Diagram 4 shows three forces F1, F2 and F3 acting on a point.

Rajah 4 menunjukkan tiga daya iaitu F1, F2 dan F3 bertindak pada satu titik.

Diagram 4 / Rajah 4

Which of the following diagram shows that the forces are in equilibrium?

Rajah manakah antara berikut menunjukkan keseimbangan daya ?

A B

C D F1

F3F2

F2

F1

F3

F2

F1

F3

F2

F1

F3

F 2

F 1

F 3

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9 A fully loaded train is difficult to stop when it is in motion because

Keretapi yang sarat muatan yang sedang bergerak sukar untuk diberhentikan kerana

A It is traveling in a straight line Ia bergerak dalam garis lurus

B Its mass is very big

Jisimnya sangat besar

C Its mass is small

Jisimnya kecil

D Its inertia is very big

Inersianya sangat besar

10 Six strips of ticker tape which were attached to a trolley are paste as shown in diagram

5 below.

Enam keratan pita detik yang ditarik oleh sebuah trolley disusun bersebelahan seperti

ditunjukkan dalam rajah 5.

Diagram 5 / Rajah 5

From the chart, what can be said about the velocity of the trolley

Dari bentuk carta, apakah yang dapat dijelaskan tentang halaju troli tersebut?

A The velocity of the trolley is zero

Halaju troli adalah sifar

B The velocity of the trolley decreases with time

Halaju troli berkurang dengan masa.

C The velocity of the trolley increases with time

Halaju troli bertambah dengan masa.

D The velocity of the trolley does not change

Halaju troli tidak berubah.

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11 Why are safety features important in a vehicle?

Mengapakah cirri-ciri keselamatan penting untuk sebuah kenderaan

A To increase the price of the vehicle

Untuk menaikkan harga kenderaan

B To reduce serious injuries to passengers

Untuk mengurangkan kecederaan yang serius kepada penumpang

C To prevent accidents from happening

Untuk mengelak daripada berlakunya kemalangan

12 What is the relationship between pressure and area when the force applied is constant?

Apakah perkaitan di antara tekanan dan luas apabila daya yang tetap bertindak?

A Pressure is directly proportional to area.

Tekanan berkadar terus dengan luas

B Pressure is inversely proportional to area

Tekanan berkadar songsang dengan luas.

C Pressure and area are always constant.

Tekanan dan luas adalah malar.

13 Which of the following factors will not affect the pressure in a liquid?

Yang manakah dari faktor berikut tidak akan mempengaruhi tekanan di dalam cecair ?

A Gravitational field strength

Kekuatan medan gravity

B Density of the liquid

Ketumpatan cecair

C Volume of the liquid

Isipadu cecair

D Depth of the liquid

Kedalaman cecair

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14 An object stays afloat on water with 10% of its volume above the water level. If the

density of water is 1000 kg/m³ , what is the density of the object?

Sesuatu objek terapung dengan 10% daripada isipadunya di atas paras air. Jikalau

ketumpatan air ialah 1000 kg/m³, berapakah ketumpatan object itu?

A 700 kg m-3

B 750 kg m-3

C 800 kg m-3

D 900 kg m-3

15 The actual weight of an object is 12 N. The apparent weight of the object when it is

immersed in water is 9 N. What is the density of the object?

( Density of water is 1000 kg m-3)

Berat sebenar sesuatu object ialah 12 N. Berat setaranya apabila tenggelam di dalamair ialah 9 N. Berapakah ketumpatan object itu?

( Ketumpatan air ialah 1000 kg m-3 )

A 2800 kg m-

B 3000 kg m-

C 3500 kg m-

D 4000 kg m-

16 Which of the following graphs represents the relationship between the pressure, P , and

the depth, h , of a column of water?

Yang mana dari graph berikut menunjuk perkaitan di antara tekanan P , dan kedalaman,

h bagi suatu turus air?

A B

C D

P

h

P

h

P

h

P

h

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17 Diagram 6 shows an inflated balloon being left in an airtight container.

Rajah 6 menunjukkan satu belon berisi udara di dalam satu bekas kedap udara.

Diagram 6 / Rajah 6

What will happen to the balloon when the piston is pulled?

Apa akan terjadi kepada belon jika omboh di tarik?

A The ballon will increase in size.

Saiz belon akan bertambah

B The ballon will move towards the piston but its size will remain unchanged.

Belon akan mendekati omboh tetapi saiznya tetap sama

C The air in the ballon will escape

Udara di dalam belon akan keluar.

18 Diagram 7 shows the cross-section of an aerofoil.

Rajah 7 menunjuk keratan-rentas satu aerofoil.

Diagram 7 / Rajah 7

If the aerofoil moves in the direction P , which of the following is true about the speed of

the air flow and the pressure of the air at point X ?

Jika aerofoil bergerak ke arah P ,yang manakah benar berkaitan kelajuan pengaliranudara dan tekanan udara di X ?

Speed of air flow

Kelajuan pengaliran udara

Pressure of air

Tekanan udara

A Low ( Rendah) High (Tinggi)

B Low ( Rendah) Low ( Rendah)

C High (Tinggi) Low ( Rendah)

D High (Tinggi) High (Tinggi)

Airtight container

bekas kedap udara

/ Belon

/ Omboh

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19 Whenever matter changes from one phase to another, some of its energy is either

released or absorbed without change of temperature. The energy is called

Apabila jirim berubah dari satu bentuk ke bentuk yang lain,sebahagian tenaga akan

diserap atau dibebaskan tanpa ada sebarang perubahan suhu keatas jirim tersebut.Tenaga ini dikenali sebagai

A heat capacity

muatan haba

B Latent heat

haba pendam

C thermal energy

tenaga terma

D heat transferhaba pemindahan

20 Diagram 8 shows two metal blocks of different temperature placed together in conctact.

Rajah 8 menunjukkan blok logam pada suhu berbeza diletakkan secara bersentuhan.

Diagram 8 / Rajah 8

Which of the following statement about thermal equilibrium is false.

Kenyataan manakah mengenai keseimbangan terma yang tidak benar .

A The temperature of block P is equals to the temperature of block Q.

Suhu blok P adalah sama dengan suhu blok Q.

B No net heat flow between block P and block Q

Tiada pengaliran haba bersih antara blok P dan blok Q

C Equals heat quantity in block P and block Q

Tenaga haba pada blok P adalah sama dengan tenaga haba pada blok Q

25 OC75 OC

P

Q

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21 An enclosed container contains a fixed mass of gas at 27 C and at atmospheric

pressure. The container is heated and the temperature of the gas increases to 870C. Find

the new gas pressure if the volume of the container is constant.

(Atmospheric pressure = 1.0 x 105 N m-2)

Suatu bekas tertutup mengandungi gas yang berjisim tetap pada suhu 27˚ C dan di

bawah tekanan atmosfera. Bekas tersebut dipanaskan sehingga suhunya meningkat

kepada 87˚ C. Tentukan tekanan gas yang baru sekiranya isipadu bekas tersebut adalahtetap.

( tekanan Atmosfera = 1.0 x 105 N m-2 )

A 1.25 x 10 N rn-

B 1.20 x 10 N rn-

C 1.15 x 10 N rn-

D 1.10 x 10 N rn-

22 Diagram 9 shows solid blocks M and N of equal mass, which are being heated. The

initial temperature of M and N is the same and heated by the same amount of energy.

Rajah 9 menunjukkan blok M dan N yang berjisim sama sedang dipanaskan. Suhu awal

M dan N adalah sama dan kedua-duanya dipanaskan oleh kuantiti haba yang sama

Diagram 9 / Rajah 9

It is observed that M is hotter than N . This observation is due to the difference in

Didapati bahawa blok M lebih cepat panas daripada N. Ini terjadi adalah kerana

perbezaan dalam

A Density

Ketumpatan

B melting pointTakat didih

C Size

Saiz

D specific heat capacity

Muatan haba tentu

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23 The following table shows three solids and their respective specific heat capacity.

Jadual berikut menunjukkan tiga pepejal dengan muatan haba tentu masing-masing

Solid/ Pepejal Specific heat capacity/ Muatan haba tentu

(J kg-1º C-1)

P 450

Q 900

R 3200

By assuming all three solids have high melting points, which solid is suitable for making

the base of a frying pan and which solid is suitable for making the handle of the pan?

Dengan menganggapkan ketiga-tiga bahan tersebut mempunyai takat didih yang tinggi,

bahan manakah yang sesuai digunakan untuk membuat bahagian pemegang suatu kuali

dan bahan mana pula sesuai digunakan untuk membuat bahagian dasar kuali

Base of frying pan Handle of frying pan

A P R

B R P

C Q R

D R Q

24 Which one of the following mirror can form a real image?

Yang manakah di antara cermin berikut dapat menghasilkan imej nyata?

A B C

25 Periscope, binoculars and fibre optics are related to the

Periskop, binocular dan gentian optik dikaitkan dengan

A Reflection of light

Pantulan cahaya

B Refraction of light

Pembiasan Cahaya

C Total internal reflection.

Pantulan dalam penuh

Object Object Object

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26 Diagram 10 shows a beam of light passing through transparent blocks P , Q and R.

Rajah 10 menunjukkan alur cahaya melalui blok lutsinar P, Q dan R.

Diagram 10 / Rajah 10

Which of the following has the biggest refractive index?

Manakah diantara berikut mempunyai index biasan paling besar?

A Air

Udara

B block P

Blok P

C Block Q

Blok Q

D Block R

Blok R

27 Which of the following statement is true regarding a microscope?

Yang manakah antara penyataan berikut mengenai microskop adalah benar ?

A An object is at infinity.

Objek berada di infiniti.

B The image formed by objective lens is real and magnified.

Imej yang dibentuk oleh kanta objek adalah nyata dan dibesarkan.

C The final image is real.

Imej akhir adalah nyata.

D The distance between eyepiece and objective len is equal to the sum of the focal

length of both lenses.

Jarak antara kanta mata dan kata objek ialah hasil tambah panjang focus

kedua-dua kanta.

P

Q

R

Air/udara

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28 Which of the lenses has the highest positive power?

Manakah di antara kanta berikut mempunyai kuasa positif yang paling tinggi?

A B C D

29 Diagram 11 shows a displacement against distance graph for a wave. The frequency of

the wave is 4 Hz.

Rajah 11 menunjukkan graf sesaran lawan jarak suatu gelombang. Frekuensi

gelombang ialah 4 Hz.

Diagram 11 / Rajah 11

Find the speed of the wave.

Hitung halaju gelombang

A 2 cm s-

B 4 cm s-

C 12 cm s-

D 16 cm s-

Displacement/ cm

Distance / cm

0.5

- 0.5

0

4 8

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30 Diagram 12 shows the interference pattern occurring at point P, Q and R.

Rajah 12 menunjukkan corak interferens gelombang air yang berlaku pada titik P, Q

dan R

Diagram 12 / Rajah 12

What type of interference occurs at P , Q and R respectively? Apakah jenis interferens yang berlaku di P, Q dan R?

P Q R

AConstructive

Membina

Constructive

Membina

Destructive

Membinasa

BDestructive

Membinasa

Constructive

Membina

Destructive

Membinasa

CConstructive

Membina

Destructive

Membinasa

Destructive

Membinasa

D

Destructive

Membinasa

Constructive

Membina

Constructive

Membina

R

P Q

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31 Which of the following statements of an electromagnetic wave is not true?

Yang manakah pernyataan gelombang elektromagnet berikut tidak benar ?

A An electromagnetic wave is a longitudinal wave

Gelombang elektromagnet adalah gelombang membujur

B Electromagnetic waves can travels through a vacuum with the speed of

m s-1

Gelombang electromagnet boleh merambat melalui vakum dengan kelajuan c =

3.0 x 108 ms-1

C An electromagnetic wave consists of electric field and magnetic field

Gelombang elektromagnet terdiri daripada medan elektrik dan medan magnet

D An electromagnetic wave undergoes reflection, refraction, diffraction and

interference

Gelombang elektromagnet mengalami pantulan, pembiasan, pembelauan daninterferens

32 Diagram 13 shows part of electromagnetic waves spectrum.

Rajah 13 menunjukkan sebahagian spektrum gelombang electromagnet.

MicrowaveGelombang mikro

Infrared raysSinar inframerah

Ultraviolet raysSinar ultraungu

X-raysSinar- X

Gamma rays

Sinar gamma

Diagram 13 / Rajah 13

The position of the visible light is

Kedudukan cahaya nampak adalah

A between gamma rays and ultraviolet rays

di antara sinar gamma dan sinar ultraungu

B between infrared rays and ultraviolet rays

di antara sinar inframerah dan sinar ultraungu

C between microwave and infrared raysdi antara gelombang mikro dan sinar inframerah

D between ultraviolet rays and X-rays

di antara sinar ultraungu dan sinar-X

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33 When a wave propagates from a less dense medium to a denser medium , its frequency

Apabila suatu gelombang merambat dari medium kurang tumpat ke medium lebih

tumpat frekuensinya

A Increases Bertanbah

B Decreases

Berkurang

C Remains unchanged

Tidak berubah

34 In a Young’s double– slit experiment , a student recorded the following data

Dalam eksperimen dwi- celah Young, seorang pelajar telah merekodkan data berikut

Calculate the distance of separation between the slits

Hitung jarak pemisah diantara celah

A 0.05 mm

B 0.15 mm

C 0.25 mm

D 0.50 mm

Distance between the double slits and the screen = 1.5 m

Jarak diantara dwi celah dan skrin = 1.5 m

Distance between two adjacent bright fringes = 1.8 mm

Jarak diantara dua pinggir cerah yang berturutan = 1.8 m

Wavelength of the light waves = 600 nm

Panjang gelombang cahaya = 600 nm

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35 Which of the following diagram shows the correct pattern for an electric field?

Antara gambarajah dibawah yang mana satu menunjukkan corak medan elektrik yang

betul ?

A B

C D

36 Diagram 14 shows two resistors of 3 Ω and 6 Ω connected in parallel to a battery.

Rajah 14 menunjukkan dua rintangan iaitu 3 Ω dan 6 Ω disambungkan secara selari

kepada satu bateri.

Diagram 14 / Rajah 14

If the battery is able to supply a current of 3.0 A, what is the energy dissipated by the

3 Ω resistor in 5 seconds Jika bateri dapat membekalkan arus 3.0 A, berapakah tenaga yang dijanakan oleh

rintangan 3 Ω dalam masa 5 saat.

A 30 J

B 40 J

C 60 J

D 90 J

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37 Diagram 15 shows a 12 V battery connected across a resistor

Rajah 15 menunjukkan satu bateri 12 V disambungkan kepada satu perintang

Diagram 15 / Rajah 15

When the switch is closed, the ammeter shows a reading of 1.5 A. What is the internal

resistance of the battery?

Apabila suis ditutup , bacaan ammeter adalah 1.5 A. Berapakah nilai rintangan dalam

bateri tersebut?

A

B

C

D

38 Electricity is often transmitted over long distance at very high voltages. Why is this an

advantage?

Penghantaran elektrik jarak jauh dilakukan dengan menggunakan voltan tinggi. Apakah

kebaikan kaedah ini ?

A Electricity can travel faster along the cables.

Elektrik dapat mengalir dengan cepat disepanjang kabel.

B The transmission cables are safer to handle.

Kabel penghantaran adalah selamat untuk dikendalikan

C There is less energy loss from the cables.

Kehilangan tenaga dari kabel adalah kecil.

D The current in the cables is as large as possible.

Arus dalam kabel adalah sebesar yang mungkin

6 Ω

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39 Electromotive force has the same physical quantity as

Daya gerak elektrik mempunyai kuantiti fizikal yang sama dengan

A energy

tenaga

B power

kuasa

C Bouyant force

Daya tujahan

D electric potential difference

Beza keupayaan elektrik

40 A straight wire is placed vertically in a strong horizontal magnetic field as shown in

Diagram 16. When a strong electric current is passed down through the wire, the wire

will move towards

Satu dawai lurus diletakkan tegak dalam satu medan magnet seperti rajah 16 di bawah.

Apabila arus elektrik kuat dialirkan ke bawah melalui dawai itu, dawai tersebut akan

bergerak ke arah

Diagram 16/ Rajah 16

A North (Utara)

B South (Selatan)

C East (Timur)

D West ( Barat)

North

Pole

South

Pole

North

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41 Diagram 17 shows current, I , flowing in two identical solenoids placed close to each

other.

Rajah 17 menunjukkan arus I mengalir dalam dua solenoid serupa yang diletakkan

berdekatan.

Diagram 17 / Rajah 17

Which of the following shows the pattern and direction of magnetic field formed around

area X?

Antara rajah yang berikut yang manakah menunjukan corak dan arah medan magnet

yang terhasil di kawasan X?

A B

C D

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42 Diagram 18 shows an ideal transformer.

Rajah 18 menunjukkan sebuah transformer unggul.

Diagram 18 / Rajah 18

It is found that the reading value of the ammeter is 1.5A. What is the resistance of R(Ω)?

Didapati bacaan pada ammeter ialah 1.5 A. Berapakah nilai rintangan R (Ω)?

A 20

B 30

C 40

D 50

43 Why is iron often used in preference to steel as cores of electromagnet. Mengapa besi sering digunakan berbanding keluli sebagai teras elektomagnet.

A Iron loses its magnetism easily.

Besi mudah kehilangan kemagnetan.

B Iron retain its magnetism better.

Besi mengekalkan kemagnetannya dengan lebih baik.

C It is easier to magnetize iron

Besi lebih mudah dimagnetkan.

D Iron is cheaper than steel.

Besi lebih murah daripada keluli.

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44 Diagram 19 shows the design of a cathode-ray tube. There is a constant potential

difference across the deflection plates.

Rajah 19 menunjukkan struktur sebuah tiub sinar katod. Beza keupayaan merentasi plat

pemesong adalah tetap.

Diagram 19 / Rajah 19

Which change will increase the deflection of the spot on the screen?

Perubahan manakah akan meningkatkan pemesongan titik cahaya pada skrin ?

A decreasing the distance from the deflection plates to the screen.

mengurangkan jarak antara plat pemesong dan skrin

B increasing the length of the deflection plates

memanjangkan panjang plat pemesong

C increasing the potential difference between cathode and anode.

menambah beza keupayaan antara katod dan anod

D increasing the separation of the deflection platesmelebarkan jarak pemisah antara plat-plat pemesong

45 Transistor can function

Fungsi transistor adalah

A as rectifier

sebagai rectifier

B to smooth current

sebagai perata arus

C Current amplifier

Penguat arus

D Voltage amplifier

Penguat voltan

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46 Diagram 20 shows a circuit

Rajah 20 menunjukkan sebuah litar

Diagram 20/ Rajah 20

What are the components X, Y and Z?

Apakah komponen X, Y dan Z ?

X Y Z

AFuse

Fius

Resistor

perintang

npn transistor

transistor npn

BLamp

Mentol

variable resistor

perintang boleh ubah

pnp transistor

transistor pnp

Clight-dependent resistor

perintang peka cahaya

light-emitting diode

diod pemancar cahaya

pnp transistor

transistor pnp

Dlight-dependent resistor

perintang peka cahaya

variable resistor

perintang boleh ubah

npn transistor

transistor npn

Z

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47 Diagram 21 shows the combination of three logic gates.

Rajah 21 menunjukkan kombinasi tiga get logic.

P

R

Q

Diagram 21 / Rajah 21

Which of the following truth table shows the combination of the logic gates?

Antara berikut yang manakah merupakan jadual kebenaran kombinasi get logik itu?

A P Q R B P Q R

0 0 0 0 0 1

0 1 1 0 1 0

1 0 1 1 0 1

1 1 1 1 1 1

C P Q R D P Q R

0 0 1 0 0 1

0 1 0 0 1 01 0 1 1 0 0

1 1 0 1 1 1

48 In a nuclear fission reaction, an atom of U-235 is hit by a fast moving neutron and 200

MeV nuclear energy is released. The nuclear energy released is in the form of

Dalam satu proses pembelahan nucleus, atom U-235 dihentam oleh satu neutron

berkelajuan tinggi dan 200 MeV tenaga terhasil dari tindakbalas tersebut.. Tenaga

nuklear ini adalah dalam bentuk

A Nuclear energy

Tenaga nuclear

B Heat energy

Tenaga haba

C atom U-235

atom U-235

D moving neutron

neutron yang bergerak

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49 Two types of emission from a radioactive source are separated by passing them through

a magnetic field. The deflections are shown in diagram 22

Dua jenis pancaran dari satu sumber radioaktif telah dipisahkan dengan

memancarkannya melalui medan magnet. Pemesongannya ditunjukkan seperti rajah 22

Diagram 22 / Rajah 22

What are the emissions P and Q? Apakah pancaran P dan Q ?

Emission P Emission Q

A alpha-particles gamma-rays

zarah alpha sinar gamma

B beta-particles gamma-rays

zarah beta sinar gamma

C gamma-rays alpha-particles

sinar gamma zarah alpha

D gamma-rays beta-particles

sinar gamma zarah beta

50 The half-life of a radioactive substance is 5 hours. A sample is tested and found to

contain 45.0 g of the substance. How much of the substance was present in the sample

15 hours before the sample was tested?

Separuh hayat suatu bahan radioaktif ialah 5 jam. Satu sampel diuji dan ia

mengandungi 45.0 g bahan tersebut. Berapa banyakkah bahan radioaktif dalam sample

tersebut ketika 15 jam sebelum sampel itu diuji?

A 360.0 g

B 180.0 g

C 11.25 g

D 5.62 g

END OF QUESTION PAPER

KERTAS SOALAN TAMAT

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INFORMATION FOR CANDIDATES

MAKLUMAT UNTUK CALON

1. This question paper consist of 50 questions.

Kertas soalan ini mengandungi 50 soalan.

2. Answer all questions.

Jawab semua soalan.

3. Each question is followed by either three or four options. Choose the best option for

each question and blacken the correct space on the answer sheet.

Tiap-tiap soalan diikuti oleh sama ada tiga atau empat pilihan jawapan. Pilih satu

jawapan yang terbaik bagi setiap soalan dan hitamkan ruangan yang betul pada

kertas jawapan anda.

4. Blacken only one space for each question.

Hitamkan satu ruangan sahaja bagi setiap soalan.

5. If you wish to change your answer, erase the blackened mark that you have made.

Then blacken the space for the new answer.

Sekiranya anda hendak menukar jawapan, padamkan tanda yang telah dibuat.

Kemudian hitamkan jawapan yang baru.

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

Rajah yang mengiringi soalan tidak dilukis mengikut skala kecuali dinyatakan.

7. You may use a non-programmable scientific calculator.

Anda dibenarkan menggunakan kalkulator saintifik yang tidak boleh deprogram.

8. A list of formulae is provided on page 2.

Satu senarai formula disediakan di halaman 2.