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MODUL PENINGKATAN PRESTASI TINGKATAN 5

TAHUN 2015

MAJLIS PENGETUA SEKOLAH ｍａｾｙｓｉａ＠ (KEDAH)

MODUL2

FIZIK Kertas .1

Satu jam lima belas minit

JANGAN BUKA MODUL INI SEHINGGA DIBERITAHU

1. Modu/ ini adalah dalam dwibahasa.

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

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

Modul ini mengandungi 25 halaman bercetak

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

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

1.

2.

3.

4.

5.

6.

7.

8.

9.

v-u a=--

t

v2 = u2 +2as

s = ut + _!_at2

2

Momentum= mv

F=ma

Kinetic energy I Tenaga kinetik = _!_mv2

2

Gravitational potential energy I

Tenaga keupayaan graviti = mgh

Elastic potential energy I 1

Tenaga keupayaan kenyal = - Fx 2

energy Power P=--, time

-v: p tenaga .l\.uasa, =--masa

10. Dep.sity I Ketumpatan, p =; 11. Pressure I Tekanan, p = h1Y5.

F 12. Pressure I Tekanan, p =A

13. Heat I Haba, Q = mc8

14. Heat I Haba, Q =ml.

15. pV =constant I pemalar T

sini 16. n=--

sinr

1 n=--

sinc

2

1 1 1 17. -=-+-

! u v

18. Magnifyiilg power I

Kuasa pembesaran = fo IE

19. v= f.l

20. .l= ax D

21. . Q= It

22. E=VQ

23. V=IR

24. Power I Kuasa, P =IV

Power I Kuasa, P = / 2 R

v2 Power I Kuasa, P = -

R

26. Efficiency I

27. E=mc2

28. g= 10 m s-2

29. c=3.0 x l08 ms-1

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1 A physical quantity is given by the equation b = ../2mk . The unit fork is kg m2 s-2 while the unit form is kg. What is the SI unit for b?

.Suatu kuantiti fzzik diberikan oleh persamaan b = ../2mk . Unit bagi k ialah kg m2 s-2 manakala unit bagi m ialah kg. Apakah unit SI bagi b?

A kgm2 s-2

B kgms-1

C kgm2 s-3

D kgms-2

2 Which measurement is the shortest?

Ukuran yang manakah paling pendek?

A 2.55 x 102m

B 2.55 x I06 mm

c 2.55 x 1011 µm

D 2.s5 x io-2 km

3 Diagram 1 shows a graph of p against q.

Rajah 1 menunjukkan graf p melawan q.

p

0 q

Diagram l /Rajah 1

Which equation shows the correct relationship between p and qJ

Persamaan yang manakah menunjukkan hubungan yang betul antara p dan q?

A p= 10-2q

B p=-2q-5

c p=2q+IO

D 2q=p-5

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4 Diagram 2 shows a circular track with a radius of 20 m.

Rajah 2 memmjukkan suatu trek bu/at berjejari 20 m.

y

Diagram 2 /Rajah 2

A boy started from point Y and ran round the circular track for two laps. What is the displacement of the boy when he finished his run at point Y?

Seorang hudaklelaki hermula dari titik Y dan berlari sebmryakdua pusingan mengelilingi trelc bu/at itu. Berapakah sesaran budak itu apabila ia menamatkan laritmnya di titik Y?

A Om B 40m C 126m D 252m

5 Diagram 3 shows a velocity-time graph for a moving object.

Rajah 3 menunjukkan grqf halaju-masa bagi suatu objek yang bergerak.

Velocity Halaju

Q R

s

T ....__ __ ...._ _ __.'"-_....._ _____ ....___... Time

Mas a Diagram 3 I Rajah 3

Which part of the graph shows the object moving with constant acceleration?

Bahagian graf yang manakah menunjukkan objek itu bergerak dengan pec'Ulan seragam?

A PQ C RS

B QR D ST

6 Why does a passenger lean towards the left when a car turns right?

Mengapakah seorang F.numpang melentok ke arah kiri apabila keretti membelok ke kanan?

A Because of gravity Disebabkan oleh graviti

B Becauseofreactionforce Disebabkan oleh daya tindak balas

C Because of inertia Disebabkan oleh inersia

D Because of momentum Disebabkan oleh momentum

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7 Diagram 4 shows a basket of fruits With a mass of 2 kg placed on a smooth surface. A force of 5 N acts on the basket for 6 seconds.

Rajah 4 memmjukkan sebuah bakul buah-buahan berjisim 2 kg terletak di alas permukaan licin. Satu daya 5 N bertindak ke atas bakul itu selama 6 saat.

SN

Diagram 4 I Rajah 4

What is the chatige in momentum of the basket?

Berapakah perubtihan momentum bagi bdkul itu?

A 6kgm s-1

C 15 kgms-1 B 12kgms-1

D 30kgms-1

8 Diagram 5 shows a block P of a mass of 5.0 kg being pulled along a frictionless surface by blook Q over a smooth pulley.

Rajah 5 menunjukkan blok P dengan jisim . 5 .0 kg dltarik oleh blok Q di atas suat:u permJllcaan tanpa geseran melaluisatu takal. licin.

--- Smooth pul1ey Takai licin

Diagram 5 I Rajah 5

What is the mass ofblock Q if both blocks are moving at constant velocity?

Berapakah jisim blok Qjika kedua-dua blok bergerak pada halaju malar?

A 1.0 kg B 2.5kg c 3.0kg D 5.0 kg

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9 Diagram 6 shows a Ferris wheel in an amusement park.

Rajah 6 memmjukkan suatu roda Ferris di taman hiburan..

R

Diagram 6 /Rajah 6

At which position will a person on the Ferris wheel have the largest potential energy?

Di kedudukan manakah orang di roda Ferris itu mempunyai tenaga keupayaan yang paling besar?

A P B Q C R D S

10 Diagram 7 shows a graph of force against extension for two springs P and Q that have the same original length.

Rajah 7 memmjukkan grqf daya melawan pemanjangan bagi dua spring P dan Q yang mempunyai panjang asal yang samii.

Force/N Daya IN 8

6

4

2

SpringP SpringQ

o ..___.,_...__....___. _ _._-+ Extension I cm 2 3 4 S Pemanfangan I cm

Diagram 7 I Rajah 7

Based on the graph, which statement is cottect?

Berdasarkan grqf itu, pemyat(larl manakah betul?

A Spring P is stiffer than spring Q Spring P lebih keras daripada spring Q

B Spring P stores more elastic potential energy than spring Q Spring P mmyimpan lebih banyak tenaga keupayaan ken:yal daripada spring Q

C Spring P has greater coil diameter than spring Q Spring P mempun:yai diameter lingkaran yang lebih besar daripada spring Q

D Spring P has a smaller force constant than spring Q Spring P mempun:yai pemalar daya yang lebih kecil daripada spring Q

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11 Diagram 8 shows a submarine moving up towards to the surface of the sea.

Rajah 8 menunjukkan sebuah kapal selam sedang bergerak ke arah permukaan Jaut.

Which of the relationship is correct?

Hub1J11gan manakah adalah betul?

Diagram 8 I Rajah 8

A · Buoyant force is equal to the weight of the submarine Daya apungan sama dengan berat kapal selam

B Buoyant force is larger than the weight of the Sl.lbmarine Daya apungan Jebih besar daripada berat kapal selam

C Buoyant force is smaller than the weight of the submarine Daya apungan lebih kecil daripada berat kapal selam

12 Why are water storage tanks of houses placed at a higher level?

Surface of the sea Permukaan laut

Mengapah;lh tangki. simpanan air di rumah diletakkan pada aras yang lebih tinggfl

A To prevent contamination of the water Untuk mengelakkan pencemaran air itu

B · To decrease the gravititational force on the water Untuk mengurangkan daya graviti ke atas air itu

C To increase the water pressure at the taps Untuk menambah tekanan air di pili air

· D To decrease the rate of evaporation of the water Untuk mengurangkan kadar penyejatan air itu

13 · Diagram 9 shows a round bottom flask filled with water. Rqjah 9 memmjukkan sebuah kelalang bulat yang diisi dengan air.

Hole Lubang

｜ｾ＠ＭＺｾ＠

ｾｾｫｭｧ＠ＺＱｾｾｾｾｾﾷｾＺＺＺＡＢＺＧＺＺＺＧ］ＢＺＺｾ］ＭＭ］Ｍ］］］］ＢＺＧ］Ｚｾ］Ｚ］ｾＺ］ｾＭＭＢＭＭＭＮＮＮｮ＠ｾＭＭＭＭＭＭＭＭＭＭＭﾷＭＭＭＭＭＭＭＭＭＭｾ］ｾｾｾｾｾｾｾｾｾｾｾｾｾｾｾｾＧＺｊｬＢｬＢｩｩＭｩｩＭＭＺＭＺＭＺＭＮＮＮＮＮＮＮＬＺＭＺＭＺＭＺＮＮＮＮＮＮＬＮＮＭＺＭＺＭ ---.JU

ﾷＺｾＺＮＮＺＮＮＮＺＭＭＭＺＭＺＭｾ＠ ... ｾ］ＺＺＮ＠ｾｾ＠ｾ］］ｾ＠

Diagram 9 I Rajah 9

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Which statement is false when the piston is pushed into the flask?

Pemyataan yang manakah salah apabila omboh ditolak ke da/am kela/ang itu?

A The force on the piston exerts a pressure on the surface of the water Daya ke atas omboh itu mengenakan suatu tekanan pada permukaan air

B The water in the flask is compressed Air da/am kela/ang itu dimampat

C Water spurts out of the holes in all directions Air terpancut keluar daripada lubang pada semua arah

D Pressure.is transmitted throughout the water Tekanan dipindahkan ke seluruh air

14 Diagram I 0 shows the level ofliquid P and liquid Q after some air bas been sucked out through R.

Rajah 10 menunjukkan aras cecair P dan aras cecair Q se/epas .sedikit udara di.sedut keluarme/a/ui R.

TubeY TiubY

w

R TubeZ TiubZ

LiquidP CecairP

.;;;.+---- Liquid Q CecairQ

Diagram 10IRajah10

The level ofHquid P in. tube Y is higher than the level ofliquid Q in tube Z because ·

Aras cecair P da/am tiub Y /ebih tinggi daripada aras cecair Q da/am tiub Z sebab

A the diameter of tube Y is smaller than the diameter of tube z. diameter tiub Y lebih kecil daripada diameter tiub Z.

B the density of liquid P is lower than the density of liquid Q. ketumpatan cecair P lebih rendah daripada ketumpatan cecair Q.

C the pressure of the air in W is lower than the pressure of the air in X. tekanan 'Udara di W lebih rendah dariJ!Oda tekanan udara di Y.

D the pressure on the surface ofliquid P is higher than the pressure on the surface ofliquid Q. tekanan ke atas permukaan cecair P lebih tinggi daripada tekanan ke atas permukaan cecair Q.

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15 Diagram 11 shows the water levels in three vertical tubes when air is flowing through a uniform tube.

Rajah 11 menunjukkan aras air dalam tiga tiub tegak apabi/a udara sedang mengalir melalui sebatang tiuh seragam.

Airflow --+ Aliran udara

Uniform tube Tiub seragam

.;,;,_-______________________ -.:_-_-::.:.

Diagram 11 I Rajah 11

Which diagram shows the eprrect water levels when air is flowing through a non-uniform tube?

Rajah manakah menunjukkan aras-aras air yang betul apabila udara sedang mengalir dalam tiub yang tidak seragam? A B

--

c D

.. -.,,,,;. ___________________________ -:: ｾＭ］Ｍ］Ｍ］ＭＭＭ］Ｍ］ＭＭＭ］ＭＭＭＭＭＭＭＭＭＭＭＭＭ］ＭＭ

16 Diagram 12 shows a car jack used in a tyre workshop .

. Rajah 12 menunjukkan sebuah jek kereta yang digunakan di sebuah bengkel tayar.

Diagram 12/Rajah12

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Which principJe is used to operate the car jack?

. Prinsip yang manakah digunakan 1Dltuk mengendalikan jek kereta itu?

A Principle of conservation of momentum Prinsip Keabadian Momentum

B Archimedes' principle Prinsip Archimedes

C Bernoulli's principle Prinsip Bernoulli

D PascaJ's principle Prinsip.Pascal

17 What concept is used when a mercury thermometer measures temperature?

Apakah konsep yang digunakan semasa termometer merkurimengukw suhil!

A Vaporisation Pengewapan

B Fusion Pelakuran

C Heat capacity Muatanhaba

D Thermal equilibrium Keseimbangan terma

18 What happens to the water molecules when water is heated?

Apakah yang aka,, berlaku kepada molekul-molekul air apabila air dipa110$kan?

A The size of the molecules increases Saiz molekul-molekul air bertambah

B The kinetic energy of the water molecules increases Tenaga kinetik: mo/ek:ul-molekul air.bertambah

C The potential energy of the water molecules decreases Tenaga keupayaan molekul-molekul air berkurang

. D The distance between the water molecules decreases Jarak antara molekul•molek:ul dalam air berkurang

19 The specific latent heat of vaporisation of water is 2.26 x l 06 J kg-1•

Which statement is correct?

Haba pendam tentu pengewapan bagi air ialah 226 x 106 J kg-1•

Pemyataan manakah bend?

A 2.26 x 106 J of heat energy is required to raise the temperature of water to 100 °C. Sebanyak 2.26 x 106 J tenaga haba diperlukan imtuk menaikkan suhu air kepada 100 °C

B 226 x 106 J of heat energy is required to change water to steam Sebanyak 2. 26 x 106 J tenaga haba diperlukan untuk mengubah air menjadi siim

C 2.26 x 106 J of heat energy is required to boil the water Sebanyak 2. 26 x 106 J tenaga diperlukan untuk mendidihkan air

D 2.26 x 106 J of heat energy is required to boil I kg of water to steam . Seban:yak2. 26 x 106 J tenaga diperlukan 1Dltuk lkg air mendidih menjadi stim

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20 The air pressure in the tyre of a car is 210 kPa at an initial temperature of25 °C. After a longjourney the air temperature has increased to 35 °C. What is the air pressure in the tyre after the journey?

Tekanan udara di dalam tayar sebuah kereta ialah 210 kPa pada suhu awal 25 °C. Selepas suatu perjalanan yangjauh suhu udara itu meningkat kepada 35 °C. Berapakah tekanan udara di dalam tayar selepas perjalanan tersebut?

A 150k:Pa B 217kPa C 294k:Pa D 437kPa

ll Which graph shows the relationship between the volume and temperature of a fixed mass of gas at constant pressure?

Graf yang manakah menunjukkan hubungan antara isipadu dan suhu bagi satujisim tetap gas pada tekanan malar?

A Vlm3 B V/m3

0 0!°C 0

c Vlm3 D

V!m3

0 () !°C 0

22 Diagram 13 shows an object placed in front of a plane mirror. Which is the correct position of its image?

Rajah 13 menunjukkan satu objek diletakkan di hadapan sebuah cermin satak Di manakah kedudukan yang betul bagi imejnya?

Object Objek

Plane mirror Cermin satah

A \

.! '• •• .. .,

B c ｬＧｾ＠

. ｾＩ＠.. '• •• '• •• •• '• '•

40cm 20cm 20cm 20cm 20cm


11

D· ,• Ｍｾ＠ •• • • •• '•

()/°C

.0/°C

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23 Diagram 14 shows the path of a laser beam through an aquarium filled with water.

Rajah l 4 menunjukkan lintasan alur cahaya laser melalui sebuah akuarium yang berisi air.

Laser pointer Pemmjuk laser


Name the light phenomena that occur at X and Y.

Namakanfenomena cahaya yang berlaku pada X dan Y.

x y

A Refraction Reflection Pembiasan Pantulan

B Reflection Refraction Pantulan Pembiasan

c Refraction Total internal reflection Pembiasan Pantu/an ddlam penuh

D Total internal reflection Refraction Pantu/an dalam penuh Pembiasan

Laser beam """""---Alurcahaya laser

24 Diagram 15 shows an object, 0, that lies underneath a glass block and its image, I, is observed from a position directly above the glass block.

Rajah 15 menunjukkan satu objek, 0, berada di bawah sebuah hlok kaca dan imejnya, I, diperhatikm.i dari kedudukan tegak di atas blok kaca itu. ·

Glass block ----1

Blokkaca Q

-+ 0

Diagram 15 /Rajah 15

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The refractive index. n is determined by

Indeks biasan, n ditentukan oleh

A

c

n= Q R

R n= Q+R

B

D

. Q+R n= R

_ _Q_ n- Q+R

25 Diagram 16 shows an astronomical telescope at nonnal adjustment. Rajah 16 ｭｾｪｕｫｫ｡ｮ＠ sebuah teleskop astronomi dalam pelarasan normal.

Objective lens : Power = 2 D Kanta objek: Kuosa = 2 D

Eyep.iece : Power= 20 D Kanta mata : Kuasa = 20 D

Diagnim 16 /Rajah 16

What is the length of the astronc;>mical telescope?

Berapakah panjang teleskop astronomi itu?

A 4Scm . B 55 c1:ll C 65cm D 75cm

26 Which of the following states the correct applications of concave and. convex mirrors?

Yang manakah menyatakan aplikosi cermin celamg dan cembimg dengan /Jetull

Concave mirror Cermin cekung

A Mirror at a sharp comer of the road Cermin di selekoh tajam di jalan raya

B Dentist's mirror Cermin pergigian

C · Dentist's mirror Cermin pergigian

D Mirror at a sharp comer of the road Cermin di selekoh tajam di jalan raya

13

Convex mirror Cemtin cembung

Rear-view mirror in a car Cermin pantang belakang dalam kereta

Make-up mirror Cermin solek

Rear-view mirror in a i;:ar

Cermin pai1dang belakang dalam kereta

Make-up mirror Cermin solek

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27 Diagram 17 shows a tilted water tank and a plane vibrator

&yah 17 menunjukkan sebuah tangki air yang dicondongkan dan satu penggetar satah.

Diagram 17 / &yah 17

Which wave pattern is formed when the plane vibrator vibrates?

Corak gelombang manakah dibentuk apabila penggetar satah itu hergetar?

A

111 I I I ·

B

111111 ·

c

I · I 1111 •

D

111 111 • . 28 Diagram 18 shows an interference pattern of water waves from two coherent sources P and Q.

Rajah 18 menunjukkan corak interferens gelombang air daripada dua sumber k:oheren P dan Q.

Key: Kekunei : Crest

Puncak

--------- Trough Lemhangan

Diagrani 18 / &yah 18

At Which point, A, B, C or ｄｾ＠ will a floating object be stationary?

Pada titik yang manakah, A, B, C atau D. suatu objek akan terapung dengan pegun?

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29 Diagram 19 shows a displacement-time graph of an oscillating system that experiences damping .

. Rajah I 9 menunjukkan satu graf sesaran-masa bagi suatu sistem ayunan yang mengalami pelembapan.

Displacement Sesaran


Which quantity does not change?

Kuantiti yang manakah tidak herubah? .

A Displacement Sesaran

B Frequency of oscillation Frekuensiayunan

C Energy of oscillation Tenaga ayunan

D Amplitude of oscillation Amplitud ayunan

Time Mas a

30 Diagram 20 shows the location of a house where radio waves from the transmitting station .can be received by a radio in the ｨｯｵｳ･ｾ＠

Rajah 20 menunjukkan lokasi sebuah rumah yang mana gelombang radio daripada stesenpenumcar bolehditerima oleh sebuah radio di dalam rumah.

Transmitting station Stesen pemancar

Thii; phenomenon is due to

Fenomena ini disebabkan oleh

A Reflection Pantulan

B Refraction Pembiasan

c Diffraction Pembelauan

D Interference Interferens


15

House Rum.ah

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31 Diagram 21 shows the interference patterns for three monochromatic light sources X, Y and Z.

Rajah 21 menunjukkan corak inteiferens bagi tiga sumber cahaya monokromatik X, Y dan Z.

x y

Diagram 21 / Rajah21

What are the colours of the monochromatic light sources X, Y arid Z?

Apakah wama bagi sumber cahaya monokromatik X, y·dan Z? ·

x y z A Blue Yellow Red

Biru Kuning Mer ah

B Yellow Blue Red Kuning Biru Mer ah

c Red Yellow Blue Mer ah Kuning Biru

D Blue Red Yellow Biru Mer ah Kuning

z

32 Which arrangement of electromagnetic waves in order of increasing wavelength is correct?

SUSWlan yang manakah betld bagi gelombang elekromagnet dalam susunan panjang gelombang yang semakin bertambah?

A Radio waves Visible light X-ray Gelombang radio Cahaya.nampak SinarX

B Radio waves X•rays Visible light Gelombang radio SinarX Cahaya nampak

c X-rays Visible light Radio waves SinarX Cahaya nampak Gelombang radio

D X-rays Radio waves Visible light SinarX Gelombang radio Cahaya nampak

33 Diagram 22 shows a polystyrene ball, X, coated with metallic paint oscillating between two metal plates connected to an extra high tension (EHT) supply.

Rajah 22 memmjukkan bola polisterena, X. yang disaluti cat Jogam sedang berayun di antara dua plat logam yang disambungkan kepada bekalan voltan lampau tinggi (VL1).

L----Nylon thread I Benang nilon

Metal plate P I Plat logam P

+EHf /H'LT

Plastic block I Blok plastik

Diagram 22 ! Rajah 22

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Which change will increase the speed of oscillation of the polystyrene ball, X?

Perubahan manakah akan meningkatkan kelajuan ayunan bola polistirena, X?

A Using a polystyrene ball of bigger mass · Menggunakan bola polistirena yang berjisim lebih besar

B Increase the distance between plate P and Q Menambahkan jarak antara plat P dan Q

C Hanging the polystyrene ball with a longer nylon thread Gantungkan bola plistirena dengan benang nilon yang lebih panjang

D Increase the voltage of the EHT supply connected to plate P Menambahkan voltan bekalan VLTyang disambtmgkan kepadaplat P

34 Which changes will cause the :reSistance of a wire to become doubled?

Perubahan manakah akan menyebabkan rintangan satu dawai menjadi dua kali ganda?

A

B

c D

Length ofwire Panjang dawai.

No change I Tiada perubahan

Halved I Menjadi separuh

Doubled I Berganda

Doubled I Berganda

Diameter of wire Diameter dawai.

Halved I Menjadi separiPI

No changes I TiadaJ>enibahan

Halve I Menjadi separuh

No changes I Tiada pe'ni/Jahan

35 Diagram 23 shows four resistors connected in an electric circuit.

Rajah 23 menunjukkan empatperintang yang disambungkan dalam suatu iitar elektrik.


Which statement is correct?

· Penyataan manakah adalah betul?

A Current in R1 = Current in R3

Arus dalam R1 = Arus dalam R3

B Current in R3 = Current in R. Arus dalam R3 = Arus dalam R.

C Potential difference across R1 =Potential difference across R2

Beza keupayaan merentasi R1 =Beza keupayaan merentasJ R2

D Potential difference across R2 =Potential difference across R3

Beza keupayaan merentasi R2 = Beza keupayaan merentasi R3

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36 Diagram 24 shows a set of Christmas tree lighting circuit containing ten lamps in series.

Raj.ah 24 menunjukkan litar lampu pokok Krismas yang mengandungi sepuluh buah /ampu bersiri.

Power supply '---'1-1--' Bekalan kuasa

3 6 7 8 9 10


When the power supply is switched ｯｾ＠ it is found that the lamps 1 to 9 are brightly Jit but lamp 10 does not light up.

Apabila bekalan kuasa dihidupkan. didapati lampu 1 hingga 9 bemyala dengan terang, tetapi lampu 10 tidak bernyala.

Which statement explains why lamp 10 does not light up?

Penyataan mmuikah menerangkan mengapa lampu I 0 tidak bemyala?

A The resistance of lamp 10 is too low Rintangan lampu I 0 terla/u redah

B Filament of lamp 10 is broken Filamen lampu 10 telah putus

C The wire connecting lamp I 0 to the circuit is broken Dawai yang menyambung lampu 10 kepada litar telah putus

D The currect flowing through lamp 10 is blocked by lamp l to 9 Arus yang mengalir mela/ui lampu 10 dihalang oleh lampu 1 hingga 9 · ·

37 Diagram 25 shows a battery of e.m.f. 3 V and internal .resistance 1 0 connected to resistors of 9 0 and 1 0 in parallel and a switch K.

Rajah 25 menunjukkan satu bateri dengan dg.e. 3 V dan rintangan dalam 1 0 disambungkan kepada perintang 9 0 dan 1 0 secar(J selari dan satu suis K.

..-----..( v 1------.

_Diagram 25 I Rajah 25

What happens to the reading of voltmeter when switch K is closed?

Apakah yang berlaku kepada bacaan voltmeter apabila suis K ditutup?.

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A Decreases Berkurang

B Increases Bertambah

c Rem,ains unchanged Tidak berubah

38 Dia.gram 26 shows two parallel wires, ·each carrying a current of 5 A.

Rajah 26 memmjukkan dua dawai selari, setiap satu membawa ahJs 5 A.

SA t is A

B• D•

.C•


At which point will the resultant magnetic field be the strongest?

Di titik manakah medan magnet paduan paling tinggll

39 Diagram 27 shows a wire carrying a current between two pairs of magnets.

Rajah 21 menunjukkan seutas dawai mengalirkan arus <mtara dua pasang magnet.

® Current into the paper Arus ke dalam kertas


What is the direction of the resultant force on the wire?

Apakah arah daya bersih ke atas dawai ittll

A B

19

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40 Diagram 28 shows an electric generator.

Rajah 28 menunjukkan sebuah penjana elektrik

Coil · Gegelung

<-b I I

r-111JC:,J.)r-,:=:=:=:=:= Slip ring Gelang gelincir


Which graph shows the output voltage against time when the coil rotates?

Graf mand/cah meltlJnjufikan voltan output melawan masa apabila gegelung berputar?

A

c

VoJtage Voltan

Voltage Vo/tan

B

Time Mas a

D

Time Mas a

20

Voltage Voltan

0

Voltage Voltan

0

Time Maso

Time Masa

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41 Diagram 29 shows a bar magnet being pushed towards a solenoid.

Rajah 29 menunjukkan sebatang magnet bar ditolak ke arah sebuah solenoid.

Bar magnet

[ -1111111i-.____I _I ｾ＠Diagram 29 /Rajah 29

What is produced by the solenoid when the bar magnet is moving towards it?

Apakah dihasilkan oleh solenoid itu apabila magnet bar sedang bergerak ke arahrrya?

A Induced e.m.f. only D.g.e. aruhan sahaja

B Induced current and magnetic field only Arus aruhan dan medan magnet sahaja

C Induced e.m.f. and induced current only D.g.e. aruhan dan arus aruhan sahaja

D Induced e.m.f., induced current and magnetic field D.g.e. aruhan, arus aruhan dan medan magnet

42 What are the characteristics of the voltage and current for efficient transmission of electricity?

Apakah ciri-ciri voltan dan arus dalam penghantaran elektrik yang cekap?

Voltage Current Voltan Arus

A Low voltage Small cWTent Voltan rendah Aruskecii

B Low voltage Large current Voltan rendah Arus besar

c High voltage Small current Vo/tan tinggi Arus kecil

D High voltage Large current Vo/tan tinggi Arus besar

43 A cathode ray oscilloscope cannot be used to

Osiloskop sinar katod tidak boleh digunakan untuk

A display waveform memaparkan bentuk gelombang

B measure voltage mengukur voltan

C · measure the wavelength of an electric signal mengukur panjang gelombang satu isyarat elektrik

D measure the time between two electric pulses mengukur masa antara dua denyut elektrik

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44 Diagram 30 shows a combination of logic gates.

Rajah 30 menunjukkan suatu kombinasi get logik.

p

Q


Which is the correct truth table for the logic gates?

Jadual kebenaran yang manakah betul bagi get-get logik tersebut!

A B

p Q x p 0 0 0 0 0 1 1 0 I 0 0 I I 1 I I

45 · A diode can be used

Suatu diod boleh digunakan

A as a rectifier sebagai rekti.fier

B asaswitch sebagai suis

C to amplify current untulc menguatkan arus

Q 0 1 0 I

D to smoothen output current untuk meratakan arus ouput

c x p Q x 1 0 0 0 0 0 I 0 1 1 0 1 0 1 1 1

D

p Q x 0 0 1 0 1 1 1 0 0 1 I 0

46 Diagram 31 shows two diodes connected in parallel in a circuit with an alternating power supply.

Rajah 31 menunjukkan dua diod disambungkan secara selari dalam litar yang m.ernpunyai bekalan arus ulangalik.

s p

j Q


Which bulb will light up when the switch S is switched on?

Mento/ manakah akan bemyala apabila suis S dihidupkan?

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A Ponly Psahaja

B PandQonJy P dan Q sahaja

c PandRonly P dan R sahaja

D P, QandR P,QdanR

47 Which. radioactive sample is suitable to be injected into the blood vessel to detect the blood clots?

Sampel radioaktif yang manakah sesuai untuk distintik ke dalam sa/ur darah untuk mengesan darah bekl/?

Radioactive sample Half-lif'e Radiation emitted Sampel radioaktif Separflh· hayat Sinaran yang dipanc(ll'

A 8hours Alpha particles 8jam Zarahalfa

B 15 hours Beta particles 15 jam Zarah beta

c l week Beta particles 1 minggu Zarah beta

D 1 month Gamma rays 1 bulan Sinargama

48 Diagram 32 shows the paths of radiation from a radioisotope in ail electric field.

Rajah 32 memmjukkan laluan sinaran daripada suatu radioisotop dalam suatu medan elektrik.

Whatatel, Kand L?

ApakahJ, Kdan L?


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49

J K L

A Alpha particles Beta particles Gamma rays Zarahalfa Zarah beta Sinargama

B Alpha particles Gamma rays Beta particles Zarahalfa Sinargama Zarah beta

c Beta particles Gamma rays Alpha particles Zarah beta Sinargama Zarahalfa

D Beta particles Alpha particles Gamma rays Zarah beta Zarahalfa Sinargama

Diagram 33 shows the decay of radium (Ra)to actinium (Ac).

Rajah 33 menunjukkan reputan radium (Ra) kepada aktinium (Ac).

ＲＲＸｒ｡ｾ＠ A. c+/J 89


What is the proton number of radium and the nucleon nwnber of actinium?

Berapakah nombor proton radium dan nombor nukleon aktinium?

A B c D

Proton number of radium Nombor proton radium

88 88 90 90

Nucleon number of actinium Nomhor nukleon aktinium

224 228 228 232

50 The half-life of a radioactive substance is 10 hours. A samp.le is tested and found to contain 40 g of the substance. How much of the substance was present in the sample 20 hours before the sample was tested?

Separuh hayat suatu bahan radioaktif ialah 10 jam. Satu sampel diuji dan didapati mengandungi 40 g daripada bahan itu. Berapakah jumlah bahan yang wujud dalam sampel itu dalam masa 20jam sebelum sampel itu diuji?

A 20g B 80g c 120g D 160g

End of Question Paper

Kertas Soalan Tamat

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TAHUN 2015

MAJLIS PENGETUA SEKOLAH MALAYSIA (KEDAH)

MODUL 2

FIZIK

Kertas 1

Peraturan Pemarkahan

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PHYSICS

PAPER MARKS Paper 1 50 Paper 2 100 Paper 3 40

Total 190

Jumlah markah diskalakan kepada 100%

Paper 1

1 B 26 C 2 D 27 A 3 C 28 D 4 A 29 B 5 A 30 C 6 C 31 C 7 D 32 C 8 B 33 D 9 C 34 D 10 A 35 B 11 B 36 A 12 C 37 A 13 B 38 B 14 B 39 D 15 A 40 A 16 D 41 D 17 D 42 C 18 B 43 C 19 D 44 A 20 B 45 A 21 A 46 D 22 B 47 B 23 C 48 C 24 D 49 B 25 B 50 D

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TAHUN 2015


MODUL 2

FIZIK

Kertas 2


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2

BAHAGIAN A

Soalan Cadangan Jawapan Markah 1(a) longitudinal wave 1 (b) reflection 1 (c) (i) No change 1

(ii) Decreases 1 4

2(a) Latent heat 1 (b) Does work to break the bonds between the molecules //

Weaken the forces of attraction between molecules 1

(c) does not change 1 (d) (i) Q1 is smaller than Q2 1

(ii) Work is done to increase the distance between the molecules 1 5

3(a) (i) direct current 1 (ii) 1

(b) (i) Correct shape 2 complete cycles

1 1

(ii) 4 complete cycles peak value doubled

1 1

6 4(a) Ratio of the potential difference to the current 1 (b) (i) 1.4

1.2

1.17 Ω

1 1

(ii) Increases 1 (iii) filament lamp 1

(c) 1.25 × 1.5 1.875 W

1 1

7 5(a) (i) Decreases 1

(ii) The number of unstable atoms is decreasing // The graph has a negative gradient 1 (b) (i) 20 hours

2 hours 1 1

(ii) Y 1 (iii) The shorter the half-life, the faster the rate of decay. 1

(c) (i) X 1 (ii) Longer half-life / slower rate of decay gives enough time to locate the leakage 1

8 6(a) Degree of hotness of an object 1 (b) (i) The initial temperature of the water in Cup X > cup Y 1

(ii) Cup X : Temperature decreases with time Cup Y : Temperature increases with time

1

(iii) Cup X : Heat is released to the surroundings Cup Y: Heat is absorbed from the surroundings

1

(iv) When the temperature of an object decreases, heat is transfered from the object to the surroundings // When the temperature of an object increases, heat is transfered from the surroundings to the object

1

(c) Thermal equilibrium 1 (d) (i) Shorter time 1

(ii) Cooking oil has a smaller specific heat capacity 1 8

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3

Soalan Cadangan Jawapan Markah

7(a) The exhaust gases move downwards with a large momentum The rocket gains an equal momentum upwards

1 1

(b) 0 = 152 + 2(-10) h // m × 10 × h =

12 × m × 152

h = 11.25 m

1 1

(c) (i) Aerodynamic // Streamline Reduce air resistance

1 1

(ii) High Larger upward thrust / force // Higher water speed

1 1

(iii) Fins near the tail of the rocket Prevent the rocket from spinning

1 1

10 8(a) Interference 1 (b) Increases 1 (c) (i) Oscillates up and down with a large amplitude 1

(ii) Constructive interference occurs at P 1 (d) Distance increases

Speed of the waves increase Wavelength is longer

1 1 1

(e) (i) In front of the microphone Avoid disturbance // to prevent the sound from speakers being amplified again by the microphones

1 1

(ii) Further distance between the speakers So that positions of constructive and destructive interference are closer together until they are hardly noticeable.

1 1

(iii) S 1 12

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BAHAGIAN B

Soalan Cadangan Jawapan Markah 9(a) Depth // density // acceleration due to gravity 1 (b) (i) Size : P < Q

Depth : P > Q Pressure : P > Q

1 1 1

(ii) The bigger the depth, the smaller the size of the air bubble 1 (iii) The bigger the depth, the higher the pressure on the air bubble 1 (iv) The higher the pressure, the smaller the volume 1

(c) When the volume of a gas is decreased, the same number of molecules move in a smaller space. The molecules collide more frequently with the walls of the bubble. A larger force acts on the walls of the bubble. Therefore pressure increases.

1 1 1

(d) Aspect Suggestion Explanation Attire Water proof //

Tight fitting Does not become wet // Does not absorb water // Less water resistance

Extra equipment Flippers Help the diver to swim under water

Gas tank Light material Smaller size Contains oxygen rich air at high pressure

Smaller weight // Smaller load for the diver to carry Reduces the weight of the tank Diver can stay longer under water

Note : Extra equipment includes mask, pressure gauge, dive watch, dive light, buoyancy control device, signalling device etc

1+1

1+1

1+1

1+1

1+1

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Soalan Cadangan Jawapan Markah 10(a) A substance that has a conductivity between the conductivity of an insulator and

a conductor / metal 1

(b) (i) To increase the conductivity // To reduce the resistivity 1 (ii) Doping with boron produces a p-type semiconductor

Majority charge carriers are holes Doping with phosphorus produces a n-type semiconductor Majority charge carriers are electrons

1 1 1 1

(c) During the first half cycle : the resistance of the diode is low a current flows in the circuit // the diode is forward biased During the next half cycle : the resistance of the diode is very high no current flows in the circuit // the diode is reverse biased

1 1 1 1

(d) thermistor replaces the resistor

resistor replaces the LDR bell replaces the bulb

complete circuit When the surrounding is hot : the resistance of the thermistor decreases the potential difference across the thermistor decreases the potential difference across the resistor increases the base current increases the transistor is switched on the collector current flows

1 1 1 1 1 1 1 1 1 1

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BAHAGIAN C

Soalan Cadangan Jawapan Markah 11(a) (i) Image that cannot be formed on a screen 1

(ii) Object between lens and F

Rays parallel to principal axis passing through F Ray passing through optical centre

Image

1 1 1 1

(b) Aspect Suggestion Explanation Cooling fan Larger diameter Bigger volume of air to cool

the lamp Power of lamp Higher power More light energy to produce

a brighter image Orientation of coloured glass

Inverted To produce an upright image on the screen

Distance between the coloured glass picture and the projector lens

Between f and 2f

To produre a real and magnified image

X is the most suitable - cooling fan with large diameter - high power lamp - inverted coloured glass picture - coloured glass picture at a distance between f and 2f

1+1

1+1

1+1

1+1 1 1

(c) (i) v = 36

36

1

12

11 +=f

f = 9 cm

1 1 1

(ii) 3612

3

1 1

20

O

F F

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7

Soalan Cadangan Jawapan Markah 12(a) (i) The production of an electromotive force / current in a conductor when it cuts

magnetic flux 1

(ii) The alternating current in the primary coil produces a changing magnetic field The magnetic field cuts the secondary coil The secondary coil has less turns than the primary coil A smaller voltage is induced across the secondary coil

1 1 1 1

(b) (i)

P

S

P

S

N

N

V

V=

3200

80

240S =

V

VS = 6 V The output voltage of the transformer is less than the operating voltage of the bulb

1 1 1

(ii) IP VP = IS VS IP × 240 = 0.75 × 12 IP = 0.0375 A

1 1

(c) Aspect Suitability Explanation Resistivity Low Lower the rate of heat loss Core 8-shape Magnetic field produced by

the primary passes completely through the secondary

Winding of coils Primary and secondary coil over HK

Less leakage of magnetic flux

Lamination of core More thin layers Reduces eddy currents S is the most suitable - low resistivity - 8-shape core - Primary and secondary coil over HK - More thin layers of soft iron lamination

1+1 1+1

1+1

1+1 1 1

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TAHUN 2015


MODUL 2

FIZIK

Kertas 3


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2

BAHAGIAN A

Soalan Cadangan Jawapan Markah 1(a) (i) Mass // m 1

(ii) Angle of deflection // θ 1 (iii) Mass of rod // Length of rod 1

(b) (i) β : 55o, 44o, 36o, 30o 1 (ii) θ : 35o, 46o, 54o, 60o [4 correct: 2 marks; 3 correct: 1 mark] 2 (iii) tan θ : 0.700, 1.036, 1.376, 1.732 1 (iv) Table with 4 columns m, β, θ, tan θ with correct unit for m

Consistent number of d.p. for m and tan θ

m / g β θ tan θ 5.0 71 o 19 o 0.344 10.0 55 o 35 o 0.700 15.0 44 o 46 o 1.036 20.0 36 o 54 o 1.376 25.0 30 o 60 o 1.732

1 1

(c) tan θ at the y-axis, m at the x-axis Correct unit for m Suitable scale for both axes 5 points plotted correctly [4 points correct: ] Best straight line Size of graph 7 : 5 marks 5-6 : 4 marks 3-4 : 3 marks 2 : 2 marks 1 : 1 mark

5

(d) tan θ is directly proportional to m 1 (e) The eye must be perpendicular with the scale of the protractor 1

16 2(a) (i) v decreases linearly with t 1

(ii) Show extrapolation to v = 0 t = 13.6 s Acceptable range of t = 13.4 to 13.8

1 1

(iii) A sufficiently large triangle drawn Correct substitution based on candidate’s triangle Correct answer with unit, h = –2.5 m s–2

1 1 1

(b) (i) A = ( )8 1434

2

1 + // ( )1482082

1 ×+

××

A = 192 m

1 1

(ii) ( )

×−+=2

85.2272

2

s

s = 192 m

1 1

(c) Gradient increases 1 (d) Repeat the experiment and calculate the average value 1

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3

BAHAGIAN B

Soalan Cadangan Jawapan Markah 3(a) The temperature of a gas affects its volume //

The volume of a gas depends on its temperature 1

(b) The higher the temperature of a gas, the bigger the volume of the gas 1 (c) (i) To investigate the relationship between the temperature of a gas and its volume 1

(ii) Manipulated variable : temperature Responding variable : volume // length of air column Constant variable : mass // pressure

1 1

(iii) Glass tube, ruler, beaker, thermometer, tripod stand, wire gauze, bunsen burner, water, ice, sulphuric acid

1

(iv) Labelled diagram showing set up of apparatus that will function

1

(v) 1. The water is heated slowly until it reaches a temperature of θ = 20 oC 2. The length of the air column, L, is taken and recorded. 3. Steps 1 and 2 are repeated for temperatures of 30 oC, 40 oC, 50 oC, 60 oC

1 1 1

(vi) θ / oC L / cm

20 30 40 50 60

1

(vii) A graph of L against θ is drawn. 1 12

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4

Soalan Cadangan Jawapan Markah

4(a) The number of turns of wire in the secondary coil affects the output voltage 1 (b) The greater the number of turns of wire in the secondary coil, the greater the

output voltage 1

(c) (i) To investigate the relationship between number of turns of wire in the secondary coil and the output voltage

1

(ii) MV : number of turns of wire in secondary coil, N RV : output voltage, V CV : number of turns of wire in the primary coil

1 1

(iii) 12 V AC power supply, C-shaped soft iron cores, clip, 900 turn primary coil, secondary coils of 100, 200, 300, 400 and 500 turns, AC voltmeter, connecting wires

1

(iv) Labelled diagram showing set up of apparatus that will function

1

(v) 1. Use 900-turns copper coil as the primary coil and 100 turns of secondary coil of a transformer.

2. The switch is turned on and the output voltage is measured by using a voltmeter.

3. Steps 1 and 2 are repeated by using copper coil with 200 turns, 300 turns, 400 turns and 500 turns as the secondary coil and same number of primary coil.

1 1 1

(vi) Number of turns of wire in

secondary coil, N Output voltage, V / V

100 200 300 400 500

1

(vii) A graph of V against N is drawn 1 12

V

Soft iron core Secondary coil Primary coil

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