modul fizik cakna kelantan spm 2014 k2 set 2 dan skema

47
SULIT 4531/2 4531/2 [Lihat sebelah] 2 JABATAN PENDIDIKAN KELANTAN Nama : …………………………………………………. 4531/2 FIZIK Tingkatan : ……………………………………………. Kertas 2 2 ½ jam FIZIK – SET 2 KERTAS 2 Masa : 2 Jam 30 minit JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU 1. Kertas soalan ini adalah dalam dwibahasa. 2. Soalan dalam bahasa inggeris mendahului soalan sepadan dalam bahasa Melayu 3. Calon dibenarkan menjawab keseluruhan atau sebahagian soalan sama ada dalam bahasa Inggeris atau bahasa Melayu. 4 Calon dikehendaki membaca maklumat di halaman belakang kertas soalan ini Kertas Ujian ini mengandungi 37 muka surat bercetak ……..…./LIHAT SEBELAH Untuk Kegunaan Pemeriksa Bahagian Soalan Markah Penuh Markah Diperolehi A 1 4 2 5 3 6 4 7 5 8 6 8 7 10 8 12 B 9 20 10 20 C 11 20 12 20 Jumlah

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Page 1: Modul fizik cakna kelantan spm 2014 k2 set 2 dan skema

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JABATAN PENDIDIKAN KELANTAN

Nama : …………………………………………………. 4531/2 FIZIK Tingkatan : ……………………………………………. Kertas 2 2 ½ jam

FIZIK – SET 2 KERTAS 2

Masa : 2 Jam 30 minit JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU 1. Kertas soalan ini adalah dalam dwibahasa. 2. Soalan dalam bahasa inggeris mendahului soalan sepadan dalam bahasa Melayu 3. Calon dibenarkan menjawab keseluruhan atau sebahagian soalan sama ada dalam bahasa Inggeris atau bahasa Melayu. 4 Calon dikehendaki membaca maklumat di halaman belakang kertas soalan ini

Kertas Ujian ini mengandungi 37 muka surat bercetak ……..…./LIHAT SEBELAH

Untuk Kegunaan Pemeriksa

Bahagian

Soalan

Markah Penuh

Markah

Diperolehi

A

1 4

2 5

3 6

4 7

5 8

6 8

7 10

8 12

B

9 20

10 20

C

11 20

12 20

Jumlah

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The following information may be useful. The symbols have their usual meaning. Maklumat berikut mungkin berfaedah. Simbol-simbol mempunyai makna yang biasa. 1. a = v – u 16. Power, P = energy t time 2. v2 = u2 + 2 as 17. V = IR 3. s = ut + 1 at2 18. Power, P = IV 2 Kuasa 4. Momentum = mv 19. Ns = Vs

Np Vp 5. F = ma 20. Efficiency = Is Vs x 100 % (kecekapan) Ip Vp 6. Kinetic energy = 1 mv2

Tenaga kinetik 2 21. 1 = 1 + 1 f u v 7. Gravitational potential energy = mgh 22. n = sin i Tenaga keupayaan graviti sin r 8. Elastic potential energy = 1 Fx 23. n = Real depth

Tenaga keupayaan kenyal 2 Apparent depth

9. = m 24. λ = ax V D

10. Pressure, P = hg. 25. Q= It Tekanan 11. Pressure, P = F 26. E = I (R + r) Tekanan A

27. eV = ½ mv2

12. Heat, Q = mc Haba 28. g = 10 ms-2

13. PV = Constant (pemalar) 14. E = m c2

15. v = f

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SECTION A

BAHAGIAN A

[60 marks]

[60 markah]

Answer all questions in this section.

Jawab semua soalan dalam bahagian ini.

1. Diagram 1.1 shows a micrometer screw gauge.

Rajah 1.1 menunjukkan sebuah tolok skru mikrometer.

Diagram 1.1

Rajah 1.1

(a) Name the part labeled X.

Namakan bahagian berlabel X.

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

[1 mark]

[1 markah]

(b) State the function of X.

Nyatakan fungsi X.

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

[1 mark]

[1 markah]

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(c) Diagram 1.2 shows the reading of the micrometer screw gauge when the

jaws is closed.

Rajah 1.2 menunjukkan bacaan pada tolok skru mikrometer bila rahang

ditutup.

Diagram 1.2

Rajah 1.2

Based on Diagram 1.1 and 1.2 :

Berdasarkan Rajah 1.1 dan 1.2 :

(i) Name the type of error occur.

Namakan jenis ralat yang terjadi.

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

[1 mark]

[1 markah]

(ii) State the value of actual reading of the micrometer screw gauge.

Nyatakan nilai bacaan sebenar pada tolok skru micrometer.

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

[1 mark]

[1 markah]

0 2

30

25

35

5

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2. Diagram 2.1 shows a plumber is detecting the leaking of water pipe under the

ground. A little radioisotope Sodium-24 is dissolved in the water that flows in

metal pipe.

Rajah 2.1 menunjukkan pekerja paip sedang mengesan kebocoran paip air di

bawah tanah. Sedikit radioisotop Natrium-24 dilarutkan ke dalam air yang

mengalir dalam paip logam.

Diagram 2.1

Rajah 2.1

(a) What is the meaning of radioisotope ?

Apakah yang dimaksudkan dengan radioisotop ?

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

[1 mark]

[1 markah]

(b) Sodium-24 emits the radiation that can penetrates the ground but cannot

penetrates the metal pipe .

Natrium-24 memancarkan pancaran yang boleh menembusi tanah tetapi

tidak boleh menembusi paip logam.

Radioactive emission Pancaran radioaktif

Radioactive emission Pancaran radioaktif

Metal pipe Paip logam Leakage pipe

Paip bocor

Water air

Ground Tanah

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(i) Name the radiation emitted by the sodium-24.

Namakan pancaran yang dikeluarkan oleh natrium-24

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

[1 mark]

[1 markah]

(ii) Suggest a detector that can be used to detect the radioactive

emission in b(i).

Cadangkan alat pengesan yang boleh mengesan pancaran

radioaktif dalam b(i).

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

[1 mark]

[1 markah]

(iii) State how a radioactive emission detector can show the correct

area where the pipe leaks.

Nyatakan bagaimana pengesan pancaran radioaktif itu boleh

menunjukkan tempat yang betul berlaku kebocoran.

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

[1 mark]

[1 markah]

(c) State one other characteristic of Sodium-24 which is suitable to be used as

a tracer in water.

Nyatakan satu ciri lain bagi Natrium-24 yang menyebabkan ia sesuai

untuk digunakan sebagai bahan surihan dalam air.

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

[1 mark]

[1 markah]

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3. Diagram 3.1 shows p-type and n-type semiconductor combined together.

Rajah 3.1 menunjukkan semikonduktor jenis-p dan semikonduktor jenis-n di

camtumkan bersama.

Diagram 3.1

Rajah 3.1

(a) Name the electronic device in Diagram 3.1.

Namakan peranti elektronik dalam Rajah 3.1

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

[1 mark]

[1 markah]

(b) (i) Using the device in Diagram 3.1, a dry cell and a bulb, draw an

electric circuit to show that the bulb will lights up.

Menggunakan peranti dalam Rajah 3.1, satu sel kering dan sebiji

mentol, lukiskan satu litar elektrik untuk menunjukkan mentol itu

akan menyala.

[2 mark]

[ 2 markah]

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(ii) Name the arrangement of the device in the circuit as in (b) (i)

Namakan susunan peranti itu dalam litar yang ditunjukkan dalam

(b) (i).

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

[1 mark]

[1 markah]

(c) (i) What will happen to the bulb when the dry cell replaced by an

a.c source?

Apakah yang akan berlaku kepada mentol bila sel kering

digantikan dengan sumber a.u?

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

[1 mark]

[1 markah]

(ii) Give one reason for your answer in (c) (i)

Berikan satu sebab bagi jawapan anda di (c) (i).

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

[1 mark]

[1 markah]

4. Diagram 4 shows a stroboscopic photo of a boy of mass 50 kg cycling from

t = 0 s to 20 s. The velocity of the boy can be determined from Diagram 4.

Rajah 4 menunjukkan satu gambarfoto stroboskop bagi seorang budak lelaki

berjisim 50 kg berbasikal dari t = 0 s sehingga t = 20 s. Halaju budak itu dapat

ditentukan dari Rajah 4.

.

Diagram 4

Rajah 4

A

t = 0 s

B

t = 10 s

C

t = 20 s

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(a) What is the meaning of velocity?

Apakah maksud halaju?

………….………………………………………………………………………………

[1 mark]

[1 markah]

(b) What is type of motion of the boy in Diagram 4 from :

Apakah jenis pergerakan budak itu pada Rajah 4 dari:

(i) A to B

A ke B

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

(ii) B to C

B ke C

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

[2 mark]

[2 markah]

(c) Distance from A to B is 100 meter and the bicycle took 10 seconds to

reach B. The mass of the boy and bicycle is 55 kg.

Jarak diantara A ke B adalah 100 meter dan basikal itu mengambil

10 saat untuk sampai ke B. Jisim budak dan basikal itu ialah 55 kg.

(i) Calculate the velocity of the boy cycling from A to B.

Hitungkan halaju budak yang berbasikal itu dari A ke B.

[ 2 mark]

[ 2 markah]

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(ii) Draw the velocity - time graph of the boy cycling from t = 0 s to 20 s.

Lukiskan graf bagi halaju - masa budak yang berbasikal dari t = 0 s

sehingga t = 20 s.

[2 mark]

[ 2 markah]

5. Diagram 5.1 and Diagram 5.2 show two similar cargo ships sailing on the ocean.

Cargo ship A is without load and cargo ship B with load. The total weight of both

cargo ships is different.

Rajah 5.1 dan Rajah 5.2 menunjukkan dua buah kapal kargo yang serupa berlayar

di lautan. Kapal kargo A adalah tanpa beban dan kapal kargo B berisi beban.

Jumlah berat kedua-dua kapal kargo adalah berbeza.

Cargo Ship B

Kapal Kargo B

Diagram 5.1

Rajah 5.1

Cargo Ship A

Kapal kargo A

Diagram 5.2

Rajah 5.2

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(a) What is the meaning of weight?

Apakah maksud berat?

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

[1 mark]

[1 markah]

(b) Observe Diagram 5.1 and Diagram 5.2

Perhatikan Rajah 5.1 dan Rajah 5.2,

(i) Compare the total weight between Cargo ship A and Cargo ship B

Bandingkan jumlah berat antara kapal kargo A dan kapal kargo B.

………………………………………………………………………..........

[1 mark]

[1 markah]

(ii) Compare the volume of water displaced.

Bandingkan isipadu air yang tersesar.

………………………………………………………………………….......

[1 mark]

[1 markah]

(c) (i) Name other physical quantity beside weight that is acting on the

cargo ship.

Namakan kuantiti lain selain dari berat yang bertindak ke atas

kapal cargo itu.

……………………………………………………………………………...

[1 mark]

[1 markah]

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(ii) Relate the volume of water displaced to the physical quantity stated

in 5(c)(i).

Hubungkaitkan isipadu air yang tersesar dengan kuantiti fizik yang

dinyatakan dalam 5(c)(i).

……………………………………………………………………………...

[1 mark]

[1 markah]

(d) Nama the physics principle involved.

Namakan prinsip fizik yang terlibat.

……………………………………………………………………………………...

[1 mark]

[1 markah]

(e) What happen to the cargo ship B, if the cargo ship B is at riverbay? Give

one reason your answer.

Apakah yang berlaku kepada kapal kargo B jika kapal kargo B berada di

muara sungai? Beri satu sebab untuk jawapan anda.

……………………………………………………………………………………...

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

[2 mark]

[2 markah]

6. Diagram 6.1 and Diagram 6.2 shows two identical resistor connected in series

and in parallel. The ammeter reading shows the magnitude of current flowing in

both circuit.

Rajah 6.1 dan Rajah 6.2 menunjukkan dua perintang serupa disambungkan

secara siri dan selari. Bacaan ammeter menunjukkan magnitud arus yang

mengalir dalam kedua-dua litar itu.

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Diagram 6.1 Diagram 6.2

Rajah 6.1 Rajah 6.2

(a) What is the meaning of current ?

Apakah yang dimaksudkan dengan arus?

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

[1 mark]

[1 markah]

(b) Compare the magnitude of current in both circuit Diagram 6.1 and

Diagram 6.2

Bandingkan magnitud arus dalam kedua-dua litar dalam Rajah 6.1 dan

Rajah 6.2.

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

[1 mark]

[1 markah]

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(c) Calculate the effective resistance ;

Hitungkan rintangan berkesan ;

(i) in Diagram 6.1

dalam Rajah 6.1

[1 mark]

[1 markah]

(ii) in Diagram 6.2

dalam Rajah 6.2

[1 mark]

[1 markah]

(d) Based to the answer in (b) and (c) ;

Berdasarkan jawapan anda di (b) dan di (c);

(i) relate the size of current to the effective resistance.

hubungkaitkan jumlah arus dengan rintangan berkesan

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

[1 mark]

[1 markah]

(ii) deduce a physic concept involves.

deduksikan satu konsep fizik yang terlibat.

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

[1 mark]

[1 markah]

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(e) Another identical resistor is added to the circuit in Diagram 6.2. The circuit

is as shown in Diagram 6.3.

Satu perintang lain yang serupa di sambungkan pada litar dalam Rajah

6.2. Susunan litar adalah seperti yang ditunjukkan dalam Rajah 6.3.

Diagram 6.3

Rajah 6.3

If the electromotive force of battery is 3.0 V and the internal resistance of

battery is 0.7 Ω,

(i) calculate the effective resistance in the circuit

(ii) determine the ammeter reading

Jika daya gerak elektrik bagi bateri ialah 3.0 V dan rintangan dalam bateri

ialah 0.7Ω.

(i) hitungkan rintangan berkesan dalam litar

(ii) tentukan bacaan ammeter

[2 mark]

[ 2 markah]

E= 3.0 V

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7. Diagram 7.1 shows the arrangement of lenses of an astronomical telescope.

Rajah7.1 menunjukkan susunan kanta bagi sebuah teleskop astonomi.

Diagram 7.1

Rajah 7.1

The objective lens with focal length of 60 cm and an eyepiece of 20 cm is

situated at normal adjustment. Light from very far object passing through the

objective length produces a real image.

Kanta objektif berjarak fokus 60 cm dan kanta mata berjarak fokus 20 cm berada

pada pelarasan normal. Cahaya dari objek yang jauh melalui kanta objektif

menghasilkan imej nyata.

(a) What is the meaning of real image ?

Apakah yang dimaksudkan imej nyata?

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

[1 mark]

[1 markah]

Objektif lens Kanta objektif

First image Image pertama

Light from far object Cahaya dari objeh jauh

Eyepiece

Kanta mata

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(b) What is the distance between two lenses at normal adjustment ?

Berapakah jarak antara dua kanta itu pada pelarasan normal ?

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

[1 mark]

[1 markah]

(c) (i) On Diagram 7.1, complete the ray diagram to show the final image

fomed by the eyepiece.

Pada Rajah 7.1, lengkapkan rajah sinar untuk menunjukkan imej

akhir yang terbentuk oleh kanta mata.

[2 marks]

[ 2 markah]

(ii) State one characteristic of final image formed by eyepiece .

Nyatakan satu sifat imej akhir yang terbentuk oleh kanta mata.

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

[1 mark]

[1 markah]

(d) Calculate the magnification of telescope.

Hitungkan pembesaran oleh teleskop itu.

[1 mark]

[1 markah]

(e) State the modification that can be done to produce a larger and brighter

final image and give a reason for your suggestion .

Nyatakan pengubahsuaian yang boleh dilakukan untuk menghasilkan imej

akhir yang lebih besar dan terang dan berikan alasan bagi cadangan

anda.

(i) For larger final image

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Untuk imej akhir yang lebih besar

Modification :

pengubahsuaian

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

[1 mark]

[1 markah]

reason :

alasan

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

[1 mark]

[1 markah]

(ii) For more brighter final image.

Untuk imej akhir yang lebih cerah

Modification ;

pengubahsuaian

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

[[1 mark]

[1 markah]

Reason :

Alasan

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

[1 mark]

[1 markah]

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8. Diagram 8.1 shows a when tuning fork is hit it will produce sound waves.

Rajah 8.1 menunjukkan apabila sebuah tala bunyi diketuk ia akan

menghasilkan gelombang bunyi.

Diagram 8.1

Rajah 8.1

(a) State the type of wave produced by the tuning fork.

Nyatakan jenis gelombang yang dihasilkan oleh tala bunyi.

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

[1 mark]

[1 markah]

(b) Diagram 8.2 shows when another tuning fork is brought near to the

vibrating tuning fork, the second tuning fork it will also vibrate.

Rajah 8.2 menunjukkan apabila satu lagi tala bunyi di bawa mendekati tala

bunyi yang bergetar itu tala bunyi yang kedua ini akan juga bergetar.

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.

Diagram 8.2

Rajah 8.2

(i) Name the incident happen.

. Namakan kejadian yang berlaku.

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

[1 mark]

[1 markah]

(ii) State on condition for the above incident to happen.

Nyatakan satu syarat untuk berlakunya kejadian diatas.

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

[1 mark]

[1 markah]

(c) Diagram 8.3 shows a sound wave form produced by a tuning fork

displayed on the screen of cathode ray oscilloscope.

Rajah 8.3 menunjukkan suatu bentuk gelombang bunyi yang dihasilkan

oleh suatu tala bunyi ditunjukkan pada skrin tiub sinar katod.

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Diagram 8.3

Rajah 8.3

On Diagram 8.4, draw the sound wave form produced when the loudness

is increased.

Pada Rajah 8.4, lukiskan bentuk gelombang bunyi yang dihasilkan bila

kekuatan ditambah.

Diagram 1.4

Rajah 1.4

[1 mark]

[1 markah]

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(c) Diagram 8.5 shows an electromagnetic wave spectrum.

Rajah 8.5 menunjukkan satu spektrum gelombang elektromagnet.

Radio

wave

Gelombang

radio

Microwave

Gelombang

mikro

P

Visible

light

Cahaya

nampak

Q

X-ray

Sinar-x

Gamma

ray

Sinar

Gama

Diagram 8.5

Rajah 8.5

(i) Name the wave for;

Namakan gelombang bagi;

P : ……………………………………………………………………

Q : ……………………………………………………………………

[2 marks]

[ 2markah]

( ii) Choose one wave that harmful to human body.

satu gelombang yang merbahaya kepada badan manusia.

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

[1 mark]

[1 markah]

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(iii) Give one reason for the answer in 1 (c) (ii).

Beri satu sebab bagi jawapan di 1 (c )(ii).

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

[1 mark]

[1 markah]

(iv) Choose one wave that used in telecommunications.

Pilih satu gelombang yang sesuai digunakan dalam

telekomunikasi.

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

[1 mark]

[1 markah]

(v) Give one reason for the answer in 1 (c) (iv).

satu sebab bagi jawapan di 1 (c) (iv).

………………………………………………………………………..........

[1 mark]

[1 markah]

( vi) Choose the suitable wave that can be used in cancer treatment.

Pilih gelombang yang sesuai digunakan untuk rawatan penyakit

kanser.

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

[1 mark]

[1 markah]

(vii) Give one reason for the answer in 1 (c) (vi).

Beri satu sebab bagi jawapan di 1(c) (vi).

……………………………………………………………………………...

[1 mark]

[1 markah]

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SECTION B

BAHAGIAN B

[20 Marks]

[20 Markah]

Answer any one question

Jawab mana-mana satu soalan

9. Diagram 9.1 and Diagram 9.2 show an identical fan blows air between two pieces

of paper. The fan is adjusted at different speed.

Rajah 9.1 dan Rajah 9.2 menunjukkan dua kipas serupa meniup udara di antara

dua keping kertas. Kedua-dua kipas itu dilaraskan pada kelajuan berbeza.

Diagram 9.1

Rajah 9.1

Diagram 9.2

Rajah 9.2

Speed controller Pelaras laju

Speed controller Pelaras laju

X

X

Paper kertas

Paper kertas

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(a) What is the meaning of pressure?

Apakah yang dimaksudkan dengan tekanan ?

[1 mark]

[1 markah]

(b) Observed the Diagram 9.1 and Diagram 9.2.

Perhatikan Rajah 9.1 dan 9.2.

(i) compare the speed of air flow between two sheet of paper

bandingkan halaju udara bergerak antara dua helai kertas.

(ii) compare the distance between two sheets of paper, x

bandingkan jarak antara dua keeping kertas, x.

(iii) Relate the speed of air to the distance between two paper, x.

Hubungkaitkan halaju udara dengan jarak antara dua helai kertas,x

(iv) Name the principle involves

Namakan prinsip yang telibat.

(v) What is the statement about the principle in your answer at a(iv)?

Apakah pernyataan mengenai prinsip dalam jawapan anda di a

(iv)?

[ 5 marks]

[ 5 markah]

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(b) Diagram 9.3 shows a cross sectional shape of an aeroplane .

Rajah 9.3 menunjukkan keratan rentas bentuk sayap sebuah kapal

terbang.

Diagram 9.3

Rajah 9.3

(i) Name the shape of the wing

Namakan bentuk sayap itu.

[1 mark]

[1 markah]

(ii) Explain how the shape of wing enable to lift up the aeroplane when

its moving.

Terangkan bagaimana bentuk sayap membolehkan kapalterbang

terangkat apabila ia bergerak.

[ 3 marks]

[ 3 markah]

(c) Diagram 9.4 shows a gardener use a sprayer to kill the insects that

damages his vegetable. When he pushes the piston of sprayer , the

pesticide sprayed on the insects.

Rajah 9.4 menunjukkan seorang pekebun menggunakan penyembur

untuk membunuh serangga perosak yang merosakkan tanaman sayuran.

Apabila dia menolak omboh penyembur ,maka racun serangga itu akan

disemburkan keatas serangga.

Cross sectional Keratan rentas

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Diagram 9.4

Rajah 9.4

You are asked to make a modification on the sprayer therefore it enable to spray

wide range and save the pesticide. In your suggestion emphasis about this

aspects ;

Anda dikehendaki membuat pengubahsuaian keatas penyembur supaya julat

semburan lebih luas dan tidak membazir penggunaan racun serangga.

Cadangan anda hendaklan memberikan penekanan kepada aspek berikut;

(i) Size of pum

Saiz pam

(ii) Size of pump nozzle

Saiz muncung pam

(iii) Ssize of bottle nozzle

Saiz muncung botol

(iv) size of bottle

Saiz botol

(v) material made of pump

bahan binaan pam

Piston omboh

Poison racun

Pump

pam

Bottle nozzle

Muncung botol

Pump nozzle Muncung pam

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10. Diagram 10.1 and Diagram 10.2 show the decay graphs of two different

radioactive sources.

Rajah 10.1 dan Rajah 10.2 menunjukkan graf reputan bagi dua sumber

radioaktif yang berlainan.

Diagram 10.1

Rajah 10.1

80

60

40

20

Act

ivit

y /

cou

nts

per

sec

on

d

Ker

ad

ioa

ktif

an

/ b

ilan

ga

n p

er s

aa

t sa

at

10 20 30 0

Source A

Sumber A

80

60

40

20

1 2 3 0

Source B

Sumber B

Act

ivit

y /

cou

nts

per

sec

on

d

Ker

ad

ioa

ktif

an

/ b

ilan

ga

n p

er s

aa

t

saa

t

Time / year

Masa pereputan / Tahun

Time / year

Masa pereputan / Tahun

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Diagram 10.2

Rajah 10.2

(a). What is the meaning of decay ?

Apakah yang dimaksudkan dengan reputan?

[1 mark]

[1 markah]

(b). Using Diagram 10.1 and Diagram 10.2, compare the initial

activity of the sources, the time interval for the activity to be halved and the

rate of decay of the radioactives.

Menggunakan Rajah 10.1 dan Rajah 10.2, bandingkan aktiviti awal

sumber-sumber itu, sela masa untuk aktiviti menjadi separuh dan kadar

penyusutan radioaktif-radioaktif itu.

State the relationship between:

Nyatakan hubungan antara:

the rate of decay of the radioactives and the time of interval for the

radioactive to be halved.

Kadar penyusutan radioaktif dan sela masa untuk radioaktif menjadi

separuh.

half life and the rate of decay of the radioactives.

Separuh hayat dan kadar penyusutan radioaktif

[ 5 marks]

[ 5 markah]

(c) Explain how radioisotope Strontium-90 is used to measure the thickness

piece of paper in a factory.

Terangkan bagaimana radioisotope Strontium-90 digunakan untuk

mengukur ketebalan sehelai kertas di dalm sebuah kilang.

[4 marks]

[4 markah]

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(d) Diagram 10.3 shows a simple nuclear reactor.

Rajah 10.3 menunjukkan sebuah reaktor nuklear ringkas.

Diagram 10

Rajah 10

You are required to give some suggestion to design the reactor nuclear

which is more efficient based on the following aspect:

Anda dikehendaki memberi beberapa cadangan untuk mereka bentuk

sebuah reactor nuclear yang lebih cekap berdasarkan beberapa aspek:

(i) the fuel rod used

rod bahanapi

(ii) Control rod

Rod pengawal

(iii) Moderator

moderator

(iv) Thickness of wall

Ketebalan dinding

(v) Coolant

penyejuk

[10 marks]

[10 markah]

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[20 marks] [20 markah]

Answer any one question from this section. Jawab mana-mana satu soalan daripada bahagian ini.

11. Diagram 11 shows a doctor used a thermometer to measure the body

temperature of a girl.

Rajah 11 menunjukkan seorang doktor menggunakan sebuh termometer untuk

mengukur suhu badan seorang budak perempuan.

Diagram 11

Rajah 11 .

(a) What is the meaning of temperature?

Apakah maksud suhu?

[2 marks]

[2 markah]

(b) Explain in terms of thermal equilibrium, how the termometer reads the

body temperature of the girl.

Terangkan dalam konteks keseimbangan terma, bagaimana termometer

tersebut memberi bacaan suhu badan budak perempuan itu.

[4 marks]

[4 markah]

SECTION C BAHAGIAN C

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(c) Table 11 shows the characteristics of five termometers, A, B, C and D.

Jadual 11 menunjukkan ciri-ciri empat termometer, A, B, C dan D.

Thermometer

Termometer

Liquid used

Cecair yang

digunakan

Glass

walled buld

Dinding

bebuli kaca

Diameter of

capillary

tube

Diameter

tiub kapilari

Glass-bore stem and

cross section

Lubang batang kaca

dan keratan rentas

A Mercury

Merkuri

Thin

Nipis

Big

Besar

Thick and Curved

Tebal dan Melengkung

B Alcohol

Alkohol

Thick

Tebal

Small

Kecil

Thin and plane

Nipis dan Satah

C Mercury

Merkuri

Thin

Nipis

Small

Kecil

Thick and Curved

Tebal dan Melengkung

D Alcohol

Alkohol

Thick

Tebal

Big

Besar

Thin and plane

Nipis dan Satah

A research project is carried out on the weather of a region with the surrounding

temperature is between -35 C to 45 C. Thermometer is an equipment to be

taken for the research project.

Satu projek penyelidikan hendak dijalankan di suatu kawasan dengan

suhu persekitaran antara -35 C to 45 C. Termometer adalah antara peralatan

yang perlu dibawa dalam projek penyelidikan ini.

As a researcher, you are required to determine the most suitable thermometer to

be taken with as one item of the equipment. Study the characteristics of all the

four thermometer based on the following aspects :

Sebagai seorang penyelidik, anda diminta untuk menentukan termometer yang

paling sesuai sebagai satu item peralatan yang perlu untuk dibawa bersama. Kaji

ciri – ciri termometer itu berdasarkan aspek berikut :-

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34

- The liquid used

Jenis cecair yang digunakan

- Glass wall bulb

Dinding bebuli kaca

- Diameter of capillary tube

Diameter tiub kapilari

- Glass bore stem and cross section

Lubang batang kaca dan keratan rentas

Explain the suitability of the aspects.Justify your choice.

Terangkan kesesuaian aspek – aspek itu dan beri sebab bagi pilihan anda

(d) A thermometer which is not calibrated has a mercury column of length 5.0 cm.

When the temperature is 0 C and 25.0 cm when the temperature is 100 C.

The mercury column is 12.0 cm when put in liquid X.

Sebuah termometer yang belum ditentukurkan mempunyai panjang turus 5.0

cm apabila suhu adalah 0 C dan 25.0 cm apabila suhu adalah 100 C. Turus

merkuri adalah 12.0 cm apabila diletakkan ke dalam cecair X.

(i) Determine the temperature of liquid X.

Tentukan suhu cecair X itu.

[3 marks]

[ 3 markah]

(ii) Determine the temperature of liquid X in Kelvin

Tentukan suhu cecair X itu dalam Kelvin.

[1 mark]

[1 markah]

(iii) State a thermometric property used when making of a thermometer.

Nyatakan satu sifat termometri yang digunakan dalam membuat sebuah

termometer.

[1 mark]

[1 markah]

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12. Diagram 12.1 shows a transformer.

Rajah 12.1 menunjukkan sebuah transformer.

Diagram 12.1

Rajah 12.1

(a) (i) What is meant by a transformer?

Apakah yang dimaksudkan dengan transformer.

[1 mark]

[1 markah]

(ii) Explain the working principle of the transformer.

Terangkan prinsip kerja sebuah transformer.

[4 mark]

[4 markah]

(b) (i) The number of turns on the primary coil in diagram 12.1 is 1500.

Calculate the number of turns on the secondary coil.

Bilangan lilitan pada gegelung primer pada Rajah 12.1 ialah 1500.

Hitung bilangan lilitan pada gegelung sekunder.

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(ii) The transformer in Diagram 12.1 is used to switch on an electrical

appliance.

The current in the primary coil is 0.1 A and the efficiency is 85%.

Transformer dalam Rajah 12.1 digunakan untuk menghidupkan

sebuah alat elektrik.

Arus yang mengalir dalam gegelung primer ialah 0.1 A dan

kecekapannya ialah 85%.

Calculate the output power of the transformer.

Hitung kuasa output transformer itu.

[5 mark2]

[5 markah]

(c) Diagram 12.2 shows a block diagram of the National grid Network

system.

Rajah 12.2 menunjukkan gambarajah blok sistem Rangkaian Grid

Nasional.

Power stesenStesen Janakuasa

Electric CableKabel elektrik

ConsumerPengguna

Transformer PTransformer P

Transformer QTransformer Q

Diagram 12.2

Rajah 12.2

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Using your knowledge about electrical and Diagram 12.3 above, you are

asked to determine the suitable characteristics used in the system J,K,L

and M a for a National Grid Network system in Diagram 12.3 below.

Menggunakan pengetahuan anda mengenai elektrik dan Rajah 12.3 di

atas, anda dikehendaki mengenalpasti ciri-ciri yang digunakan dalam

sistem J,K,L dan M untuk Rangkaian Grid Nasional dalam Rajah 12.3 di

bawah.

Type of

Transformer

Jenis Trans

former

Diameter of

conductor

cable

Diameter

konduktor

kabel

Transmission

Voltage

Voltan

penghantaran

Cable position

Kedudukan

kabel

J P is step up

Q step down

P injak naik

Q injak turun

Bigger

Besar

Low

Rendah

On the pylon

Di atas pilon

K P is step up

Q step down

P injak naik

Q injak turun

Small

Kecil

High

Tinggi

On the

concrete

Di atas konkrit

L P is step up

Q step down

P injak naik

Q injak turun

Bigger

Besar

High

Tinggi

On the pylon

Di atas pilon

M Q is step up

P step down

Q injak naik

P injak turun

Small

Kecil

Low

Rendah

On the

concrete

Di atas konkrit

Diagram 12.3

Rajah 12.3

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Study the specification of the five system and explain the suitability of each

system based on the following aspects:

Kaji spesifikasi kelima-lima sistem itu dan terangkan kesesuaian setiap

aspek berdasarkan aspek berikut:

(i) Type of transformer P and Q

Jenis transformer P dan Q

(ii) Diameter of cable used

Diameter kabel yang digunakan

(iii) Transmission Voltage

Voltan penghantaran

(iv) Position of cable

Kedudukan kabel

Explain the suitability of each aspects and determine the most suitable

system.

Give reason for your answer.

Terangkan kesesuaian setiap aspek dan tentukan sistem yang paling

sesuai.

Beri sebab bagi jawapan anda.

[10 marks]

[10 markah]

END OF QUESTION

KERTAS SOALAN TAMAT

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MODUL GCAKNA 2014 KERTAS 2 SET 2

SKEMA

Question Mark Scheme Marks

1 (a)

(b)

(c) (i)

(ii)

Ratchet

To prevent too much pressure being exerted on the object.

Positive Zero Error

2.80 – 0.02 = 2.78 mm

1

1

1

1

Total 4

Question Mark Scheme Marks

2 (a) (b) (i) (ii) (iii) (c)

Unstable isotope β- particle Geiger- Muller tube Area where Geiger-Muller show the maximum reading Have a short half life// change to a nucleus stable in short time

1

1

1

1

1

Total 5

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Question

Mark Scheme Marks

4 (a) (b) (i) (ii) (iii) (c)

Displacement per time // rate of change of displacement Constant velocity // zero acceleration Increasing velocity // constant acceleration V = 100 10 = 10 ms-1

1

1

1

2

2

Total 7

3 (a) (i) Diode

1

(b) (i) (ii)

Forward bias

2

1

(c) (i) (ii)

Lights up

The arrangements is still in forward bias when terminal

positive connected to P

1

1

Total 6

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Question Mark Scheme Marks

5 (a) Force of gravity acting on the object //

Mass x acceleration due to gravity // mg (explain symbol) 1

(b) (i) The weight of Cargo ship B bigger than Cargo ship B / vice

versa 1

(ii) The volume of water displaced in Diagram 5.2 higher than

Diagram 5.2 / vice versa 1

(c) (i) Buoyant force 1

(ii) The increases the volume of water displaced, the increases

the Buoyant force 1

(d) Archimedes ‘ Principle 1

(e) - Sinks

- Sea denser than river

2

Total 8

Question Mark Scheme Marks

6 (a) Rate of charge flow through a conductor 1

(b) Size of current flow in circuit in Diagram 6.1 is smaller than in

Diagram 6.2. 1

(c) (i) R = 8 Ω 1

(ii) R= 2 Ω 1

(d) (i) When the effective resistance increase the current is

decreases 1

(ii) Size of current inversely proportional to the resistance when

the voltage is constant 1

(e) (i) R = 4/3 = 1.33 1

(ii) I = 1.48 A 1

Total 8

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Question Mark Scheme Marks

7 (a) (b) (c) (i) (ii) (d) (e) (i) (ii)

Image that can be formed on screen Normal adjustment is = 80 cm // 60 +20 1.Parallel line with arrow 2.Parallel dot line Virtual image// magnified// inverted M = 3 Increase focal length of objective lens and reduce the focal length of eyepiece. Magnification is the ratio of fo / fe

Use objective lens with large diameter More light enters

1

1

2

1

1

1

1

1

1

Total 10

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Question Mark Scheme

Marks

8. (a) (i) Longitudinal wave / mechanical wave 1

(b) (i) Resonance 1

(ii) Same frequency // energy transferred 1

(c)

(Amplitude of the wave drawn is bigger)

1

(c) (i) P – Infrared Q - Ultraviolet

1 1

(ii) Gamma ray / ultraviolet / x-Ray 1

(iii) Can kills the life cell / skin burn or skin cancer /

1

(iv) Radio wave / microwave 1

(v) High frequency / high energy / high penetrating power / less diffracted

1

(vi) Gamma Ray 1

(vii) high energy / high penetrating power 1

Total 12

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Question Mark scheme Marks

9 (a) (b) (i) (ii) (iii) (iv) (v) (c) (i) (ii) (d)

Pressure is the force acting normally per surface area of an object.// Force over surface area where direction of force is perpendicular to the surface area of an object. The speed of air flow between two sheets of paper in Diagram 9.1 is lower than in Diagram 9.2 The distance between two sheets of paper, x in Diagram 9.1 is longer than in Diagram 9.2 When the speed of air between two sheets of paper increase, the distance between two sheets of paper,x is decreases. Bernoulli’s Principle When the speed of air flow high , the pressure of air is low Aerofoil When the aeroplane moves the speed of air flows obove the wing is higher than below the wing The air pressure above the wing is low while the pressure Below the wing is higher. Difference in pressure between above and below the wing causes the aeroplane moving up as the lifting force produce.

suggestion Discription

Large length/ size of pump Small hole of at the end of pump nozzle Small hole of at the end of bottle nozzle Big size of bottle Pump is made by strong material and light

Much more volume of air blows out

So that air blows out when its pumped is high velocity, and the air pressure is low

Rate of quantity of liquid out is small

It can filled with large quantity poison .

It can withstand the high pressure as the air in pump is Compress.

1

1

1

1

1

1

1

1

1

1

2

2

2

2

Total 20

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Question Mark Scheme Marks

10. (a) Decay is the process where heavy nucleus emits radioactive rays

and energy to be a stable nucleus

1

(b) 1. Initial activity is the same

2. time interval in Diagram 10.1 is longer

3. rate of decay in Diagram 10.1 is lower 4. The higher the rate of decay the shorter the time interval 5. The higher the rate of decay the shorter the half life

5

(c) Sheets of papers is palced on a moving conveyer belt

Radioactive source is placed under the conveyer belt

A detector is palced on top of the paper

Similar reading on the scale of the detector show the sheets has the same thickness // if nthe reading is more / less the sheet of paper is thinner/thicker

4

(d) Aspect Reasoning

Fuel rod used is Uranium to produce fission process for production of nuclear energy

Control rod is Boron or cadmium

to absorb neutron to control the reaction

Moderator is graphite to slow down the fast moving electron

Thick concrete wall Prevent escape of harmful radiation // to prevent leakage

Coolant used is heavy water To take away heat from the reactor out

2

2

2

2

2

Total

20

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Question Mark Scheme Mark

11 (a)

(b)

(c)

(d) (i)

(ii)

(iii)

Temperature is the degree of hotness

- The thermometer is put under the touge

- The heat is transferred from the body to the

thermometer

- Mercury expand until it reaches a state of

thermal equilibrium

- The temperature of the thermometer is the

same as the body

Aspect Reasoning

Liquid used is Mercury

Expands uniformly // sensitive to changes in temperature

Thin glass walled bulb

More sensitive to heat

Small diameter of capillary

tube

get a wider range // More sensitive to heat

Glass-bore stem and cross

section - Thick and Curved

not easily to break // easy to

read

C most suitable

Mercury, Thin, Small and

Thick and Curved

( l -l0) x 100

( l100 - l0)

( 12 - 5 ) x 100

( 25 - 5 )

= 35 C

( 273 + 35 ) K = 308K

Volume expand with temperature

1

1

1

1

1

2

2

2

2

2

1

1

1

1

1

Total 20

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Question Mark Scheme

Marks

12. (a) (i) A device to increase or decrease voltage 1

(ii) 1. When an a.c. voltage is supplied to the primary coil, an

alternating current flows through coil.

2. The soft -iron core is magnetized.

3. The magnet produced varies in magnitude and direction.

4. This causes a changing magnetic flux to pass through the

secondary coil.As a result ,an induced e.m.f across the

secondary coil is produced.

4

(b) (i) No of turns = 12 x 1500 240 = 75 turns

1

1

(ii) Efficiecy = Po x100 Pi 85 = Po x 100 (0.1) (240) Po = 0.1 x 2.4 x 85 = 20.4 W

1

1

1

(c) Aspects Reasoning

P step up Q step down

P increase voltage Q decrease voltage

Big diameter Reduce resistance

High voltage Small current// reduce heat loss

Cable on pylon Stiff / strong

L is chosen P step up and Q step down, big diameter, high voltage, cable on pylon

2

2

2

2

2

Total 20

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