modul fizik cakna kelantan spm 2014 k2 set 1 dan skema

SULIT/4531/2 MODUL G-CAKNA 2014

PANEL G-CAKNA 1 / LIHAT SEBELAH…

JABATAN PENDIDIKAN KELANTAN

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

FIZIK – SET 1 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 31 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



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



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 man standing in front of a concave mirror.

Rajah 1.1 menunjukkan seorang lelaki berdiri di hadapan sebuah cermin

cekung.

Diagram 1.1

Rajah 1.1

(a) Based on Diagram 1.1, state one characteristic of the image.

Berdasarkan Rajah 1.1, nyatakan satu ciri bagi imej.

……………………………………………………………………………

[1 mark]

[1 markah]

(b) (i) Draw a concave mirror in the space below.

Lukis satu cermin cekung dalam ruang di bawah.

[1 mark]

[1 markah]



Diagram 1.2

Rajah 1.2

(ii) Using the answer in 1(b)(i), complete the ray diagram on

Diagram 1.2 to show how the image of the man in Diagram 1.1 is

formed.

O is the pole of the mirror and F is the focal point of the mirror.

Menggunakan jawapan dalam 1(b)(i), lengkapkan rajah sinar

dalam Rajah 1.2 untuk menunjukkan bagaimana imej lelaki

dalam Rajah 1.1 terbentuk.

O adalah kutub bagi cermin itu dan F adalah titik fokus bagi

cermin itu.

[2 marks]

[2 markah]

2. Diagram 2.1 shows an electric circuit.

Diagram 2.2. shows a potential difference, V against current, I graph when the

switch is pressed.

Rajah 2.1 menunjukkan satu litar elektrik.

Rajah 2.2 menunjukkan satu graf beza keupayaan, V melawan arus, I apabila

suis ditekan.

Diagram 2.1 Diagram 2.2



Rajah 2.1 Rajah 2.2

(a) (i) Based on Diagram 2.1, state the physical quantity measured by

the voltmeter.

Berdasarkan Rajah 2.1, nyatakan kuantiti fizik yang diukur oleh

voltmeter.

…………………………………………………………………..........

[1 mark]

[1 markah]

(ii) Based on Diagram 2.2, state the value of the physical quantity

stated in 2a(i).

Berdasarkan Rajah 2.2, nyatakan nilai bagi kuantiti fizik yang

dinyatakan dalam 2a(i).

…………………………………………………………………………...

[1 mark]

[1 markah]

(b) Using Diagram 2.1 and Diagram 2.2,

Menggunakan Rajah 2.1 dan Rajah 2.2,

(i) Calculate the internal resistance, r of the dry cell

Hitung rintangan dalam, r bagi sel kering.

[2 marks]

[2 markah]

(ii) What happens to the reading of the voltmeter if the resistor, R is

replaced with another resistor of higher magnitude?

Apakah yang berlaku kepada bacaan voltmeter jika perintang, R

diganti dengan perintang lain yang mempunyai magnitud yang

lebih tinggi?

…………………………………………………………………………..

[1 mark]

[1 markah]



3. Diagram 3.1 shows a 800 W immersion heater being used to heat water of

mass 300 g in a beaker which is on an electronic balance. The initial

temperature of water is 28oC.

Rajah 3.1 menunjukkan suatu pemanas rendam 800 W yang digunakan untuk

memanaskan air berjisim 300 g dalam bikar yang berada di atas neraca

elektronik. Suhu awal air adalah 28oC.

Diagram 3.1

Rajah 3.1

(a) State the transformation of energy involved while the water is heated

with an immersion heater.

Nyatakan perubahan tenaga yang terlibat ketika air dipanaskan dengan

pemanas rendam.

…………………………………………………………………………………

[1 mark]

[1 markah]

(b) Calculate the heat energy absorbed by the water to reach its boiling

point.

Hitung tenaga haba yang diserap oleh air itu untuk mencapai takat

didih.

( Specific heat capacity of water = 4200 J kg-1 oC-1)

(Muatan haba tentu bagi air = 4200 J kg-1 oC-1)



[2 marks]

[2 markah]

(c) When the water is boiling, the reading of the electronic balance

decreases by 50 g in 150 s.

Ketika air sedang mendidih, bacaan neraca elektronik berkurang

sebanyak 50 g dalam masa 150 s.

(i) Calculate the specific latent heat of vaporisation of the water.

Hitung haba pendam tentu pengewapan bagi air itu.

[2 marks]

[2 markah]

(ii) Give a reason why the temperature of the water remain

unchanged during the boiling of water.

Berikan sebab mengapa suhu air tidak berubah semasa air itu

mendidih.

………………………………………………………………………….

[1 mark]

[1 markah]



4. Diagram 4 shows a brake system of a car.

Rajah 4 menunjukkan suatu sistem brek bagi sebuah kereta.

Diagram 4

Rajah 4

(a) Name the principle involved in this brake system.

Namakan prinsip yang terlibat dalam sistem brek ini.

………………………………………………………………………………………

[1 mark]

[1 markah]

(b) Give one reason why water is not suitable to be used as the brake fluid.

Berikan satu sebab mengapa air tidak sesuai untuk digunakan sebagai

cecair brek.

……………………………………………………………………………

[1 mark]

[1 markah]



(c) Based on Diagram 4,

Berdasarkan Rajah 4,

(i) Explain why piston B has bigger surface area compared to piston

A?

Terangkan mengapa omboh B mempunyai luas permukaan yang

lebih besar berbanding dengan omboh A?

…………………………………………………………………….......

…………………………………………………………………………

[2 marks]

[2 markah]

(ii) State one modification to the brake pedal that enables the brake

system to be used in heavy vehicles.

Nyatakan satu pengubahsuaian kepada pedal brek bagi

membolehkan sistem brek itu digunakan dalam kenderaan berat.

………………………………………………………………………......

[1 mark]

[1 markah]

(d) A force of 50 N is applied on the brake pedal which has cross sectional

area 2 cm2. Calculate the force produced on the brake pad if it’s cross

sectional area is 15 cm2.

Suatu daya 50 N dikenakan ke atas pedal brek yang mempunyai luas

keratan rentas 2 cm2. Hitung daya yang dihasilkan pada pad brek jika

luas keratan rentasnya adalah 15 cm2.

[2 marks]

[2 markah]



5. Diagram 5.1 shows a boy kicking a ball.

Diagram 5.2 shows the same boy kicking another ball which is identical but is

deflated.

Rajah 5.1 menunjukkan seorang budak lelaki menendang sebiji bola.

Rajah 5.2 menunjukkan budak yang sama menendang sebiji bola lain yang

serupa tetapi kempis.

Diagram 5.1

Rajah 5.1

Diagram 5.2

Rajah 5.2

The ball swerved due to impulsive force.

Bola itu melencong disebabkan oleh daya impuls.

(a) What is the meaning of impulsive force?

Apakah yang dimaksudkan dengan daya impuls?

……………………………………………………………………………..



[1 mark]

[1 markah]

(b) Using Diagram 5.1 and Diagram 5.2, compare:

Menggunakan Rajah 5.1 dan Rajah 5.2, bandingkan:

(i) The displacement of the ball, AB

Sesaran bola itu, AB

………………………………………………………………………….

[1 mark]

[1 markah]

(ii) The time of contact between the foot of the boy and the ball.

Masa tindak balas antara kaki budak lelaki itu dan bola.

…………………………………………………………………………

[1 mark]

[1 markah]

(iii) The change of momentum of the ball

Perubahan momentum bola itu

…………………………………………………………………………

[1 mark]

[1 markah]

(c) Relate the displacement of the ball with:

Hubungkaitkan sesaran bola itu dengan:

(i) The time of contact between the foot of the boy and the ball

Masa tindakbalas antara kaki budak lelaki itu dan bola

…………………………………………………………………………

[1 mark]

[1 markah]

(ii) The change of momentum of the ball


…………………………………………………………………………

[1 mark]

[1 markah]

(d) State the relationship between the impulsive force and:



Nyatakan hubungan antara daya impuls dan:

(i) The time of contact between the foot of the boy and the ball

Masa tindakbalas antara kaki budak lelaki itu dan bola

…………………………………………………………………………

[1 mark]

[1 markah]

(ii) The change of momentum of the ball


…………………………………………………………………………

[1 mark]

[1 markah]

6. Diagram 6.1 and Diagram 6.2 show the fringes’ patterns produced when two

identical monochromatic lights passing through two double slits of different

width.

Rajah 6.1 dan Rajah 6.2 menunjukkan corak pinggir yang dihasilkan apabila

dua cahaya monokromatik yang sama melalui dua dwicelah dengan lebar

yang berbeza.


Rajah 6.1 Rajah 6.2

(a) What is the meaning of monochromatic light?

Apakah yang dimaksudkan dengan cahaya monokromatik?



…………………………………………………………………………………

[1 mark]

[1 markah]

(b) Explain how fringes are formed on the screen?

Terangkan bagaimana pinggir-pinggir terbentuk di atas skrin?

…………………………………………………………………………………

…………………………………………………………………………………..

[2 marks]

[2 markah]

(c ) Using Diagram 6.1 and Diagram 6.2, compare:

Menggunakan Rajah 6.1 dan 6.2, bandingkan:

(i) The distance between the two slits, a.

Jarak di antara dua celah, a.

…………………………………………………………………………...

[1 mark]

[1 markah]

(ii) The wavelength, λ of the monochromatic light.

Panjang gelombang, λ bagi cahaya monokromatik itu.

………………………………………………………………………….

[1 mark]

[1 markah]

(iii) The distance between the double slits and the screen, D.

Jarak di antara dwicelah dan skrin, D.

………………………………………………………………………….

[1 mark]

[1 markah]

(iv) The distance between the fringes, x produced on the screen.

Jarak di antara pinggir-pinggir, x yang terhasil di atas skrin.

………………………………………………………………………….

[1 mark]

[1 markah]



(d) Using your answers in 6 (c) state the relationship between x and a .

Menggunakan jawapan anda di 6(c) nyatakan hubungan antara x dan a

.

………..………………………………………………………………………….

[1 mark]

[1 markah]

7. Diagram 7.1 and 7.2 show two electric circuits containing semiconductor

diodes.

Rajah 7.1 dan Rajah 7.2 menunjukkan dua litar elektrik mengandungi diod

semikonduktor.

Diagram 7.1

Rajah 7.1

Diagram 7.2

Rajah 7.2

(a) (i) What is the meaning of semiconductor?

Apakah yang dimaksudkan dengan semikonduktor?



…………………………………………………………………………

[1 mark]

[1 markah]

(ii) Based on Diagram 7.1 and Diagram 7.2, which bulb will light up

when the switch is pressed?

Berdasarkan Rajah 7.1 dan Rajah 7.2, mentol yang manakah

akan menyala apabila suis ditekan?

…………………………………………………………………………

[1 mark]

[1 markah]

(iii) Explain your answer in 7(a)(ii).

Terangkan jawapan anda dalam di 7(a)(ii).

…………………………………………………………………………

………………………………………………………………………….

[2 marks]

[2 markah]

(b) Diagram 7.3 shows an electric circuit which consists of the input and

output signal displayed on the screen of the cathode ray oscilloscope

(CRO).

Rajah 7.3 menunjukkan satu litar elektrik yang mengandungi isyarat

input dan output yang dipaparkan pada skrin osiloskop sinar katod (OSK).

Diagram 7.3

Rajah 7.3

(i) On Diagram 7.3, draw the symbol of a semiconductor diode in

box X.



Pada Rajah 7.3, lukis simbol bagi diod semikonduktor dalam

kotak X.

[1 mark]

[1 markah]

(ii) Name one electronic component that can be connected to the

output as to smoothen the output signal produced.

Namakan satu komponen elektronik yang boleh disambungkan

pada output untuk meratakan isyarat output yang dihasilkan.

…………………………………………………………………………

[1 mark]

[1 markah]

(c) The semiconductor diode in Diagram 7.3 cannot produce a steady

output signal.

Diod semikonduktor dalam Rajah 7.3 tidak boleh menghasilkan isyarat

output yang mantap.

Diagram 7.4

Rajah 7.4

On Diagram 7.4;

Pada Rajah 7.4;

(i) Draw the arrangement of the diode semiconductors in the circles

provided in box Y as to produce a more steady output signal.

Lukis susunan bagi diod semikonduktor di dalam bulatan yang

disediakan dalam kotak Y untuk menghasilkan isyarat output

yang lebih mantap.

[1 mark]

[1 markah]



(ii) Complete the circuit by drawing the electronic component that

you named in 7(a)(ii) in box Y.

Your drawing should show how the component is placed.

Lengkapkan litar dengan melukis komponen elektronik yang

anda namakan di dalam 7(a)(ii) dalam kotak Y.

Lukisan anda seharusnya menunjukkan bagaimana komponen

itu diletakkan.

[1 mark]

[1 markah]

(iii) Draw the waveform produced at the screen of oscilloscope.

Lukis bentuk gelombang yang dihasilkan pada skrin osiloskop.

[1 mark]

[1 markah]

(d) Name the process that occurs in Diagram 7.4.

Namakan proses yang berlaku dalam Rajah 7.4

…………………………………………………………………………………..

[1 mark]

[1 markah]

8. Diagram 8 shows a system used in a factory to ensure the volume of dragon

fruit juice is uniform.

Rajah 8 menunjukkan satu sistem yang digunakan di sebuah kilang dalam

memastikan isipadu jus buah naga adalah seragam

Diagram 8

Rajah 8



The radioactive source, radiation detector and counter are used to detect the

volume of dragon fruit juice. The radioactive source contains a radioisotope

which radiates β particle.

Sumber radioaktif, pengesan sinaran dan pembilang digunakan untuk

mengesan isipadu jus buah naga. Sumber radioaktif mengandungi radioisotop

yang memancarkan zarah β.

(a) What is meant by a radioisotope?

Apakah yang dimaksudkan dengan radioisotop?

…………………………………………………………………………………

[1 mark]

[1 markah]

(b) (i) What is a β particle?

Apakah zarah β?

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

[1 mark]

[1 markah]

(ii) State one suitable detector to detect β particles in air.

Nyatakan satu pengesan yang sesuai untuk mengesan zarah β

di udara.

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

[1 mark]

[1 markah]

(c) State one reason why the radioisotopes which emits the following

radioactive radiation is not used in the system:

Nyatakan satu sebab mengapa radioisotope yang mengeluarkan

sinaran radioaktif berikut tidak digunakan dalam sistem itu:

(i) α particle

Zarah α

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

[1 mark]

[1 markah]



(ii) γ rays

Sinar γ

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

[1 mark]

[1 markah]

(d) What is the type of material used for the container to store the

radioactive source as to ensure safe keeping of the radioactive source?

Apakah jenis bahan untuk digunakan bagi bekas untuk menyimpan

sumber radioaktif bagi memastikan pentimpanan sumber radioaktif

adalah selamat?

…………………………………………………………………………………

[1 mark]

[1 markah]

(e) Table 8 shows the readings of the rate meter for 6 bottles which passing

through the detector and radioactive source ?

Jadual 8 menunjukkan bacaan meter kadar bagi 6 botol yang melalui

pengesan dan sumber radioaktif.

Bottle

Botol A B C D E F

Rate meter reading

(Count per minute)

Bacaan meter kadar

(Bilangan per minit)

464 468 467 462 568 470

Table 8

Jadual 8

Based on Table 8;

Berdasarkan Jadual 8;

(i) Which bottle shows least volume of juice?

Botol yang manakah menunjukkan isipadu yang tidak cukup?

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

[1 mark]

[1 markah]



(ii) State a reason for the answer in 8(e)(i).

Nyatakan sebab jawapan di 8(e)(i).

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

…………………………………………………………………………...

[2 marks]

[2 markah]

(f) (i) What can be observed at the rate meter’s reading if all the bottles

and radioactive source are removed?

Apakah yang dapat diperhatikan pada bacaan meter kadar jika

kesemua botol dan sumber radioaktif dialihkan?

……………………………………………………………………..........

[1 mark]

[1 markah]

(ii) Explain the answer in 8(f)(i).

Terangkan jawapan dalam 8(f)(i).

……………………………………………………………………..........

……………………………………………………………………..........

[2 marks]

[2markah]



Section B

Bahagian B

(20 marks)

(20 markah)

Answer any one question from this section.

Jawab mana-mana satu soalan daripada bahagian ini.

9. Diagram 9.1 and Diagram 9.2 show two identical frying pan filled with cooking

oil of different amount used to fry an identical fish on a gas stove. The cooking

oil has low specific heat capacity.

Rajah 9.1 dan Rajah 9.2 menunjukkan dua buah kuali yang serupa berisi

minyak masak dalam kuantiti yang berbeza digunakan untuk menggoreng

seekor ikan yang serupa di atas sebuah dapur gas. Minyak masak itu

mempunyai muatan haba tentu yang rendah.


Rajah 9.1 Rajah 9.2

After a few minutes, it was observed that the fish in Diagram 9.1 is scorched

and the fish in Diagram 9.2 is well-cooked even though was fried under the

same state of flame.

Selepas beberapa minit, dapat diperhatikan ikan dalam Rajah 9.1 hangus dan

ikan dalam Rajah 2 masak sempurna walaupun digoreng di bawah keadaan

api yang sama.

(a) What is the meaning of specific heat capacity? [1 mark]

Apakah yang dimaksudkan dengan muatan haba tentu? [1 markah]

(b) Using Diagram 9.1 and Diagram 9.2, compare:

Menggunakan Rajah 9.1 dan Rajah 9.2, bandingkan:

(i) The mass of the cooking oil used

Jisim minyak memasak yang digunakan



(ii) The quantity of heat supplied

Kuantiti haba yang dibekalkan.

(iii) The final temperature of the cooking oil

Suhu akhir minyak memasak.

[3 marks]

[3 markah]

(c) Relate the mass of the cooking oil with the state of fishes to deduce the

relationship between mass and an increase in temperature.

Hubungkaitkan jisim bagi minyak memasak dengan keadaan ikan untuk

membuat kesimpulan tentang hubungan antara jisim dan kenaikan

suhu.

[2 marks]

[2 markah]

(d) Diagram 9.3 shows a boy at the sea shore.

Rajah 9.3 menunjukkan seorang budak lelaki berada di tepian pantai

Diagram 9.3

Rajah 9.3

He feels the sea is cooler than land during the day but is warmer during

the night.

Explain why.

Dia berasa laut adalah lebih sejuk daripada daratan semasa siang

tetapi lebih panas semasa malam.

Terangkan mengapa.

[4 marks]

[4 markah]



(e) Diagram 9.4 shows a car engine radiator.

Rajah 9.4 menunjukkan satu radiator enjin kereta.

Diagram 9.4

Rajah 9.4

You are required to design a car engine radiator which can function

effectively, based on the following aspects:

Anda ditugaskan untuk mereka bentuk sebuah radiator enjin kereta

yang dapat berfungsi dengan berkesan, berdasarkan aspek-aspek

berikut:

- The size of the fan

Saiz kipas

- The numbers of the fin blade

Bilangan bilah sirip

- The type and characteristics of the cooling liquid

Jenis dan sifat-sifat cecair penyejuk

[10 marks]

[10 markah]



10. Diagram 10.1 and Diagram 10.2 show the relative motion between the magnet

and solenoid. The galvanometer’s pointer deflected due to induced current

produced.

Rajah 10.1 dan Rajah 10.2 menunjukkan gerakan relatif antara magnet bar

dan solenoid. Jarum galvanometer terpesong disebabkan oleh arus aruhan

dihasilkan.


Rajah 10.1 Rajah 10.2

(a) What is the meaning of induced current ?

Apakah yang dimaksudkan arus aruhan ? [1 mark]

[1 markah]

(b) (i) Using Diagram 10.1 and 10.2; compare the height of the magnet

bar from the solenoid, the number of turns of wire at the

solenoid, and the angle of deflection of the galvanometer.

Menggunakan Rajah 10.1 dan Rajah 10.3; bandingkan

ketinggian bar magnet daripada solenoid, bilangan lilitan dawai pada

solenoid, dan sudut pesongan bagi galvanometer.

[3 marks]

[3 markah]

(ii) State the relationship between:

Nyatakan hubungan antara:



The number of turns of wire at the solenoid with the angle of

deflection of the galvanometer.

Bilangan lilitan dawai pada solenoid dengan sudut pesongan

bagi galvanometer. [1 mark]

[1 markah]

The deflection of the galvanometer with the induced current

produced.

Pesongan bagi galvanometer dengan arus aruhan yang

dihasilkan. [1 mark]

[1 markah]

(c) The galvanometer’s pointer in Diagram 10.1 and Diagram 10.2

deflected in different direction.

The observation can be explained by a physics’ law.

Jarum galvanometer dalam Rajah 10.1 dan Rajah 10.2 terpesong

dalam arah yang berlawanan.

Pemerhatian ini boleh diterangkan oleh satu hukum fizik.

(i) Name the physics’ law.

Namakan hukum fizik itu. [1 mark]

[1 markah]

(ii) Diagram 10.3 shows a transformer.

Rajah 10.3 menunjukkan sebuah transformer.

Diagram 10.3

Rajah 10.3

Explain why a transformer uses alternating current (a.c).

Terangkan mengapa sebuah transformer menggunakan arus

ulang alik (a.u). [3 marks]

[3 markah]



(d) Diagram 10.4 shows a cross-section of a bicycle dynamo. The output of

the dynamo is connected to a bicycle lamp.

Rajah 10.4 menunjukkan keratan rentas bagi sebuah dynamo basikal.

Output dinamo itu disambung kepada sebuah lampu basikal.

Diagram 10.4

Rajah 10.4

Using appropriate physics concepts, explain the use of suitable ways

and design to improve the brightness of the bulb.

Menggunakan konsep fizik yang sesuai, terangkan kegunaan kaedah

serta reka bentuk untuk meningkatkan kecerahan mentol.

[10 marks]

[10 markah]



Section C

Bahagian C

(20 marks)

(20 markah)

Answer any one question from this section.

Jawab mana-mana satu soalan daripada bahagian ini.

11. Diagram 11.1 shows the image seen by a magnifying glass.

Rajah 11.1 menunjukkan imej dilihat menggunakan kanta pembesar

Diagram 11.1

Rajah 11.1

(a) (i) What is the type of lens used as a magnifying glass?

Apakah jenis kanta yang digunakan sebagai kanta pembesar?

[1 mark]

[1 markah]

(ii) Draw a ray diagram to show the formation of image by a

magnifying glass.

State the characteristics of the image formed.

Lukiskan satu rajah sinar untuk menunjukkan pembentukkan imej

oleh satu kanta pembesar.

Nyatakan ciri-ciri imej yang terhasil.

[4 marks]

[4 markah]



(b) An object is placed 30 cm in front of a lens with a power of + 5 D.

Satu objek diletakkan 30 cm di depan kanta berkuasa +5 D.

(i) Calculate the focal length of the lens

Hitungkan panjang fokus kanta. [2 marks]

[2 markah]

(ii) Calculate the image distance

Hitungkan jarak imej [2 marks]

[2 markah]

(iii) Calculate the magnification of the image

Hitungkan pembesaran bagi imej [1 mark]

[1 markah]

(c) Diagram 11.2 shows a compound microscope.

A compound microscope is used to see a very tiny object.

Rajah 11.2 menunjukkan sebuah mikroskop majmuk.

Mikroskop majmuk digunakan untuk melihat objek yang sangat halus.

Diagram 11.2

Rajah 11.2

Table 11 shows the characteristics of four different simple microscope.

You are required to determine the most suitable microscope to see tiny

object clearly.Study the specifications of all the four microscopes from

Table 11 below:

Jadual 11 menunjukkan ciri-ciri bagi empat mikroskop ringkas.

Anda dikehendakki menentukan mikroskop yang paling sesuai untuk

melihat objek halus dengan jelas. Kaji spesifikasi keempat-empat

mikroskop itu daripada Jadual 11 dibawah:



Microscope

Mikroskop

Type of lenses

Jenis kanta

Focal length of

objective lens,fo /

Focal length of

eyepiece lens,fe

Jarak fokus

kanta objek fo/

Jarak fokus

kanta mata fe

Distance

between two

lenses, L (cm)

Jarak antara

dua kanta,

L (cm)

Power of

eyepiece

Kuasa

kanta mata

P Concave

cekung 60cm / 10 cm L > fo + fe

high

tinggi

Q Concave

cekung 10 cm / 60 cm L = fo + fe

Low

rendah

R Convex

cembung 4 cm / 6 cm L > fo + fe

high

tinggi

S Convex

cembung 6 cm / 4 cm L = fo + fe

low

rendah

Table 11

Jadual 11

Explain the suitability of each characteristic and then determine the most

suitable microscope to enable tiny object seen clearly.

Give reason for your choice.

Terangkan kesesuaian setiap ciri dan seterusnya tentukan mikroskop yang

paling sesuai untuk membolehkan objek halus dilihat dengan jelas.

Beri sebab bagi pilihan anda.

[10 marks]

[10 markah]

12. An electrical iron has a power rating 1 000 W, 240 V is used for 2 hours.

Sebuah seterika elektrik mempunyai perkadaran kuasa 1 000 W, 240 V

digunakan selama dua jam.

(a) What is the meaning of ‘1 000 W, 240 V’? [1 mark]

Apakah yang dimaksudkan dengan ‘1 000 W, 240 V’? [1 markah]

(b) Calculate;

Hitung;

(i) The electric energy consumed by the iron. [2

marks]

Tenaga elektrik yang digunakan oleh seterika itu [2

markah]



(ii) The electric current flows in the iron. [2

marks]

Arus elektrik yang mengalir dalam seterika itu. [2 markah]

(c) Diagram 12.1 shows a fuse.

Rajah 12.1 menunjukkan satu fius.

Diagram 12.1

Rajah 12.1

(i) Explain how a fuse works. [2 marks]

Terangkan bagaimana sebuah fius berfungsi. [2 markah]

(ii) Based on the answer in 12(b)(ii), state the value for suitable fuse

to be used in the iron. [1 mark]

Berdasarkan jawapan dalam 12(b)(ii), nyatakan nilai yang sesuai

bagi fius untuk digunakan dalam seterika itu. [1 markah]

(iii) In the electrical wiring at a house, there are earth wire, neutral

wire and live wire.

To which wire a fuse is connected?

Give one reason for your answer.

Dalam pendawaian elektrik bagi sebuah rumah, terdapat dawai

bumi, dawai neutral dan dawai hidup.

Pada dawai yang manakah suatu fius itu disambung?

Beri satu sebab bagi jawapan anda.

[2 marks]

[2 markah]

(d) Table 12 shows four specifications of four type of metals, K, L, M and N,

that can be used as a wire in a fuse.

Jadual 12 menunjukkan empat spesifikasi empat jenis logam, K, L, M

dan N yang boleh digunakan sebagai dawai dalam suatu fius.



Type of

metal

Jenis logam

Melting

point

Takat lebur

Specific

heat

capacity

Muatan

haba tentu

Resitance

Rintangan

Thickness

of wire

Ketebalan

dawai

K High

Tinggi

Low

Rendah

High

Tinggi

Thin

Nipis

L Low

Rendah

High

Tinggi

Low

Rendah

Thick

Tebal

M Low

Rendah

Low

Rendah

High

Tinggi

Thin

Nipis

N High

Tinggi

High

Tinggi

High

Tinggi

Thick

Tebal

Table 12

Jadual 12

You are required to determine the most suitable metal to be used as a

fuse wire. Study the specifications of all the four metals based on the

following aspects:

Anda diminta untuk mengenal pasti logam yang paling sesuai untuk

digunakan sebagai dawai fius. Kaji spesifikasi keempat-empat logam itu

berdasarkan aspek-aspek berikut:

- The melting point of wire

Takat lebur dawai

- The specific heat capacity of wire

Muatan haba tentu dawai

- The resitance of wire

Rintangan dawai

- The thickness of wire

Ketebalan dawai

Explain the suitability of the aspects.

Terangkan kesesuaian aspek-aspek berikut.

[10 marks]

[10 markah]

END OF QUESTION.

SOALAN TAMAT.

SKEMA/4531/2 SET 1 MODUL G-CAKNA

PANEL MODUL G-CAKNA 1

QUESTION MARKING SCHEME SUB-MARK

TOTAL MARK

1(a) Inverted / Virtual / Enlarged / Magnified 1 1

(b)(i) Atau Mark dapat jika (b)(ii) betul

1

3

(ii) M1 The object is at u < f M2 Correct ray diagram & symbol of mirror (Shape of mirror bergantung kepada ray diagram untuk cahaya datang) Syarat : M2 dapat jika objek, O dan imej, I dilabel

1 1

TOTAL

4 M

2(a)(i) Electromotive force / e.m.f. 1 2

(ii) 1.5 V ( with correct unit) 1

(b)(i) M1 Calculate the gradient of graph

𝐺𝑟𝑎𝑑𝑖𝑒𝑛𝑡 = 1.5 −1.0

0.0 − 0.4 // - 1.25

M2 State r = - gradient // state correct value of r

1.25 VA-1 /

1 1

2

(ii) Increases 1 1

TOTAL

5 M




TOTAL MARK

3 (a) Electrical energy → Heat energy

1

1

(b) M1 0.3 x 4200 x (100-28) M2 90720 J (with unit)

1 1

2

M1 800 x 150 0.05 M2 2 x 106 Jkg-1 (with unit)

1 1

2

Heat is used to overcome/break the attraction force/bonding between the molecules

1 1

TOTAL 6 M

4 (a) Pascal’s principle (Correct spelling) 1 1

(b) Produce air bubble at high temperature // Boiling point low 1 1

(c)(i) M1 Piston A has smaller surface area to produce big pressure M2 Piston B has bigger surface area to produce big force at piston B

1 1

2

(ii) Increase surface area of piston B // Decrease surface area of piston A

1 1

(d) M1 50 𝑥 15

2

M2 375 N (With unit)

1 1

2

TOTAL 7 M

5 (a) Rate of change of momentum Terima jika beri rumus dengan memberi maksud kepada setiap simbol

1 1

(b) (i) Diagram 5.1 > Diagram 5.2 // vice-versa 1

3 (ii) Diagram 5.1 < Diagram 5.2 // vice-versa 1

(iii) Diagram 5.1 > Diagram 5.2 // vice-versa 1

(c) (i) When time (of contact) decreases, displacement (of the ball) increases

1

2 (ii) When change of momentum is increases, the

displacement (of the ball) increases 1




TOTAL MARK

(d) (i) F inversely proportional to t // F ∝ 1

𝑡 1

2 (ii) F directly proportional to (mv – mu) / change of

momentum // F ∝ change of momentum

1

TOTAL 8 M

6 (a) Light that has one colour / wavelength / frequency 1 1

(b) M1 Overlapping between crest and crest / trough and trough producing a constructive interference / bright fringes M2 Overlapping between crest and trough producing a destructive interference / dark fringes

1 1

2

(c) (i) Diagram 6.1 < Diagram 6.2 / vice-versa // a1 < a2 / vice-versa 1

4 (ii) Same / equal 1

(iii) Same / equal / D1 = D2 1

(iv) Diagram 6.1 > Diagram 6.2 / vice-versa 1

(d) x ∝ 1

𝑎 1 1

TOTAL 8 M

7 (a)(i) A material( that can) conduct (electricity) better than insulators but not as good as metal conductor

1 1

(ii) Diagram 7.1 1 1

(iii) M1 A diode only allow current to flow in one direction // Diode is in forward biased M2 Resistance of diode is low

1 1

2

(b) (i)

1 2

(ii) Capacitor 1




TOTAL MARK

(c) (i) (ii) (iii)

M1 Susunan diod betul M2 Kedudukan kapasitor selari dengan R (Terima tanpa label – symbol betul) M3 Bentuk waveform betul * Terima kedudukan diod dan waveform terbalik

1 1 1

3

(d) Full wave rectification 1 1

TOTAL 10 M

8 (a) - an unstable nuclei//unstable isotope 1 1

(b)(i) Fast moving electron 1 2

(ii) G-M tube 1

(c) (i) -not strong enough to pass through the juice 1

2 (ii) - will not be stopped by the juice 1

(d) Lead container 1 1

(e) (i) E 1

3

(ii) M1 the most radioactive emission pass through the juice M2 the reading of rate meter is the highest

1

1

(f) (i) still there is reading shown

1

3

(ii) M1 back ground reading M2 back ground reading is from radioactive materials naturally present in soil, rock or cosmic radiation

1

1

TOTAL 12 M




TOTAL MARK

9 (a) Quantity of heat required by 1 kg of mass to increase the temperature by 1oC 1 1

(b) (i) Mass of cooking oil in Diagram 9.1 < Diagram 9.2 // vice- versa 1

3 (ii) Quantity of heat is equal / same 1

(iii) final temperature in Diagram 9.1 > Diagram 9.2 1

(c) M1 When mass of cooking oil is small, the fish is overcooked /scorched // vice-versa M2 When mass is small, increase in temperature is high // mass inversely proportional to increase in temperature

1 1 2

(d) M1 During the day, the sea and the land receive the same amount of heat from the sun M2 Land heated to a high temperature because land has low specific heat capacity // vice-versa M3 During night, air above the land and sea release Heat M4 Temperature of the sea decreases slowly because water has low specific heat capacity // vice-versa

1 1 1 1

4

(e) M1 Size of fan big M2 More wind blows to cool the hot water faster M3 Number of fins many M4 Can cool the engine faster M5 Cooling liquid is water M6 High specific capacity// high boiling point//cheap//easily available//does not react with the inner part of engine M7 Liquid that has high specific heat capacity M8 Transfer large quantity of heat with small increase in temperature M9 Liquid of high boiling point

1 1 1 1 1 1 1 1 1

10




TOTAL MARK

M10 Not easy to vapor when absorb heat from the engine

1

TOTAL 10 M

10 (a) Current that produced when there is a relative motion between a wire conductor and a solenoid, the magnetic field is cuts

1 1

(b)(i) M1 The height is equal M2 Number of turns in Diagram 10.1 < Diagram 10.2 // vice-versa M3 Angle of deflection in Diagram 10.1 < Diagram 10.2 // vice-versa

1 1 1

3

(ii) M1 When number of turns increases, angle of deflection increases // vice-versa M2 When the induced current produced increases, the deflection of the galvanometer increases // vice- versa

1 1 2

(c)(i) Lenz’s law (Correct spelling) 1 1

(ii) M1 When ac current produced, the soft iron core is magnetised and demagnetized M2 Producing a changing magnetic flux M3 Producing an induced voltage at secondary coil

1 1 1

3

(d) M1 Increase speed of rotation M2 Increase the rate of cutting of magnetic flux M3 Use a stronger magnet M4 To produce more magnetic flux M5 Increase the number of turns at coil M6 More magnetic flux is cut M7 The coil is wound on a soft iron core M8 Increase the strength of magnetic flux

1 1 1 1 1 1 1 1

10




TOTAL MARK

M9 Increase the area of cross section/ thickness / diameter of wire at coil M10 Decrease resistance, more current is induced

1 1

TOTAL 20 M

11 (a) (i) Convex lens

1

(ii) M1 Object at u < f M2 Ray refract to F and ray pass through center of lens M3 Virtual line and image is labeled

M4 State : Virtual, Upright, Magnified

1 1 1 1

4

(b) (i) M1 1

5 //

100

5

M2 0.2 m // 20 cm

1 1

5 (ii) M1

1

20−

1

30

M2 60 cm // 0.6 m (Dengan unit)

1 1

(iii) 60

30 // 2 (tanpa unit) 1



(c)

Characteristics Explanation

Type of lenses Jenis kanta:

convex

Produce real image

Focal length of objective lens,fo / Focal length of

eyepiece lens,fe

Jarak fokus kanta objek fo/ Jarak fokus kanta mata fe,

4 cm / 6 cm

Both lenses have high power of the lens to produce bigger image

Distance between two lenses, L (cm) Jarak antara dua kanta,

L (cm) L > fo + fe

Normal adjustment to produce sharp image

Power of eyepiece Kuasa

kanta mata High / tinggi

Eyepiece act as magnifying glass to magnified the image

Choosen : R Because R are convex lenses,has f0= 4 cm and fe = 6 cm, L > fo + fe and has high power of eyepiece.

1, 1

1, 1

1 , 1

1.1

1,1

10

TOTAL 20 M

12 (a) 1 000 J of energy is consumed in 1 s when connected to a 240 V power supply 1 1

(b) (i) M1 1 000 x 2 x 60 x 60 M2 7.2 x 106 J (With unit)

1 1

4 (ii) M1 1000

240

M2 4.17 A (with unit)

1 1

(c) (i) M1 When high current flows / short circuit occurs M2 The wire in the fuse will melt and break the circuit

1 1

2

(ii) 5 A 1 1

(iii) M1 Live wire M2 Because live wire carries current

1 1

2




TOTAL MARK

(d) M1 Melting point is low M2 Easy to break the circuit when high current flows through it M3 Low specific heat capacity M4 Easy to get hot M5 High resistance M6 Easy to get hot M7 Thickness of wire small / thin wire M8 High resistance // Easy to hot // less mass // requires small space M9 M M10 Because (M1,3,5 & 7 / M2,4.6.8)

1 1 1 1 1 1 1 1 1 1

10

TOTAL 20 M

SKEMA TAMAT.

Skema ini adalah cadangan jawapan. Jika ada jawapan lain yang setara

adalah mengikut budi bicara tuan/puan.

modul fizik cakna kelantan spm 2014 k2 set 1 dan skema

Education