trial kedah spm 2013 fizik skema k1 k2 k3 set b

7/27/2019 Trial Kedah SPM 2013 FIZIK SKEMA K1 K2 K3 SET B

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PROGRAM PENINGKATAN PRESTASI AKADEMIK SPM

TAHUN 2013

SET B

PERATURAN PEMARKAHAN

Paper 1

1 D 26 A

2 B 27 B

3 A 28 D

4 C 29 B

5 B 30 C

6 A 31 A

7 C 32 C

8 D 33 B

9 B 34 B

10 C 35 A

11 C 36 C

12 B 37 A

13 C 38 C

14 A 39 C

15 D 40 A16 B 41 C

17 D 42 A

18 A 43 D

19 D 44 B

20 C 45 A

21 B 46 A

22 A 47 D

23 B 48 A

24 A 49 B

25 B 50 A

FIZIKwww.m y s ch o ol ch i l d r en. c om

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M u a t t ur un ( p er c um a ) s o al anl ai n d i :

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TAHUN 2013

SET B

FIZIK

Kertas 2


Peraturan pemarkahan ini mengandungi 10 halaman bercetak

Set B

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2

PHYSICS

Paper 2

SECTION A

NO. MARKING CRITERIA MARKSUB TOTAL

1 (a) State the sensitivity of the metre rule correctly - 0.1 cm 1

(b) (i) State the diameter of five ball bearings correctly

- 3.1 cm 1

(ii) State the diameter of one ball bearing correctly- 0.62 cm 1

(c) State the instrument correctly - Vernier calipers // micrometer screw gauge 1 4

2(a) (i) State the explanation correctly 1

- energy is used to break the bonds//change the state of matter

(ii) State the explanation correctly 1

- energy is used to increase the kinetic energy of the molecules

(b) Correct substitution 1

- 0.2 x 3.36 x 10

5

Correct answer and correct unit 1

- 6.72 x 104

J

(c) Mark on the box correctly 1

- There is no net transfer of energy between the water and the

surroundings5

3(a) Name the mirror correctly 1

- convex mirror

(b) State the focal length correctly 1

- f = 10 cm

(c) Ray diagram draw correctly 1

- ray parallel to the principal axis is reflected and pass through the

principal focus

Marks the image correctly 1

- intersection of the ray with the given ray

(d) State two characteristics of the image correctly 2 6

- virtual / smaller (diminished) / upright


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3

NO. MARKING CRITERIAMARK

SUB TOTAL

4(a) Name the process correctly

- Thermionic emission 1

(b) (i) Describe the motion correctly- Uniform acceleration 1

(ii) Describe the motion correctly - Uniform velocity 1

(c) (i) State the correct answer- Alternating current 1

(ii) Calculate the period correctly

T = 3 x 0.02 = 0.06 s 1State the frequency and unit correctly

f =1

T=

1

0.06= 16.7 Hz

1

(iii) Sketch the waveform correctly- Sinusoidal with one complete cycle 1 7


SUB TOTAL

5(a) (i) State the function correctly- To supply heat 1

(ii) State the comparison of reading correctly

- Same 1

(iii) State the explanation correctly- Heat is used to break the bonds/weaken the force of attraction 1

(b)

State two common characteristics correctly

0.01

s / div

4

V / div


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4

Change in state//mass decreases

Heat is absorbed, temperature remains unchanged

1

1

(c) State the heat involved correctly- (Specific) latent heat 1

(d) State explanation correctlySnow requires heat to melt

Heat is absorbed from the surroundings

1

1 8

6(a) State the meaning correctly 1

- Time for the activity of the radioactive substance to become half of

the original activity // Time taken for half of the mass of radioactive

substance to decay

(b) (i) State the half life correctly

- X : 10 minutes

- Y : 5 minutes

1

1

(ii) State the answer correctly

- X : 50 %

- Y : 25 %

1

1

(c) State the comparison correctly 1

- The decay rates for substance X is slower//vice versa

State the relationship correctly 1

- The shorter the half life, the higher the decay rate

(d) Give the reason correctly 1

- Background radiation 8

7(a) State the meaning correctly 1

- the capacity to do work

(b) Correct expression 1

-220049.0

2

1××

Correct answer 1

- 9.8 J

(c) State the transformation correctly 2

- Kinetic energy→ potential energy→ kinetic energy

(d) State a suitable suggestion and reason 2

- bigger force

- ball has more kinetic energy / momentum

State a suitable suggestion and reason 2

- use a heavier golf club // raise the golf club higher / at a bigger angle

- more energy is transferred to the golf ball

(e) State the correct factor 1 10

- angle of projection // any suitable factor not mentioned above


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5


SUB TOTAL

8(a) State the phenomenon correctly 1- Electromagnetic induction

(b) State the terminals correctly 1

- W and Z

- X and Z

(c) (i) State the terminals correctly 1

- W and Z

(ii) Give the reason correctly 2

- Highest ratio of number of turns of secondary coil to number of turns

of primary coil // highestP

S

N

N

(d) (i) Complete the values of Pin correctly 1

- A : 60 W

B : 60 W

C : 72 W

D : 72 W

All values of Pin calculated correctly

Complete the values of e correctly 2

- A : 0.80B : 0.90

C : 0.80

D : 0.90

All values of e calculated correctly, 2 marks

2 or 3 calculated correctly, 1 mark

(ii) Give the choice correctly 1

- A and B (accept e.c.f.)

(iii) Give the choice correctly 1

- B and D (accept e.c.f.)

(iv) Give the reason correctly 1

- Highest efficiency

(v) Give the choose of the most suitable bulb correctly 1 12

- Transformer B


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6

SECTION B

NO MARKING CRITERIA MARK

SUB TOTAL

9(a) (i) State the light phenomenon correctly - Total internal reflection 1 1

(ii) State the function of objective lens correctly - used to produce a real, inverted and magnified image // intermediate

image 1

State the function of eyepiece correctly - as a magnifying glass 1 2

(iii) State two advantages of using fibre optics correctly

- can carry large amount of data/information 1 - transmit signals with very little loss of energy 1

- can transmit large amount of signals at one time

- very much thinner and lighter 2

(b) (i) Compare the size of object and the size of image correctly

- in diagram 9.2/9.3 the size of object is equal to the size of image 1

(ii) Compare the object distance and the image distance correctly

- in diagram 9.2/9.3 the object distance is equal to the image distance 1 2

(c) (i) Compare the focal lengths correctly - Focal length of lens X is shorter than the focal length of Y 1

(ii) Compare the thickness of lens correctly - Lens X is thicker than lens Y 1

(iii) Relate the focal length to the thickness correctly

- The thicker the lens, the shorter the focal length 1 3


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7

(d) (i) Draw the ray diagram of a compound microscope correctly

- R as an eye piece and T as an objective lens

- Fe and Fo are not overlapped- Light rays to form first image

- First image formed shown

- Light rays to form final image

- Final image formed shown

1

11

1

1

1

State the characteristics of final image correctly

Virtual, magnified and inverted

(Any two) 2 8

(ii) Suggestion on the modification to produce bigger image

By using more powerful // shorter focal length lenses 1

Suggestion on modification to produce brighter image

By using a plane mirror near the object to reflect more rays / a lamp near

the object / Objective lens of bigger diameter 1 2

20

Object

T

Fe Fo

R Eye

Image2

Object

T

Fe Fo

REye

Fo

Fe

Final

Image

First

Image


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8


SUB TOTAL 10(a) (i) State the reason correctly 1 1

- To ensure constant velocity of water wave / ripple.

(ii) Name the water wave phenomenon correctly 1 1

- Interference

(iii) State the amplitude of wave correctly 1 1

- Zero or minimum

(iv) Diagram showing superposition of a crest and a trough 1

Diagram showing the resultant amplitude 1 2

- zero // minimum // smaller than the original amplitude

(b) (i) Compare the distance between vibrators correctly 1

- The distance in Diagram 10.1 is higher

(ii) Compare the distance between the adjacent nodal line correctly 1- The distance in Diagram 10.1 is smaller

(iii) Compare the wavelength correctly 1

- Same

(iv) State the relationship between a and x correctly 1 5

- The higher the a, the smaller the x // a inversely proportional to x

// a x

1α

Reject Equation D

ax=λ

(c) (i) Suggest the number of loudspeakers correctly 1- Increase the number of loudspeakers // use more loudspeakers

Give the reason correctly 1

- To produce louder sound // Sound transmitted covers a bigger

area

(ii) Suggest position of the loudspeaker correctly 1

- Placed at all corners // different locations


- Cover a bigger area // the spectators around the area can hear

clearly

(iii) Suggest the amplification correctly 1

- High amplification

Give the reason correctly 1 6- to produce louder sound // sound can travel further

(d) Give the choice of D correctly 1

- Large/big


- Less diffraction // spreading // sound travels straight

Give the choice of L correctly 1

- Large/big

Give the reason correctly 1 4

- Vibrates more air // produces louder sound

20


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9

SECTION C


SUB TOTAL

11(a) (i) State the meaning correctly- Archimedes’ principle states that the buoyant force on an object

immersed in a fluid is equal to the weight of fluid displaced by the

object. 1 1

(ii) Explain why a balloon filled with helium gas rises up in the air

correctly- The balloon acted by two forces: Upthrust and the weight of the

balloon 1

- The density of helium gas is less than the density of surrounding air

1

- Upthrust equals to the weight of the air displaced by the ballloon 1

- Upthrust is higher than the weight of the balloon 1 4

(b) M1 States a suitable size of the balloon- Large balloon 1

M2 State the reason for M1 correctly- To produce bigger buoyant / upthrust // Increase the volume of the air

displaced 1

M3 State a suitable number of the burner

- Use 2 burners // Many burners 1

M4 State the reason for M3 correctly

- To produce bigger flame // heat up the gas in the balloon faster

1

M5 State a suitable type of fabric of the balloon- Synthetic nylon 1

M6 State the reason for M5 correctly - Light-weight, strong and air-proof material 1

M7 State a suitable temperature of the air in the balloon- High temperature of the air in the balloon 1

M8 State the reason for M7 correctly - Reduce the density /weight of the air in the balloon 1

M9 Choose the most suitable hot air balloonHot air balloon Q is chosen 1

M10 State the reason correctly Large balloon, use 2 burners / many burners, use synthetic nylon and has

high temperature of the air in the balloon // or combination of thereasons 1 10


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10

(c) (i) Giving a correct equationWeight = buoyant force / weight of the water displaced 1

Substitute the equation correctlym x 10 = (10 x 2 x 10

-6) x 1000 x 10 1

Correct answer with unitm = 0.02 kg /20 g 1

(ii) Show a correct substitution20 = (12 x 2) ρ 1

Correct answer with unitρ = 0.83 g cm

-31 5

20

12(a) State the two properties and explanations correctly

- High melting point- Can withstand high temperature / heat // does not melt easily

- Not easily oxidized

- Can last longer

11

1

1 4

(b) (i) State the meaning correctly 1

- Maximum current flowing through the fuse is 0.5 A

(ii) State the suitable melting point and reason correctly 1+1

1 Low melting point

2 Can melt easily

State the suitable specific heat capacity and reason correctly 1+1

3 Low specific heat capacity

4 Can heat up easily State the suitable diameter and reason correctly 1+1

5 Small

6 High resistance // more heat released // easy to break

State the suitable resistivity and reason correctly 1+1

7 High

8 High resistance // more heat released

State most suitable choice of generator and justification correctly 1+1 10

9 Z

10 Low melting point, low specific heat capacity, small diameter and

high resistivity

(c) (i) Correct substitution 1

-240

500

Correct answer and unit 1

- 2.08 A

(ii) State correctly 1

- Not suitable

(iii) Correct substitution 1

- 500 x (10x60)

Correct answer with unit 1 5

- 300 000 J

20


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1


TAHUN 2013

SET B

FIZIK

Kertas 3


Peraturan pemarkahan ini mengandungi 3 halaman bercetak

Set B


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2

Section A

1 (a) (i) Length // L 1

(ii) Current // I 1

(iii) diameter of wire // type of material of wire 1

(b) (i) X = 0.2 1

(ii)

L / cm1-cm /

1

L

i / A I / A

0.2 5.00 2.0 1.8

0.3 3.33 1.4 1.2

0.4 2.50 1.1 0.9

0.5 2.00 0.9 0.7

0.6 1.67 0.8 0.6

4 columns with labels L / cm,1-

cm / 1

L, i / A, I / A 1

5 values of

L

1correct 1

5 values of i correct 1

5 values of I correct [4 correct – 1 mark] 2

all values of

L

1to 1, 2 or 4 decimal places 1

all values of i correct to 1 decimal place 1

(c) I at the vertical axis, L

1at the horizontal axis 1

Vertical axis labeled I / A, horizontal axis1-

cm / 1

L

1

Uniform scale 1

5 points plotted correctly 1

best straight line 1

(d) I is directly proportional to L

11

17

[Maximum = 16]

2 (a) (i) Decreases 1

(ii) Show intraplolation line 1

76 1

(iii) 28 1

(iv) 42 1

(b) (i) shown on graph 1

Correct expression, e.g.0200

2870

−

−1

Correct answer , e.g. 0.21 1

(ii) Correct substitution, e.g.21.020.0

48

×

1

Correct answer and unit , e.g. 1143 J kg–1

oC

–11+1

(c) The liquid is stirred continuously so that its temperature is uniform //

The eye is at the same level as the meniscus of the mercury in the thermometer 1[12]


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3

Section B

3 (a) The pressure affects the volume the of the air 1

(b) The higher the pressure, the smaller the volume 1

(c) (i) To investigate the relationship between the pressure and volume of air 1

(ii) MV : Pressure 1

RV : Volume 1

CV : Mass // Temperature 1

(iii) Glass syringe, Bourdon gauge, rubber tube 1

(iv) Labeled diagram 1

(v) The piston is pushed slowly inwards until the pressure is 120 kPa 1

The volume of the air in the syringe is recorded. 1

The above steps are repeated with pressure 140 kPa, 160 kPa, 180 kPa and 200 kPa 1

(vi) Table with 2 columns for pressure and volume. Values of pressure written. 1

(vii) Draw a graph of volume against pressure 1

[Part (c): 11 marks, Max. 10] 12

4 (a) The thickness affects the resistance of the wire 1

(b) The bigger the thickness, the smaller the resistance 1

(c) (i) To investigate the relationship between the thickness and resistance 1

(ii) MV : thickness 1

RV : resistance 1

CV : length // temperature // type of material 1

(iii) Five pieces of eureka wires, ammeter, voltmeter, battery, connecting wires, switch, micrometer

screw gauge 1

(iv) Labeled diagram 1

(v) The micrometer screw gauge is used to measure the thickness, t 1, of the eureka wire 1

The current, I , and potential difference, V , are measured with the ammeter and voltmeter.

The resistance is calculated, I

V R = 1

The above steps are repeated with thickness t 2, t 3, t 4, and t 5 1

(vi) Table with 4 columns for t, I, V and R. Values of t written. 1

(vii) Draw a graph of R against t 1

[Part (c): 11 marks, Max. 10] 12


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trial kedah spm 2013 fizik skema k1 k2 k3 set b

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