spm trial 2012 physics qa kedah
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PROGRAM PENINGKATAN PRESTASI AKADEMIK SPM
TAHUN 2012
FIZIK
Kertas 1
PERATURAN PEMARKAHAN
Peraturan pemarkahan ini mengandungi 2 halaman bercetak
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2
PHYSICS
PAPER MARKSPaper 1 50Paper 2 100Paper 3 40
Total 190
Jumlah markah diskalakan kepada 100%
Paper 1
1 C 26 C2 D 27 D3 C 28 C4 D 29 A5 B 30 D
6 C 31 A7 A 32 B8 B 33 C9 A 34 B
10 B 35 A11 C 36 A12 B 37 D13 B 38 C14 C 39 C15 D 40 D
16 C 41 A17 B 42 D18 A 43 D19 D 44 D20 C 45 A21 B 46 A22 A 47 B23 A 48 C24 A 49 B25 D 50 B
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2012 PSPM Kedah Fizik 1
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PROGRAM PENINGKATAN PRESTASI AKADEMIK SPM
TAHUN 2012
FIZIK
Kertas 2
PERATURAN PEMARKAHAN
Peraturan pemarkahan ini mengandungi 9 halaman bercetak
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2
SECTION A
MARKNO. MARKING CRITERIASUB TOTAL
1(a) Underline the word correctly 1- transverse
(b) State the factor correctly 1- depth
(c) (i) State the change in the energy correctly 1- decrease
(ii) Name the phenomenon correctly 1 4 - damping
2(a) Name the type of error correctly 1- zero error/systematic error
(b) (i) Give the actual time taken with one decimal place correctly 1- 44.0 s
(ii) Correct expression 1
-2044
Correct answer and correct unit 1- 2.2 s
(c) State the change in period of oscillation correctly 1 5- increase
3(a) (i) State the speed of light changes from water to air correctly 1- Speed of light increases when propagate from water to air
State the refraction of light ray correctly 1- Light ray is refracted away from the normal
State the location of the image of the fish correctly 1 Any two- Image of the fish is located nearer to the water surface
(ii) Draw the one/two rays correctly 1Location of the image correctly 1
(b) Correct substituition 1
depthapparent1.2
33.1 =
Correct answer and correct unit 1 60.90 m
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2012 PSPM KEDAH FIZIK 2
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3
MARKNO. MARKING CRITERIASUB TOTAL
4(a) Name the function correctly 1
- as a rectifier/to rectify the current/to make the current flow in onedirection/to convert a.c. to d.c.
(b) (i) Determine the period correctly 10.02 s
(ii) Correct expression 1
-02.01
Correct answer and correct unit50 Hz // 50 s 1
1
(c) Path of the current correctly 1Q D B X Y C A P
(d) Draw the trace correctly 1Inverted from diagram 4.2
(e) State the component correctly 1 7
- capacitor
5(a) State the physical quantity correctly 1- weight
(b) (i) Compare the pressure correctly 1- Pressure acting at B is higher/vice versaExplain correctly- Pressure increase with depth
1
(ii) Explain the force correctly 1- Force acting on point B is higher/vice versa/Force pressure
(c) (i) Compare the readings correctly
- The reading in Diagram 5.1 is higher than in Diagram 5.2
(ii) Relate the reading of the spring balance and the upthrustcorrectly- The higher the reading of the spring balance, the lower the
upthrust
(iii) Compare the density correctly 1- Density of water is higher/vice versa
(iv) State the relationship between density and upthrust correctly 1- The higher the density, the higher the buoyant force
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4
MARKNO. MARKING CRITERIASUB TOTAL
6(a) Explain the nuclide correctly 1- A nucleus having a specific number of protons and neutrons
(b) Write all the answers correclty with unit 3 marksAny two or three of the answers correct with unit 2 marksAny one of the answers correct 1 mark
236.05259 u, 235.86653 u, 5.030151 u, 5.011273 u 3
(c) (i) State the comparison correctly 1- decreases/less/smaller after the reaction
(ii) State the deduction correctly 1- mass defect (decrease in mass) is converted into energy //
E = mc 2
(d) (i) State the nuclear reaction correctly 1- Nuclear reaction A
(ii) Name the rod correctly 1 8- boron/cadmium
7(a) (i) State the meaning correctly 1- A region where a magnetic force is experienced
(ii) State the reason correctly 1- The cutting of magnetic flux produces a current in the circuit
(b) (i) State the modification correctly 1- replace the slip rings by a split ring // commutatot
(ii) State the component correctly 1- dry cell(s)/battery
(c) Draw the correct resultant field 1
Label the direction of the force correctly 1
(d) (i) State the modification of the coil correctly with reason 2
(ii)
- more turns- To produce a bigger force
State the modification of the magnet correctly with reason- Stronger magnet- Produce a stronger magnetic field
2
10
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5
MARKNO. MARKING CRITERIASUB TOTAL
8(a) (i) State the meaning correctly 1- The ability to do work
Correct answer 2(b) Write all the answers correclty 2 marks
Any one or two answers correct 1 mark
(c) (i) Correct substituition 1(48)(10)(3)
Correct answer and correct unit 11440 J
(ii) State substituition 1
9.51440
Correct answer244 W
1
(d) (i) State the choice correctly with reason 2- A- shortest time taken
(ii) State the correctly with reason 2- C-Time is consistent over a longer period
(e) State the reason correctly- Longest average time/time is not consistent/time increases with
each run
1
12
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SECTION B
MARKNO MARKING CRITERIASUB TOTAL
9(a) State the meaning correctly 1 1- The amount of energy requires to change the temperature of 1 kgof a substance by 1 oC.
(b) (i) State the comparison correctly 1- same
(ii) State the comparison correctly 1- Liquid N is higher / vice versa
(iii) State the comparison correctly 1
(iv)
(v)
- Liquid M is higher / vice versa
State the comparison correctly- Liquid M is faster / higher /vice versa
State the relationship correctlyThe bigger the specific heat capacity, the smaller the rate of increasein temperature
1
1 5
(c) Give the four explanations correctly- high specific heat capacity- high boiling point/not easily volatile / does not evaporate easily- easily available- non corrosive/do not react with metal
1111 4
(d) State the type of material of the outer pot and reason correctly 2- Poor heat conductor- Less heat loss to the surrounding/cooler
State the type of material of the inner pot and reason correctly 2- Poor heat conductor- Heat up slowly
State the space between the inner pot and outer pot correctly 2- Big- Less heat loss
State the power of the heating element and reason correctly 2- Low- Heat up the food slowly/take longer time to heat up the food
State the type of cover of the outer pot and reason correctly- Air tight/transparent
2 10
- Less heat loss/can observe the food inside the slow cooker
20
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7
MARK NO MARKING CRITERIA SUB TOTAL
10(a) (i) State the meaning correctly 1 1- Distance between two consecutive creasts/trough
(ii) State the comparison correctly 1
- Region P longer/vice versaState the comparison correctly 1- Region P higher/vice versaState the comparison correctly 1- Region P is deeper/vice versaState the comparison correctly 1- Region P smaller/vice versaRelate the change of speed with angle of deviation correctly 1 5- The smaller the change in speed, the smaller the angle of
deviation/vice versa
(b) (i)
(ii)
Explain how a region of compression is produced
When the prongs of the tuning fork move outward, it produce aregion of compressionExplain how a region of rarefaction is producedWhen the prongs of the tuning fork move inward, it produce aregion of rarefaction
Describe the set up correctly
1
1
1
2
- Candle flame in front of a loud speaker that emits sound wave
Describe the observation correctly 1 2- Candle flame vibrates forward and backward
(c) (i) State the type of wave and reason correctly 2- Ultrasound- Safer/no side effect to the foetus//
can differentiate between layers of different soft tissues
State the frequency of wave and reason correctly 2- high frequency- can penetrate into mothers womb to scan the foetus / does not
diffract easily
State the amplitude of wave and reason correctly 2- small amplitude or high amplitude
- does not harm the foetus or to produce clearer image
State the use of the layer of gel and reason correctly 2 8- Allow the transducer to move easily on the skin//
Helps the sound waves to transmit into the body- Reduce frictional force//produce better sound contact between
the transducer and the skin
(ii) Give the phenomenon of wave correctly- reflection
1 1
(iii) State the usage correctly- determine the depth of the sea- locate the position of a shoal of fish
1 1
20
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8
SECTION C
MARKNO MARKING CRITERIASUB TOTAL
11 (a) (i) State the meaning correctly 1 1- Reciprocal of the focal length //
f 1
(ii) Correct substitution for power 1
51
// 5
100
State the answer with unit correctly 1 20.2 m // 20 cm
(iii) Correct substitution for the focal lengths 1
520
State the answer correctly 1 2
4
(b) (i) State the correct relationship 1 1- The thicker the lens, the higher the power
(ii) Describe the method correctly 4 4- Place the lens to receive light from a distant object- Adjust the screen to obtain a sharp image- Measure the distance between the lens and the screen, d
- Power =d 1
111
1
(c) State the choice and reason of type of mirror correctly 1+11 concave2 to converge light to the focal pointState the choice and reason of distance between slide and
projector lens correctly 1+1
3 f < u < 2 f 4 to produce real, inverted and magnified imageState the choice and reason of orientation of slide correctly 1 + 15 inverted6 to produce final upright image on the screenState the choice and reason of power of projector lens correctly 1 + 17 high8 to produce bigger / magnified imageState most suitable slide projector and justification correctly 1+1 109 P10 Concave mirror, f < u < 2 f , inverted slide, high power projection
lens20
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9
MARKNO. MARKING CRITERIASUB TOTAL
12(a) State the meaning correctly 1 1- Rate of flow of charge
(b) State the explanation correctly- dry cells have internal resistance - L1 and L 2 are connected in parallel // effective resistance of the
circuit decreases- current supplied by the battery increases // voltage lost in the
battery increases- voltage applied across the bulbs decrease
1
1
11 4
(c) State the suitable type of bulb and reason correctly 1+11 Fluorescent2 Lasts longer // uses less energy // lower power // high
efficiency State the suitable input power and reason correctly 1+13 Low4 Less cost of electricity State the suitable efficiency and reason correctly 1+15 High6 Less wastage of energy // Saves energyState the suitable type of connection and reason correctly 1+17 Parallel8 Lamps can be switched on independently // If one lamp blows,
the others can continue to be lighted up State most suitable choice of radioisotope and justificationcorrectly
1+1 10
9 R10 fluorescent bulb, low input power, high efficiency and parallel
connection
(d) (i) State the reading of the voltmeter correctly 1- 4 V
(ii) Correct substitution for V and R 1
54
Correct answer with unit 10.8 A
(iii) Correct substitution for V and I 1
8.02
Correct answer with unit 1 52.5
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PROGRAM PENINGKATAN PRESTASI AKADEMIK SPM
TAHUN 2012
FIZIK
Kertas 3
PERATURAN PEMARKAHAN
Peraturan pemarkahan ini mengandungi 7 halaman bercetak
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2
SECTION A
MARKNO MARKING CRITERIASUB TOTAL
1(a) (i) State the manipulated variable 1 1- mass / m
(ii) State the responding variable 1 1- increase in temperature /
(iii) State a constant variable 1 1- Initial temperature / o // Heating time // Heat supplied // Specificheat capacity
(b) (i) Record five values of 1
m 1 1
Diagram 1.3 : 5.00
Diagram 1.4 : 3.33Diagram 1.5 : 2.50Diagram 1.6 : 1.67Diagram 1.7 : 1.25
(ii) Record six thermometer readings 1 1Diagram 1.1 : 24 o
Diagram 1.3 : 36 o Diagram 1.4 : 32 o
Diagram 1.5 : 30 o
Diagram 1.6 : 28 o
Diagram 1.7 : 27 o
(iii) Record five values of 2 2Diagram 1.3 : 12 o
Diagram 1.4 : 8 o
Diagram 1.5 : 6 o
Diagram 1.6 : 4 o
Diagram 1.7 : 3 o Note: Any three readings correct, award 1 mark
Accept e.c.f. from (b)(ii)
(c) Tabulate the results
- Heading for m , 1m , and 1
- State all the units of m , 1m , and correctly 1
- The values of 1m are consistent to two decimal places and ,
to whole number1 3
m / kg1m / kg
-1 / oC / oC
0.20 5.00 36 120.30 3.33 32 80.40 2.50 30 60.60 1.67 28 40.68 1.25 27 3
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3(d) Draw a complete graph of against
1 m 5
Tick ( ) based on the following aspects
A Show on vertical-axis and1m on the horizontal-axis
B State the units of the variables correctly C Both axes are marked with uniform scale
D All five points are plotted correctly(Note: If only three points plotted correctly, award )
E Best straight line is drawn F Show the minimum size of graph at least 5 x 4
(2 cm x 2 cm) square(counted from the origin until the furthest point)
Score :Number of Score
7 55-6 43-4 32 21 1
(e) State the correct relationship between and1m 1
is directly proportional to1m
16
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4
MARK NO MARKING CRITERIA SUB TOTAL
2(a) (i) State the relationship between T and x- T decreases linearly with x 1
(ii) State the value of T within the acceptable range- Show graphical extrapolation correctly 1
- State the value within acceptable rangeT = (0.59 0.61) N 1(iii) State the physical quantity correctly
- Weight /W 1 4(b) State the value of x within the acceptable range
- Show graphical intrapolation correctly 1- State the value within acceptable range
x = (0.64 0.68) cm 1 2(c) Calculate the gradient of the graph, k and state the value of k
within the acceptable range- Draw a sufficiently large triangle at least 3 x 3 (2 cm x 2 cm)
square 1- Correct substitution (follow candidates triangle)
Sample answer:
k = -0.6 - 01.0 - 0 1
- State the correct value / answer with correct unit(0.58 - 0.62) N cm -1 Accept negative value for the answer
1 3
(d) Calculate the value of correctly using the given formula- Correct substitution
=0.60
7.2 x 10 -4
Accept e.c.f. for k 1- State the correct answer / value
= 833.3 kg m -3 = (805.6 - 861.1) kg m -3 1 2
(e) State the correct precaution 1 1
- The scale reading of the spring balance is taken when thewooden block stops oscillating
- Place the eyes perpendicularly to the scale of spring balanceand the metre rule
- Repeat the readings and take the average value12
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5
SECTION B
MARK NO MARKING CRITERIA SUB TOTAL
3 (a) State a suitable inference- The pressure of the gas depends on its volume 1 1
(b) State a relevant hypothesis- The smaller the volume, the higher the pressure 1 1
(c) Describe a complete suitable experimental framework(i) State the aim of experiment
To investigate the relationship between the volume of a gas and itspressure 1
(ii) State the manipulated variable and the responding variable
Manipulated variable : VolumeResponding variable : PressureState the constant variableConstant variable : Mass of gas // Temperature
1
1
(iii) List out the important apparatus and materialsSyringe, rubber tube, slotted weights, Bourdon gauge 1
(iv) Draw a functional arrangement of apparatus 1
(v) State the method to control the manipulated variableSlotted weights are placed on the piston of the syringe until thevolume of air in the syringe is 40 cm 3 1
State the method to measure the responding variableThe corresponding reading of the Bourdon gauge is measured 1
Repeat the experiment at least four timesRepeat the previous steps for different volumes of 35 cm 3, 30 cm 3,25 cm 3 and 20 cm 3 1
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6(vi) State how the data is tabulated
Volume / cm -3 Pressure4035302520
1(vii) State how the data is analysed
Plot a graph of pressure against volume. 1 1012
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7/30/2019 Spm Trial 2012 Physics Qa Kedah
89/89
7
MARK NO MARKING CRITERIA SUB TOTAL
4 (a) Able to state a suitable inferenceSample answerThe diameter / thickness of a wire affects the current in the wire // The diameter / thickness of a wire affects the resistance of the wire // The diameter / thickness of the wire affects the brightness of thebulb
1 1
(b) Able to state a suitable hypothesisSample answerThe bigger the diameter of a wire, the bigger the current in the wire 1 1
(c) Able to describe a complete experimental framework
(i)Sample answerState the aim of experimentTo investigate the relationship between the diameter of a wire andthe current in the wire
1
(ii) State the manipulated variable and the responding variableManipulated variable : diameter Responding variable : currentState the constant variableConstant variable : length of wire // material of the wire
1
1
(iii) State the complete list of apparatus and materialsConstantan wires, metre rule, ammeter, battery, connecting wires 1
(iv) Draw a functionable arrangement of the apparatus 1
(v) State the method of controlling the manipulated variableThe circuit was set up with diameter, d = 0.5 mm of constantan wire 1
State the method of measuring the responding variableThe current, I , was measured with an ammeter. 1
Repeat the experiment at least four timesThe procedure was repeated with diameter of, d = 1.0 mm, 1.5 mm, 1
Constantan wireA
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