1. PAPER 3
SECTION A
BY PN. TAN SHIM YU

2. FORMAT :PAPER 3 SECTION QUESTION FULL MARKS ELEMENT EVALUATED A 1 16
SCIENCE PROCESS SKILLS & ANALYTICAL SKILLS 2 12
MAKING EVALUATION AND INTERPRETATION OF GRAPH B 3
CRITICAL THINKING AND SKILLS OF MAKING RELATIONSHIP
(USUALLY FORM 4 TOPIC) 4
TOTAL 40
BY PN. TAN SHIM YU

3. BY PN. TAN SHIM YU

4. BY PN. TAN SHIM YU

5. 50.0
42.2
5.0
4.22
25.00
17.81
(2 d.p.)
56.1
5.61
31.47
BY PN. TAN SHIM YU

6. 61.3
66.2
6.13
6.62
37.58
43.82
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7. Acceptable graph A B C D
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8. Mass of the pendulum bob
Length of the pendulum
Period of oscillation
Mass of the pendulum bob
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9. BY PN. TAN SHIM YU

10. length of pendulum, l (cm) time for 10 oscillations, t (s)
period of oscillations, T (s)
T2 (s2)
30.0
42.4
4.24
17.98
40.0 50 5 25
50.0
56.2
5.62
31.58
60.0
61.6
6.16
37.58
70.0
66.4
6.64
44.09 .0
.00
.00
BY PN. TAN SHIM YU

11. BY PN. TAN SHIM YU

12. Unacceptable graph
more than 1 cm A B C D
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13. Unacceptable graph Rejected graph Rejected graph Rejected graph A B C
more than 0.5 cm
Unacceptable graph
Rejected graph
Rejected graph
Rejected graph A B C D
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14. BY PN. TAN SHIM YU

15. Square of period increases linearly with the length of the pendulum. OR
T2 increases linearly with l.
BY PN. TAN SHIM YU

16.   Relationship between variables a
A) a is inversely proportional to b 
B) a is directly proportional to b
C) a increases linearly with b a b
A) a is inversely proportional to b
B) a is directly proportional to b 
C) a increases linearly with b
BY PN. TAN SHIM YU

17.    Relationship between variables a
A) a is inversely proportional to b
B) a is directly proportional to b 
C) a increases linearly with b a
1/b 
A) a is inversely proportional to b 
B) a is directly proportional to 1/b
C) a increases linearly with 1/b
BY PN. TAN SHIM YU

18.  Relationship between variables a increases with b a
A) a is inversely proportional to b
B) a is directly proportional to b
C) a is linearly increasing with b
a increases with b b a 
A) a is inversely proportional to 1/b
B) a is directly proportional to 1/b
C) a is linearly increasing with 1/b
1/b
BY PN. TAN SHIM YU

19. Question 2
Acceleration of the trolley is directly proportional to height of the inclined plane
BY PN. TAN SHIM YU

20.  line  extrapolation    values/coordinates  with unit
1.5ms-2 
(1.25-0) ms-2
0.25 m
= 5.00 s-2
 values/coordinates
 with unit
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21. (b)
(c)
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22. * statement without how is not accepted
1) Ensure the trolley moves down the incline without knocking the sides so that motion is not blocked.
2) Ensure the tape runs freely through the ticker timer without being impeded
3) Reduce the friction in the wheels by using oil so that the trolley can move smoothly
4) Repeat the expt so that a mean reading can be calculated to increase accuracy
5) When measuring height make sure the eyes is perpendicular to the ruler to avoid parallax error.
* statement without how is not accepted
e.g. Make sure runway is smooth
BY PN. TAN SHIM YU

23. Temperature, Ө (oC) Length, l (cm)
Question 3
(i) Temperature
(ii) Length of the air column
(iii) Pressure of the trapped air/ diameter of the capillary tube
(b) (i) The eye must be at a position which is level with the top section of
the meniscus of the air column
(c)
Temperature, Ө (oC)
Length, l (cm)
7.1 20
7.6 30
7.9 40
8.1 50
8.4 60
8.7 70
9.0
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24. l increases linearly with Ө
The capillary tube and ruler must be parallel/
The trapped air column must be fully immersed in water.
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25. Possible Precautions that can be taken:
 Possible Precautions that can be taken:
Measuring Instrument
a. Avoid parallax error by placing the eye such that the line of view
is perpendicular to the scale read. (for
ammeter/voltmeter/measuring cylinder etc)
b. Take into account zero error of instrument. (for
calipper/micrometer/weight scale etc.)
Spring/Hooke’s Law   
a. make sure the spring is not loaded beyond the elastic limit.
(spring return to original length when load is taken off).
b. Avoid parallax error by placing the eye such that the line of
view is perpendicular to the scale of the ruler.
Heat
 a. Liquid must be stirred constantly so that temperature rises
evenly.
b. Alluminium block must be wrapped with insulating material to
prevent heat lost.
c. Thermometer bulb should be smeared with oil to give better
thermal contact with the block.
d. Avoid parallax error by placing the eye such that the line of
view is perpendicular to the scale of the thermometer.
BY PN. TAN SHIM YU