soalancutiterancangfizikf4topicaltest1paper2.doc

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NAMA: ______________________________________________ TINGKATAN: ______________

TOPICAL TEST 1: INTRODUCTION TO PHYSICS

1 Diagram 1 shows a vernier calipers used to measure external diameter of a water pipe.

Diagram 1

(a) (i) Name the part labelledP.[1 mark]

(ii) What is the function ofP?[1 mark]

(b) (i) Write down the reading, in cm, for the diameter of the water pipe.

[1 mark]

(ii) Why is the external diameter measured at different positions?

[1 mark]

(c) State one advantage of using a callipers compared with using a ruler in millimeters for making this

measurement.

[1 mark]

2

Physics quantities Type of quantity Unit SI

Velocity Density

Momentum Electric charge

Force Table 1

Complete the Table 1 by writing down the type of quantity and the corresponding S.I. units in the spaces

provided.


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[5

marks]

3 Diagram 2.1 shows the meniscus of water in a measuring cylinder. X, YandZare three eye positions while

measuring the volume of the water.

Diagram 2.1

(a) (i) Which positions of the eye is correct while taking the reading of the volume of water?

[1 mark](ii) Give one reason for the answer in (a)(i).

[1 mark]

(b) The water in the measuring cylinder is replaced with 20 cm3 of mercury.

(i) In Diagram 2.2, draw the meniscus of the mercury in the measuring cylinder.

Diagram 2.2

[1 mark]

(ii) Explain what causes the shape of the meniscus of mercury you have drawn in (d)(i).

__________________________________________________________________________

[1 mark]

4

Diagram 3.1 Diagram 3.2


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Diagram 3.1 shows a micrometer screw gauge with a zero error.

Ahmad determines the thickness of a piece of paper using the following method.

50 pieces of the papers are placed between anvil and spindle of the micrometer screw gauge. Thespindle is moved closer to anvil by rotating ratchet until a tick sound is heard and the reading of

micrometer screw gauge is shown in Diagram 3.2.

(a) What is the zero reading of the micrometer screw gauge?[1 mark]

(b) What is the actual thickness of 50 pieces of the papers?

[1 mark]

(c) Calculate the thickness of one piece of the paper.

[1 mark]

(d) While taking measurement, Ahmad is advised to rotate the rachet but not the thimble. Why?[1 mark]

Section B

5 Diagram 4.1 and 4.2 shows a vernier calipers and a micrometer screw gauge used to measure the

diameter of a glass rod.

Diagram 4.1


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Diagram 4.2

(a) (i) What is meant by accuracy of a measurement?

[1 mark / 1 markah]

(ii) With reference to Diagram 4.1 and Diagram 4.2, compare the diameter readings taken and

scales in both measuring instruments. Relate the diameter readings with the scale used to make a

deduction regarding the relation between the sensitivity and accuracy.

[5 marks]

(b) Explain why a zero error affects the accuracy and sensitivity of a measuring instrument.[4 marks]

(c) (i) State two differences between random error and systematic error.

[2 marks]

(d) In an archery competition, a participant aims at the bulls eye of a target. Each participant is allowed to

have five trials. Complete the spaces below to represent the type of shots distribution after the arrows hit

at the target.

(i) A distribution which is accurate and consistent.


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(ii)A distribution which is not accurate and not consistent.

(iii) A distribution which is not accurate but consistent.

(iv)A distribution which is accurate but not consistent.

[8 marks]


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Section A

PAPER 3

1. A student carries out an experiment to determine relative density, R of a liquidP. The apparatus set-up

for this experiment is shown in Diagram 1.1.

Diagram 1.1

The student starts the experiment by placing a total slotted mass of m = 60 g which is attached to one

end of the spring.

The scale reading, h on the half-meter rule is recorded with the aid of the pin. The experiment is

repeated with total mass of 80 g, 100 g, 120 g, 140 g and 160 g. The corresponding scale readings are shown

in Diagrams 1.2, 1.3, 1.4, 1.5, 1.6 and 1.7. Slotted masses with hanger are removed and replaced by an

object, Q attached to the spring. The scale reading, h0 = 15.6 cm is recorded.

(a) For the experiment described, identify:


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(i) The manipulated variable[1 mark]

(ii) The responding variable[1 mark]

(iii) The constant variable[1 mark]

(b) (i) Record the readings, h, of the spring in Diagram 1.2, 1.3, 1.4, 1.5, 1.6 and 1.7.

[2 marks]

(ii) Tabulate your results for all values ofm and h in the space below.

[2 marks]

(c) On the graph paper , plot a graph ofh against m.

[5 mark]

(d) Based on your graph in 1(c), state the relationship between h and m.

[1 mark]

soalancutiterancangfizikf4topicaltest1paper2.doc

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