Section A[28 marks]

Answer all questionsThe time suggested to complete this section is 60 minutes

1 A student carries out an experiment to find out the relationship between the changes in length, y of a spring and mass, m of the load on the spring. The arrangement of the apparatus for the experiment is shown in Diagram 1. The length of the spring when a load is placed on the piston is l.

Diagram 1

At the beginning of the experiment there is no load. The length of the spring is . The actual length of

is shown in Diagram 2 on page 3.

The experiment is repeated by using loads with mass, m, equal to 0.5 kg, 1.0 kg, 1.5 kg, 2.0 kg and 2.5 kg. The actual lengths of the spring when the different masses are used are shown in Diagram 3, Diagram 4, Diagram 5, Diagram 6 and Diagram 7 on page 3.

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(a) Based on the aim and the procedure of the experiment state the :(i) manipulated variable

____________________________________________________________________

[1 mark](ii) responding variable

____________________________________________________________________

[1 mark](iii) constant variable

____________________________________________________________________

[1 mark]

(b) (i) Based on Diagram 2, measure the length, of the spring when no load is used.

= _____________________[1 mark]

(ii) Measure the lengths l of the spring in Diagram 3 , Diagram 4 , Diagram 5, Diagram 6 and Diagram 7 when different loads are used.

In each case, calculate the change in length, y of the spring where:

Tabulate your results for m, l and y in the space below.

[6 marks]

(c) On the graph paper, plot a graph of y against m.[5 marks]

(d) Based on your graph, state the relationship between y and m.

___________________________________________________________________________

[1 mark]

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2 The graph of against below shows the result of an experiment to determine the relationship between force and acceleration of a moving object along a rough surface.

(a) Based on the graph above,(i) Determine the value of force, when m s-2. Show how you obtain the value of

on the graph.

____________________________________________________________________

[2 marks](ii) Name a physics quantity that is represented by a(i).

____________________________________________________________________

[1 mark]

(b) (i) Determine the gradient of the graph.

[3 marks](ii) Name the physics quantity represented by the gradient in b(i).

____________________________________________________________________

[1 mark]

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(c) From the graph, state the value of N. Show how you obtain the value of from the graph.___________________________________________________________________________

[2 marks]

(d) Based on the graph, write an equation that relates force, and acceleration, .

[2 marks]

(e) State one precaution that should be taken in this experiment.

___________________________________________________________________________

[1 mark]

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Section B[12 marks]

Answer all questions in this sectionThe time suggested to complete this section is 30 minutes

1 Diagram (a) shows a cradle with a baby in it is oscillating vertically. Diagram (b) shows another identical cradle with a heavier baby in it is oscillating vertically. It is observed that the cradle with a heavier mass baby oscillates at a smaller frequency

Based on the above information and observation, (a) state one suitable inference.

[1 mark](b) state one suitable hypothesis.

[1 mark](c) With the use of apparatus such as spring, slotted weight and other apparatus, describe an

experiment framework to test the hypothesis stated in 1(b).In your description, state clearly the following:(i) The aim of the experiment.(ii) Variables of the experiment.(iii) List of the apparatus and materials.(iv) Arrangement of the apparatus.(v) The procedures of the experiment which include the method of controlling the

manipulated variable and measuring the responding variable.(vi) The way you would tabulate the data.(vii) The way you would analyze the data.

[10 marks]

END OF QUESTION PAPER

Tanda tangan

Disediakan oleh Disemak oleh Disahkan oleh

Nama Farzana A Rahman Pramindra Devi Lauyah Mahwi

Jawatan Guru Fizik Ketua Panitia FizikGuru Kanan Sains &

Matematik

Tarikh

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Diagram (a) Diagram (b)