PAPER 3 (SECTION B)

Diagram 3.1 shows a cradle with a baby in it is oscillating vertically. Diagram 3.2 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 slower frequency.

Diagram 3.1 Diagram 3.2

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 3(b).In your description, state clearly the following:(i) 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]

PAPER 2 (SECTION B)

1 The diagram below shows the condition of a car after an accident. The injuries of the driver and the passengers depend on the impulsive force produced during accident.

(a) Explain the design of safety features for cars based on the impulsive force principle.

[10 marks]

PAPER 2 (SECTION C)

1 You are representing the school to bring a group of 35 students for a competition in Kedah. Table 1 shows the characteristics of four types of school bus.

Model Passenger compartment

made of

Crumple zones

Windscreen made of

Front shape

P Steel Back and front Laminated glass NarrowQ Iron Back Thick glass wideR Steel Front Laminated glass WideS Iron Back and front Thick glass Narrow

Table 1

Based on Table 1,(i) Explain the suitable characteristics of the school bus so that it

helps to improve the safety and the comfort of the students(ii) Determine which model of school bus is most suitable to be

chosen. Explain your choice. [10 marks]

PAPER 3 (SECTION B)

Diagram 3.1 shows a cradle with a baby in it is oscillating vertically. Diagram 3.2 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 slower frequency.

Diagram 3.1 Diagram 3.2

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

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

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

apparatus, describe an experiment framework to test the hypothesis stated in 3(b).In your description, state clearly the following:(i) 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]

PAPER 2 (SECTION B)

2 The diagram below shows the condition of a car after an accident. The injuries of the driver and the passengers depend on the impulsive force produced during accident.

(a) Explain the design of safety features for cars based on the impulsive force principle.

[10 marks]

PAPER 2 (SECTION C)

1 You are representing the school to bring a group of 35 students for a competition in Kedah. Table 1 shows the characteristics of four types of school bus.

Model Passenger compartment

made of

Crumple zones

Windscreen made of

Front shape

P Steel Back and front Laminated glass NarrowQ Iron Back Thick glass wideR Steel Front Laminated glass WideS Iron Back and front Thick glass Narrow

Table 1

Based on Table 1,(i) Explain the suitable characteristics of the school bus so that it

helps to improve the safety and the comfort of the students(ii) Determine which model of school bus is most suitable to be

chosen. Explain your choice. [10 marks]