# Test Papers

## Topical MCQ Worksheet #1

Topical MCQ Worksheet - Primary 6 Science - Forces - General

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1.
ID 614

The diagram below shows a rubber tyre.

Why are there deep treads on the tyre?

This is because the deep treads _____________________.

1. increase the stopping distance of the car

2. reduce the amount of material used

3. enable the tyre to move smoothly

4. increase friction

### Short Answer

D.

2.
ID 383

Which of the statements is/are correct?

A Smaller objects are always lighter.

B Gravity affects the weight of an object.

C The effect of weight cannot be felt but can be seen.

D The weight of an object depends on its mass only.

1. A and B only
2. B only
3. C and D only
4. B, C and D only

### Short Answer

B.

3.
ID 384

Which of the following spring balances will show the highest reading?

1. 1
2. 2
3. 3
4. 4

### Short Answer

D.

4.
ID 470

A spring balance was used to pull a block of wood as shown in the diagrams above. In which of the diagrams was the greatest force used?

1. A
2. B
3. C
4. D

### Short Answer

D.

5.
ID 474

Holly used a catapult to shoot some seeds against a tree. The catapult is shown below. What should she do if she wants to increase the force of her shots?

1. She should use less effort to pull the elastic band.
2. She should use more effort to pull the elastic band.
3. She should extend the length of the wooden handle.
4. She should shorten the length of the wooden handle.

### Short Answer

B.

6.
ID 476

Marcus throws a ball upwards. It reaches a maximum height then falls to the ground.

Which of the following statements about the moving ball is true?

1. Gravity acts on the ball throughout.
2. When the ball reaches its maximum height, there is no force acting on it.
3. When the ball reaches its maximum height, gravity begins to act on it.

4. The speed of the ball is constant throughout.

### Short Answer

A.

7.
ID 481

Which one of the following is not a force?

1. Mass
2. Friction
3. Gravity
4. Weight

### Short Answer

A.

8.
ID 483
When a force is applied to a stationary object, several effects are possible. Which one of the following effects is not possible?
1. The object moves.
2. The object rotates.
3. The object remains unmoved.
4. The mass of the object decreases.

### Short Answer

D.

9.
ID 486

A boy lifted a 10g mass vertically from a table by means of a spring as shown in the diagram below. Then he measured the length of the spring. Different loads were used and the corresponding lengths of the spring were measured.

The results were then plotted on a graph as shown below.

Which one of the following does the point marked X on the graph show?

1. The length of the spring when the 10g mass was placed on the spring.
2. The increase in the length of the spring when the 10g mass was placed on the spring.
3. The length of the spring when the 10g mass was removed from the spring and nothing was placed on the spring.
4. The decrease in the length of the spring when the 10g mass was removed from the spring.

### Short Answer

C.

10.
ID 504

The diagrams show a block of wood resting on a glass surface. Two equal forces (F) act on the wood. In which diagram will the wood definitely move?

### Short Answer

D.

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