Force and Energy Quiz

1. Which of the following is NOT a useful effect of frictional force?

• A car slowing down in front of a traffic light.

• A bicycle chain making noises when pedaling.

• A matchstick lighting up after being stroked on a rough surface.

2. Which can give an electric force?

• Rubbing dry objects together.

• Rubbing wet objects together.

• Different sides of magnets touching.

3. Which of the following activities would be helpful to have less friction?

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4. The weight of an object is due to … acting on the object.

• frictional force

• magnetic force

• gravitational force

5. The table shows the braking distances of a car moving at a speed of 15 metres per second. What is the best combination of road condition and type of tyres for stopping the car most quickly?

• Wet road and old tyres.

• Wet road and new tyres.

• Dry road and new tyres.

6. Choose the magnetic materials.

• Plastic and alumunium

• Steel and iron

• Wood and silver

7. Identify the type of energy.

• Heat energy

• Kinetic energy

• Light energy

8. Which of the following types of energy are types of potential energy?

• Elastic and wind.

• Chemical, sound and light.

• Elastic, gravitational and chemical.

9. At a campfire, some marshmallows were heated over a fire. Which two objects have the same form of potential energy?

• Wood and marshmallow.

• Fire and marshmallow.

• Skewer and wood.

10. Which of the following objects has gravitational potential energy?

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