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- 1. Multiple Choice
What makes up an electric circuit?
Bulb and battery
Bulb, battery and switch
Bulb, battery and wire
- 2. Multiple Choice
Why is a battery important in an electrical circuit?
As a source of energy.
As a path for electricity to flow through.
As a connector to connect all parts of a circuit.
- 3. Multiple Choice
Why must parts of a circuit be properly connected before the bulb can light up?
To ensure that the bulb can light up.
To ensure that the battery can produce light in a closed circuit.
To ensure that electric current can flow through the closed circuit.
- 4. Multiple Choice
Look at the diagram. Why did the bulb not light up?
The bulb was fused.
The battery had not enough electric current to light up the bulb.
The switch was opened and prevented electric current from flowing through the circuit.
- 5. Multiple Choice
The diagram shows a complete circuit but the bulb did not light up. Why?
The plastic spoon is an insulator of electricity and prevented electric current from flowing through the circuit.
The plastic spoon is not connected properly and prevented electric current from flowing through the circuit.
The plastic spoon is a conductor of electricity and prevented electric current from flowing through the circuit.
- 6. Multiple Choice
Look at the diagram. When the switch is closed, the iron nail attracted the steel clips. Why?
The iron nail produced electric current to attract the steel clips.
The iron nail became a magnet and attracted the steel clips.
The iron nail is a conductor of electric current in the circuit.
- 7. Multiple Choice
Look at the circuits in the diagram. In which circuit will the bulb be brighter?
Circuit A
Circuit B
Both circuits, the bulbs will have the same brightness.
- 8. Multiple Choice
Look at the circuits in the diagram. In which circuit will the bulb be brighter?
Circuit C
Circuit D
Both circuits, the bulbs will have the same brightness.
- 9. Multiple Choice
Look at the circuits in the diagram. In which circuit will the bulb be brighter?
Circuit A
Circuit B
Both circuits, the bulbs will have the same brightness.
- 10. Multiple Choice
State one advantage of bulbs arranged in parallel arrangement in a circuit.
When one bulb fused the other can still light up.
Reduce the amount of electric current used for both bulbs.
Both bulbs in a parallel arrangement in circuit will share the electric current produced by the battery.
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