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Adding another battery will make a bulb brighter in a circuit.

# Circuits and Switches

This Science quiz is called 'Circuits and Switches' and it has been written by teachers to help you if you are studying the subject at elementary school. Playing educational quizzes is an enjoyable way to learn if you are in the 3rd, 4th or 5th grade - aged 8 to 11.

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Electrical products work by using circuits and switches. Circuits allow electricity to flow through - and so power - bulbs, motors and buzzers. Switches are used to control circuits. They can break a circuit - and so switch bulbs, motors and buzzers off - or complete a circuit - and so switch them on again. Many products work by using electricity. How many items in your house work by using electricity? Probably more than you think. Count them and see.

1.
How can you make a bulb brighter in a circuit?
Remove the battery
Use a bigger bulb
The more power, the brighter the bulb
2.
What is the purpose of a switch in an electrical circuit?
To turn the power on and off
To turn the power on
To turn the power off
To complete the circuit
Switches can turn power on and off. Think of the light switches at home
3.
The casing for most electrical products should be made of what?
Insulating material
Conducting material
Metal
Paper
Electricity does not pass through an insulating material such as rubber, therefore when you touch the product you do not hurt yourself
4.
What must a circuit be joined with?
Wires
Metal
Batteries
String
Electrical wires have metal inside them. Most circuits use wires but any metal will do
5.
How does a switch turn a bulb off?
By breaking the circuit
By completing the circuit
By removing the bulb
By removing the battery
When a switch is turned off the circuit is broken so electricity cannot flow through and the bulb gets no power
6.
Which of these is NOT a type of switch?
Tilt
Slope
Slide
Press
Can you think of any other types of switches?
7.
What is the source of power in a circuit?
Bulb
Switch
Buzzer
Battery
Batteries can store energy and release it as electricity
8.
How does a switch turn a buzzer on?
By breaking the circuit
By completing the circuit
By removing the bulb
By removing the battery
When a switch is turned on the circuit is complete so electricity can flow through and the buzzer gets some power
9.
What is the source of light in a circuit?
Bulb
Switch
Buzzer
Battery
Electricity passes through a bulb and causes it to glow
10.
Which component in a circuit causes something to turn?
Bulb
Wire
Buzzer
Motor
Motors are found inside remote control cars for example
Author:  Amanda Swift