Electricity Quiz for Grade 3

What is an electrical circuit?

• A collection/pile of electrical equipment

• A path around which electricity travels

• A series of insulators

• A light bulb and a battery only

Why are electrical wires covered with rubber or plastic?

• Plastic and rubber are comfortable materials to touch

• They are smooth and stop wires from tangling

• They can be made in different colours so you can identify wires

• They stop electricity from flowing (insulators) and prevent electrocution

A material that allows electricity to flow through it easily is called...

• A conductor

• An insulator

• A connector

• A cell

Besides batteries, what is another source of electricity?

• Mains

• A motor

• A light bulb

• Petrol

Which of these materials would NOT be a good conductor of electricity?

• Copper

• Wood

• Steel

• Iron

Why might a circuit fail to work?

• It might have a dead battery

• The bulb might be broken

• There is a break in a wire

• All of the above

What will a circuit with an open switch do?

• It will not allow electricity to pass through it

• It will allow electricity to pass through it

• It will resist electricity

• The bulb will light

Which of the following helps keep us safe around electricity?

• Do not overload a plug socket

• Keep electricity and water away from each other

• Make sure wires are in good condition

• All of the above

Which of these could be used to complete a circuit?

• A rubber

• A piece of gravel

• A paper clip

• A wooden ruler

Which of the following work using batteries?

• Toaster

• TV

• Kettle

• Torch