Conductors and Insulators

What is an electric conductor?

• Any material that allows electricity to pass through it

• It is a switch

• Any material that doesn't allow electricity to pass through it

• It is the flow of electric particles in wire

What is an electric insulator?

• Any material that allows electricity to pass through it

• It is a switch

• Any material that doesn't allow electricity to pass through it

• It is the flow of electric particles in wire

Which one of these is an electric conductor?

• rubber

• plastic

• gold

• glass

Which one of these is an insulator

• steel

• iron

• copper

• oil

All metals are electric conductors.

• True

• False

Water can conduct electricity.

• True

• False

Which material is NOT a conductor?

• iron

• aluminium

• cloth

• steel

Which of these materials is NOT an insulator?

• a metal

• glass

• paper

• wool

If a bulb is connected to a battery by a wire and a gap is made in the wire, to let electricity flow again we should use ............ to close the gap.

• a plastic pin

• a paper clip

• an eraser

• a piece of cloth

Electric wires are made of ...........

• copper

• plastic

• rubber

• iron