Conductors and insulators

What type of materials allow electricity to flow freely?

• Insulators

• Currents

• Conductors

• Inductors

• Voltages

What type of materials are resistant to the flow of electricity?

• Insulators

• Currents

• Conductors

• Inductors

• Voltages

Which of the following is the most conductive element?

• Silicon

• Iron

• Carbon

• Hydrogen

• Silver

Which of the following is a good insulator?

• Paper

• Glass

• Air

• All of the above

• None of the Above

Which of the following is an example of an insulator?

• wooden block

• nail

• penny

• paper clip

Why are electric wires coated in plastic or rubber?

• to keep you from getting electrocuted

• for decoration

• it is cheaper

• to prevent you from freezing

Which of these is not an electrical conductor?

• Gold

• Copper

• Aluminium

• Rubber

A material which is an electrical conductor does what?

• It does not allow electricity to pass through it easily

• It does not allow heat to travel through it easily

• It allows heat to travel through it easily

• It allows electricity to pass through it easily

Why are insulators important in an electrical circuit?

• Electricity will only flow through insulators

• They make the circuit safe to touch

• Light bulbs and buzzers are only made of insulating materials

• All of the above

In a complete electrical circuit, which materials does electricity flow through?

• Electrical insulators

• Electrical conductors

• Only leads or wires

• Only batteries