Electricity Quiz: Conductors and Insulators

What is a conductor?

• A type of insulator

• A type of heat conductor

• A type of musical director

• A material that allows the flow of electric current

Give an example of a good conductor of electricity.

• Wood

• Copper

• Rubber

• Plastic

What is an insulator?

• A material that easily allows the flow of electric current

• Something used to keep beverages cold

• A type of musical instrument

• A material that does not easily allow the flow of electric current.

Provide an example of a good insulator of electricity.

• Glass

• Metal

• Wood

• Rubber

Why are metals good conductors of electricity?

• Metals have insulating properties

• Metals have positive charge that attracts electrons

• Metals have no electrons

• Metals have free electrons that can move easily through the material.

Why are rubber and plastic good insulators of electricity?

• High resistance to the flow of electric current

• They are good conductors of electricity

• They attract electric current

• Low resistance to the flow of electric current

What happens when electricity passes through a conductor?

• Electric current is created

• The conductor becomes insulating

• The conductor becomes magnetic

• The conductor becomes transparent

What happens when electricity passes through an insulator?

• It attracts more electricity

• It does not conduct electricity

• It generates heat

• It amplifies the electricity

How does the conductivity of a material affect its use in electrical wiring?

• Materials with high conductivity are not suitable for electrical wiring.

• Conductivity of a material has no effect on its use in electrical wiring.

• Materials with high conductivity are preferred for electrical wiring.

• Materials with low conductivity are preferred for electrical wiring.

Explain why it is important to use insulators in electrical appliances.

• To make the appliances more expensive

• To make the appliances heavier

• To prevent electric shocks and ensure user safety.

• To increase the risk of electric shocks