ELECTRICAL CONDUCTORS AND INSULATORS

A material that lets electricity pass through it is called ...

• an electrical conductor

• an electrical insulator

• an electrical appliance

A material that does NOT let electricity pass through it is called ...

• an electrical conductor

• an electrical insulator

• an electrical appliance

Which of the following materials is an electrical conductor?

• Silver

• Wood

• Plastic

Which of the following materials is an electrical insulator?

• iron

• gold

• rubber

Why is electrical wiring usually covered with a layer of plastic?

• To make it look pretty

• To help electricity flow along the wire

• To make it safe

Tags

NGSS.MS-PS3-3

What type of materials allow electricity to flow freely?

• Conductors

• Insulators

• Voltages

• Inductors

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

• Insulators

• Conductors

• Voltages

• Currents

Why are electrical insulators important?

• They help the flow of electricity

• They provide power for electric circuits

• They are used to protect us from electricity

• They help conduct heat

Which of the following is a good insulator?

• Paper

• Glass

• Air

• all of the above

• none of the above