Conductors and Insulators

Front

What is a conductor?

Back

A conductor is a material that allows electricity or heat to flow through it easily.

Front

What is an insulator?

Back

An insulator is a material that does not allow electricity or heat to flow through it easily.

Front

Why is a bulb brighter when powered by two batteries?

Back

Because the flow of electricity in the circuit is greater.

Front

True or False: A conductor allows energy to easily pass by.

Back

True.

Front

Which of the following is an electrical conductor? silver, plastic, cork, rubber?

Back

Silver.

Front

What are some common examples of conductors?

Back

Copper, aluminum, gold, and silver are common conductors.

Front

What are some common examples of insulators?

Back

Rubber, glass, wood, and plastic are common insulators.

Front

Why are metals useful for making electrical wires?

Back

Because metals are conductors.

Front

True or False: An insulator allows heat to escape from an object quickly.

Back

False.

Front

What happens to the flow of electricity in a circuit with a good conductor?

Back

The flow of electricity is strong and efficient.