Chapter 7 Energy Review

Front

What is a conductor?

Back

A material that allows electricity or heat to flow through it easily. Example: Metal like copper.

Front

What is an insulator?

Back

A material that does not allow electricity or heat to flow through it easily. Example: Plastic or wood.

Front

How does heat move?

Back

Heat moves from warm places to cooler places.

Front

What is potential energy?

Back

Energy that is stored in an object due to its position or state. Example: A drawn bow.

Front

What is kinetic energy?

Back

Energy that an object has due to its motion. Example: A rolling ball.

Front

What is sound energy?

Back

Energy caused by vibrations in the air that we can hear.

Front

What is thermal energy?

Back

Energy that comes from the temperature of matter. The hotter the substance, the more thermal energy it has.

Front

What is mechanical energy?

Back

The sum of potential and kinetic energy in an object that is used to do work.

Front

What is an example of a good conductor?

Back

Copper, which is often used in electrical wiring.

Front

What is an example of a good insulator?

Back

Rubber, which is used to cover electrical wires.