Electrical and Heat Energy

Front

The molecules in the air are ________ when the temperature is hot.

Back

moving fast and are spread apart

Front

What type of material allows heat to pass through it easily?

Back

Metals

Front

Which of the following is a good conductor of electricity?

Back

Copper

Front

An object through which electrons can easily flow is called a(n) ___________.

Back

Conductor

Front

What is the flow of electric charge called?

Back

electric current

Front

What is an insulator?

Back

A material that does not allow electricity or heat to flow through it easily.

Front

What is the difference between a conductor and an insulator?

Back

A conductor allows electricity to flow easily, while an insulator does not.

Front

What happens to the movement of molecules in a solid when it is heated?

Back

The molecules move faster and may eventually change to a liquid state.

Front

What is thermal energy?

Back

The energy that comes from the temperature of matter; it is the total energy of all the particles in an object.

Front

What is the relationship between temperature and the movement of particles?

Back

As temperature increases, the movement of particles increases.