Test Practice for Heat Transfers

Front

What happens to the density of materials when they get warmer?

Back

The density decreases.

Front

How do particles behave when materials are heated?

Back

Particles move faster and get farther apart.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials.

Front

Give an example of conduction.

Back

Touching a hot handle and getting burned.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids and gases).

Front

Give an example of convection.

Back

Boiling water in a pot.

Front

What is radiation in terms of heat transfer?

Back

Radiation is the transfer of heat through electromagnetic waves.

Front

Give an example of radiation.

Back

Grilling hot dogs over a campfire.

Front

What happens to the density of a substance when it cools down?

Back

The density increases.

Front

What is the relationship between temperature and particle movement?

Back

As temperature increases, particle movement increases.