Thermal Energy Practice Test

Front

What happens to molecules when they are heated?

Back

They speed up and move farther apart.

Front

What type of heat transfer occurs when a metal spoon is placed in a hot bowl of soup?

Back

Conduction.

Front

Why do metal objects feel colder than wooden objects at the same temperature?

Back

Metal is a better conductor, so it transfers heat away from your skin faster.

Front

What is the best example of convection?

Back

Warm air rising and cool air sinking inside a room.

Front

How does thermal energy transfer when an ice cube is placed in a cup of warm water?

Back

Heat moves from the warm water into the ice cube.

Front

What is conduction?

Back

The transfer of heat through direct contact between materials.

Front

What is convection?

Back

The transfer of heat through the movement of fluids (liquids or gases).

Front

What is radiation?

Back

The transfer of heat through electromagnetic waves, such as sunlight.

Front

What is a conductor?

Back

A material that allows heat to pass through it easily.

Front

What is an insulator?

Back

A material that does not allow heat to pass through it easily.