Thermal Energy Transfer- Unit Assessment

Front

What is thermal energy transfer?

Back

The process of heat moving from one object or substance to another due to a temperature difference.

Front

What are the three methods of thermal energy transfer?

Back

Conduction, convection, and radiation.

Front

Define conduction.

Back

The transfer of heat through direct contact between materials.

Front

Define convection.

Back

The transfer of heat through the movement of fluids (liquids or gases) caused by differences in temperature and density.

Front

Define radiation.

Back

The transfer of heat in the form of electromagnetic waves, such as sunlight.

Front

What is thermal equilibrium?

Back

A state in which two objects in contact reach the same temperature and no heat flows between them.

Front

Why does metal feel colder than wood on a cold day?

Back

Metal conducts heat away from the body faster than wood, making it feel colder.

Front

Give an example of heat transfer by radiation.

Back

Feeling the warmth of the sun on your face.

Front

What happens to a hot cup of tea as it cools down?

Back

It transfers heat to the surrounding air until it reaches thermal equilibrium.

Front

What is an insulator?

Back

A material that does not conduct heat well, slowing down heat transfer.