Heat Transfer: Conduction, Convection, Radiation

Front

What is heat transfer?

Back

Heat transfer is the movement of thermal energy from one object or substance to another due to a temperature difference.

Front

What are the three main types of heat transfer?

Back

Conduction, Convection, and Radiation.

Front

Define conduction.

Back

Conduction is the transfer of heat through direct contact of molecules or particles.

Front

Give an example of conduction.

Back

A metal spoon getting hot when placed in a pot of boiling water.

Front

Define convection.

Back

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

Front

Give an example of convection.

Back

Boiling water where hot water rises and cooler water sinks.

Front

Define radiation.

Back

Radiation is the transfer of heat in the form of electromagnetic waves, which can occur in a vacuum.

Front

Give an example of radiation.

Back

The warmth felt from the sun on your skin.

Front

How does heat transfer occur in a fireplace?

Back

Heat is transferred from the fire to the surrounding air and objects through radiation.

Front

What happens to the temperature of a substance when it absorbs heat?

Back

The temperature of the substance increases.