Heat Transfer

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

The three main types of heat transfer are conduction, convection, and radiation.

Front

Define conduction.

Back

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

Front

Give an example of conduction.

Back

An example of conduction is when a metal spoon gets hot after being placed in a hot bowl of soup.

Front

Define convection.

Back

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

Front

Give an example of convection.

Back

An example of convection is warm air rising to the ceiling of a room.

Front

Define radiation.

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as light.

Front

Give an example of radiation.

Back

An example of radiation is feeling warmth from the sun or a lamp.

Front

What happens to warm air in a room?

Back

Warm air rises because it is less dense than cooler air.

Front

What is thermal equilibrium?

Back

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