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

Conduction, convection, and radiation.

Front

Define conduction.

Back

Conduction is the transfer of heat through direct contact between materials, typically occurring in solids.

Front

What is convection?

Back

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

Front

Explain radiation in terms of heat transfer.

Back

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

Front

Give an example of conduction.

Back

Walking on warm sand with bare feet.

Front

Give an example of convection.

Back

Hot air moving up.

Front

Give an example of radiation.

Back

A group of friends gathering around a fire to stay warm.

Front

In which state of matter does conduction primarily occur?

Back

Solids.

Front

What happens to air when it is heated?

Back

It becomes less dense and rises, creating convection currents.