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, where heat moves from the hotter object to the cooler one.

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

Define radiation.

Back

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

Front

What is an insulator?

Back

An insulator is a material that does not conduct heat well, preventing heat transfer.

Front

What is a conductor?

Back

A conductor is a material that allows heat to pass through it easily.

Front

Give an example of conduction in everyday life.

Back

Touching a hot stove and burning your hand is an example of conduction.

Front

Give an example of convection in everyday life.

Back

Warm air rising and cool air sinking in a room is an example of convection.

Front

Give an example of radiation in everyday life.

Back

Feeling warmth from the sun on your skin is an example of radiation.