Heat Transfer: Conduction, Convection, Radiation

Front

What is conduction?

Back

Conduction is the type of heat transfer that occurs through direct contact of molecules or particles with each other.

Front

What is convection?

Back

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

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as light, and does not require a medium to travel.

Front

In heat transfer, from where does heat flow?

Back

Heat always flows from a hotter substance to a colder substance.

Front

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

Back

The temperature of the substance increases as it absorbs heat.

Front

What is an example of conduction?

Back

An example of conduction is when a metal spoon gets hot after being stirred in hot coffee.

Front

What is an example of convection?

Back

An example of convection is the warm air rising and cool air sinking in a room, creating a circulation of air.

Front

What is an example of radiation?

Back

An example of radiation is feeling the warmth of the sun on your skin.

Front

How does heat transfer in a microwave?

Back

In a microwave, heat is primarily transferred through radiation.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two substances in contact with each other reach the same temperature and no heat flows between them.