Thermal Energy Review

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of the particles in a substance, which is related to its temperature.

Front

What is conduction?

Back

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

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 sunlight.

Front

What happens to warm air?

Back

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

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state reached when two objects at different temperatures come into contact and heat flows between them until they reach the same temperature.

Front

How does heat transfer occur between two objects?

Back

Heat transfer occurs from the hotter object to the cooler object until thermal equilibrium is reached.

Front

What is an example of conduction?

Back

An example of conduction is a metal spoon getting hot when placed in a pot of hot soup.

Front

What is an example of convection?

Back

An example of convection is the circulation of warm air in a room heated by a radiator.

Front

What is an example of radiation?

Back

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