Conduction, Convection, Radiation

Front

What is thermal energy transfer?

Back

Thermal energy transfer is the process of heat moving from a warmer substance to a cooler substance until they reach the same temperature, known as thermal equilibrium.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state reached when two substances at different temperatures come into contact and exchange heat until they are at the same temperature.

Front

How does heat transfer occur between a hot object and a cold object?

Back

Heat transfers from the hot object to the cold object until both reach the same temperature.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials, where heat moves from the hotter part to the cooler part.

Front

Give an example of conduction.

Back

An example of conduction is when a hot metal ball is placed on ice, transferring heat from the ball to the ice.

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

Give an example of convection.

Back

An example of convection is the way warm air rises and cool air sinks, creating a circulation pattern in a room.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as infrared radiation, without the need for a medium.

Front

Give an example of radiation.

Back

An example of radiation is feeling warmth from the sun on your skin, even though the air around you may be cool.

Front

What happens when a hot object is placed in contact with a cold object?

Back

The hot object transfers heat to the cold object until both objects reach thermal equilibrium.