Conduction, Convection, Radiation

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs when two objects at different temperatures touch each other.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). Warm fluid rises while cooler fluid sinks, creating a circulation pattern.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, which can occur through empty space. An example is the heat from the sun reaching the Earth.

Front

In which direction does heat transfer?

Back

Heat transfers from hot to cold.

Front

What happens to cold air?

Back

Cold air falls because it is denser than warm air.

Front

What is an example of conduction?

Back

An example of conduction is holding a metal spoon in a hot pot; the heat from the pot transfers to the spoon.

Front

What is an example of convection?

Back

An example of convection is boiling water; the hot water rises to the top while cooler water sinks.

Front

What is an example of radiation?

Back

An example of radiation is feeling the warmth of a campfire from a distance.

Front

What is the Law of Conservation of Energy?

Back

The Law of Conservation of Energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is thermal equilibrium?

Back

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