Heat transfer

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. For example, when you touch a hot stove, heat moves from the stove to your hand.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). For example, when you boil water, the hot water rises and the cooler water sinks.

Front

What is radiation?

Back

Radiation is the transfer of heat through electromagnetic waves. For example, the heat from the sun reaches the Earth through radiation.

Front

What happens to particles when they are heated?

Back

As particles are exposed to warmer temperatures, they speed up and move more quickly.

Front

What is an example of conduction?

Back

An example of conduction is when a metal spoon gets hot after being placed in a pot of hot soup.

Front

What is an example of convection?

Back

An example of convection is when you are making soup and the water is rising and lowering as it heats up.

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 insulation?

Back

Insulation is a material that reduces the transfer of heat. For example, a thermos keeps drinks hot or cold by using insulation.

Front

How does heat move from hot to cold?

Back

Heat naturally moves from areas of higher temperature to areas of lower temperature until they are equal.

Front

What is the role of air in convection?

Back

Air can carry heat away from hot objects, like when a hair dryer blows warm air to dry your hair.