6.PS3.4 Heat Transfer

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 cold fluid sinks, creating a circulation pattern.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves. It does not require a medium, so heat can be transferred through empty space.

Front

What is necessary for conduction to occur?

Back

The objects must be in direct contact with one another.

Front

Give an example of conduction.

Back

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

Front

Give an example of convection.

Back

An example of convection is warm air rising from a heater and circulating around a room.

Front

Give an example of radiation.

Back

An example of radiation is the Sun warming the Earth.

Front

What happens to warm air in convection?

Back

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

Front

What happens to cold air in convection?

Back

Cold air sinks because it is denser than warm air.

Front

What is the main form of energy transfer when touching a hot object?

Back

The main form of energy transfer is conduction.