Conduction, Convection, Radiation

Front

What is conduction?

Back

Conduction is the transfer of heat from one object to another through direct contact.

Front

What is convection?

Back

Convection is the transfer of heat by currents through liquids or gases, where warmer, less dense areas rise and cooler, denser areas sink.

Front

What is radiation?

Back

Radiation is the transfer of heat through electromagnetic waves, such as sunlight.

Front

In which direction does heat transfer?

Back

Heat transfers from hot to cold.

Front

What happens to warm air in a room?

Back

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

Front

What is an example of conduction?

Back

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

Front

What is an example of convection?

Back

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

Front

What is an example of radiation?

Back

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

Front

What is the role of density in convection?

Back

In convection, warm air or liquid expands, becomes less dense, and rises, while cooler, denser air or liquid sinks.

Front

How does heat transfer in a heater?

Back

Heat transfers through conduction when the heater warms the air in contact with it.