Heat Transfer: Conduction, Convection and Radiation

Front

What is conduction?

Back

Conduction is the transfer of heat through a material without the movement of the material itself, typically occurring in solids. Example: A metal spoon getting hot when placed in a pot of boiling water.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). It occurs when warmer areas of a liquid or gas rise and cooler areas sink. Example: Boiling water where hot water rises to the top.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, which can occur in a vacuum. Example: The heat from the sun reaching the Earth.

Front

Identify the type of heat transfer: A hot tailpipe on a motorcycle.

Back

Conduction.

Front

Identify the type of heat transfer: Steam rising from a hot surface.

Back

Convection.

Front

Identify the type of heat transfer: The handle of a pot heating up on the stove.

Back

Conduction.

Front

Identify the type of heat transfer: A greenhouse warming up.

Back

Convection.

Front

Identify the type of heat transfer: Heating food in a microwave.

Back

Radiation.

Front

What is the role of thermal conductivity in conduction?

Back

Thermal conductivity is a measure of a material's ability to conduct heat. Materials with high thermal conductivity transfer heat more efficiently.

Front

How does convection affect weather patterns?

Back

Convection currents in the atmosphere can lead to the formation of clouds and storms, as warm air rises and cool air sinks.