Convection Conduction Radiation

Front

What is Convection?

Back

Convection is the transfer of heat through a fluid (liquid or gas) where warmer, less dense areas rise and cooler, denser areas sink.

Front

What is Conduction?

Back

Conduction is the transfer of heat through direct contact between materials, where heat moves from the hotter object to the cooler one.

Front

What is Radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as heat from the sun or a fire.

Front

Example of Convection?

Back

An example of convection is the warm air rising near a heater, causing cooler air to move in and be heated.

Front

Example of Conduction?

Back

An example of conduction is touching a hot stove and feeling the heat transfer to your hand.

Front

Example of Radiation?

Back

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

Front

What happens to air when it is heated?

Back

When air is heated, it expands, becomes less dense, and rises.

Front

What is the best color to absorb heat?

Back

Dark colors are best for absorbing heat, while light colors reflect heat.

Front

What is the best color and texture to re-radiate electromagnetic energy?

Back

Light and smooth surfaces are best for re-radiating electromagnetic energy.

Front

How does heat travel from the sun to the Earth?

Back

Heat travels from the sun to the Earth through radiation.