Conduction, Convection, 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.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases) caused by differences in temperature and density.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, which can occur in a vacuum.

Front

Give an example of conduction in everyday life.

Back

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

Front

How does convection work in a pot of boiling water?

Back

In a pot of boiling water, hot water rises to the surface, cools down, and then sinks, creating a circular motion.

Front

What is the role of density in convection?

Back

In convection, hot fluids become less dense and rise, while cooler fluids are denser and sink, creating a convection current.

Front

What type of heat transfer occurs when you feel the warmth of the sun on your skin?

Back

The warmth of the sun on your skin is an example of radiation.

Front

What is an example of radiation in nature?

Back

An example of radiation in nature is the heat from the sun warming the Earth.

Front

What is the definition of thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact with each other reach the same temperature and no heat flows between them.

Front

How does insulation affect heat transfer?

Back

Insulation reduces heat transfer by conduction, convection, and radiation, keeping heat in or out of a space.