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.

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

How does warm air behave in a room?

Back

Warm air rises because it is less dense than cooler air, leading to convection currents.

Front

What is an example of convection in everyday life?

Back

Boiling water in a pot on the stove is an example of convection, where heat is transferred through the movement of water.

Front

How do heat lamps keep baby chickens warm?

Back

Heat lamps transfer heat to baby chickens through radiation, warming them without direct contact.

Front

What type of energy transfer occurs when sitting around a campfire?

Back

The warmth felt from a campfire is due to radiation, as heat is transferred through electromagnetic waves.

Front

What is the role of density in convection?

Back

Density differences in fluids cause warmer, less dense areas to rise and cooler, denser areas to sink, creating convection currents.

Front

Can radiation occur in a vacuum?

Back

Yes, radiation can occur in a vacuum, as it does not require a medium to transfer heat.

Front

What is an example of conduction?

Back

An example of conduction is touching a hot stove, where heat is transferred directly from the stove to your hand.