Conduction, Convection, and Radiation

Front

What is conduction?

Back

Conduction is the transfer of heat or electricity directly through a substance, where energy is passed from one particle to another without the movement of the substance itself.

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, creating currents.

Front

What is radiation?

Back

Radiation is the transfer of energy through electromagnetic waves, such as sunlight, without the need for a medium.

Front

What happens to warm air in a room?

Back

Warm air rises because it is less dense than cool air, demonstrating convection.

Front

What is an example of conduction?

Back

An example of conduction is when a metal spoon gets hot from being placed in a pot of 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, creating air currents.

Front

What is an example of radiation?

Back

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

Front

How does temperature affect convection currents?

Back

As temperature increases, fluids become less dense and rise, while cooler fluids sink, creating convection currents.

Front

What is the role of density in convection?

Back

Density differences in fluids drive convection; warmer, less dense fluid rises while cooler, denser fluid sinks.

Front

What is the primary method of heat transfer in solids?

Back

The primary method of heat transfer in solids is conduction.