Conduction, Convection, Radiation

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 convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases), where warmer, less dense fluid rises and cooler, denser fluid sinks.

Front

What is radiation?

Back

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

Front

What is needed for convection to occur?

Back

Fluids (liquids or gases) are needed for convection to happen.

Front

Which method of heat transfer does not require a medium?

Back

Radiation does not require a medium and can occur in a vacuum.

Front

What happens to a fluid when it is heated?

Back

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

Front

What is the role of insulation in heat transfer?

Back

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

Front

In which state of matter are particles closest together?

Back

Particles are closest together in a solid.

Front

How does heat transfer occur in a solid?

Back

In solids, heat transfer occurs primarily through conduction as particles vibrate and pass energy to neighboring particles.

Front

What is an example of convection in everyday life?

Back

An example of convection is the heating of water in a pot, where hot water rises and cooler water sinks.