Questions on Conduction, Convection, and Radiation

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs when faster-moving particles collide with slower-moving particles, transferring energy.

Front

Give an example of conduction.

Back

An example of conduction is an ice cube melting in a person’s hand.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). Warmer, less dense fluid rises while cooler, denser fluid sinks, creating a circulation pattern.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves. It does not require a medium to travel through, allowing heat to be transferred through space.

Front

Which method of heat transfer does not require a medium?

Back

Radiation does not require a medium for heat transfer.

Front

What happens to the density of a liquid when it is heated?

Back

When a liquid is heated, it becomes less dense and tends to rise.

Front

What is the relationship between particle arrangement and state of matter?

Back

In solids, particles are closely packed together; in liquids, they are less tightly packed; and in gases, they are far apart.

Front

Which state of matter has particles that are closest together?

Back

Solid.

Front

What is the role of insulation in heat transfer?

Back

Insulation reduces heat transfer by conduction, convection, and radiation, helping to keep heat in or out.

Front

What is an example of convection?

Back

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