Convection, Conduction, Radiation Practice

Front

What is conduction?

Back

Conduction is the transfer of thermal energy through direct contact between materials. It occurs when heat moves from a hotter object to a cooler one through physical contact.

Front

What is convection?

Back

Convection is the transfer of thermal energy through the movement of fluids (liquids or gases). It occurs when warmer, less dense fluid rises and cooler, denser fluid sinks, creating a circulation pattern.

Front

What is radiation?

Back

Radiation is the transfer of thermal energy through electromagnetic waves. It does not require a medium (like air or water) to transfer heat, allowing it to occur through space.

Front

How does heat transfer when roasting marshmallows over a fire?

Back

Heat from the fire is radiated to the marshmallow.

Front

How is heat transferred when you stand near a campfire?

Back

Heat is transferred to you by radiation.

Front

What is an example of conduction in everyday life?

Back

An example of conduction is when a hot mug of cocoa transfers thermal energy to the table it is sitting on.

Front

Which method of heat transfer is demonstrated by a pot boiling water on a stove?

Back

This demonstrates convection, as the hot water rises and cooler water sinks.

Front

What is an example of radiation in cooking?

Back

Cooking a hotdog in a microwave is an example of heat transfer by radiation.

Front

What happens to thermal energy during conduction?

Back

Thermal energy moves from a hotter object to a cooler object through direct contact.

Front

What is the role of density in convection?

Back

In convection, warmer, less dense fluid rises while cooler, denser fluid sinks, creating a circulation pattern.