Thermal Energy

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance, which determines its temperature.

Front

What is conduction?

Back

Conduction is the process of heat transfer through direct contact between materials, where heat moves from the hotter object to the cooler one.

Front

What is convection?

Back

Convection is the process of heat transfer in fluids (liquids and gases) where warmer, less dense areas rise and cooler, denser areas sink, creating a circulation pattern.

Front

What is radiation?

Back

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

Front

What is the primary method of heat transfer in solids?

Back

Conduction is the primary method of heat transfer in solids.

Front

How does temperature relate to kinetic energy?

Back

The higher the kinetic energy of particles in a substance, the higher the temperature of that substance.

Front

What is an example of conduction?

Back

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

Front

What is an example of convection?

Back

A pot of water boiling on a stove is an example of convection.

Front

What is an example of radiation?

Back

A group of friends gathering around a fire to stay warm is an example of radiation.

Front

What happens to particles in a substance as it heats up?

Back

As a substance heats up, its particles gain kinetic energy and move faster.