Thermal Energy and Heat Transfer

Front

What is thermal energy?

Back

The total energy of all the particles in a substance.

Front

What is temperature?

Back

A measure of the average kinetic energy of the individual particles in an object.

Front

What is heat transfer?

Back

The movement of thermal energy from a warmer object to a cooler object.

Front

In which direction does heat transfer occur?

Back

Only from warm objects to colder ones.

Front

What is conduction?

Back

The transfer of heat through direct contact between materials.

Front

What is convection?

Back

The transfer of heat through the movement of fluids (liquids or gases).

Front

What is radiation?

Back

The transfer of heat through electromagnetic waves, such as sunlight.

Front

What is the difference between thermal energy and temperature?

Back

Thermal energy is the total energy of particles, while temperature is the average kinetic energy of those particles.

Front

What happens to particles in a substance when it is heated?

Back

The particles move faster and spread apart.

Front

What is an example of conduction?

Back

Touching a hot stove and feeling the heat transfer to your hand.