Front

What is Thermal Energy?

Back

The total kinetic energy of the tiny particles that make up matter.

Front

True or False: When two objects touch, the warmer one always transfers its energy to the cooler one.

Back

True

Front

If two cups are the same size, which has lower average kinetic energy: iced tea or hot tea?

Back

Iced tea has lower average kinetic energy than hot tea.

Front

What happens to the thermal energy of hot chocolate when it is put in the microwave?

Back

Thermal energy is added to the hot chocolate.

Front

Which sample has molecules with more average kinetic energy: Sample A with faster moving molecules or Sample B with more molecules?

Back

Sample A has more average kinetic energy because it has faster moving molecules.

Front

What is the relationship between temperature and thermal energy?

Back

Temperature is a measure of the average kinetic energy of particles, while thermal energy is the total kinetic energy of all particles in a substance.

Front

What is energy transfer?

Back

The process of thermal energy moving from a warmer object to a cooler object.

Front

What is the effect of heating a substance on its thermal energy?

Back

Heating a substance increases its thermal energy.

Front

What happens to the kinetic energy of particles in a substance as it cools down?

Back

The kinetic energy of the particles decreases as the substance cools down.

Front

What is the definition of heat in terms of thermal energy?

Back

Heat is the transfer of thermal energy from one object to another due to a temperature difference.