Amplify - Thermal Energy Review

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the total kinetic energy of the particles in an object.

Front

True or false? Molecules in a substance are always in motion.

Back

True

Front

What happens to thermal energy when two objects at different temperatures come into contact?

Back

Thermal energy transfers from the hotter object to the cooler object until they reach thermal equilibrium.

Front

Define 'equilibrium' in the context of thermal energy.

Back

Equilibrium is the state in which two objects in contact have the same temperature and no net transfer of thermal energy occurs.

Front

What is a system in science?

Back

A system is a set of interacting parts forming a complex whole, often studied to understand how energy and matter interact.

Front

What is conduction?

Back

Conduction is the transfer of thermal energy through direct contact between materials.

Front

What is convection?

Back

Convection is the transfer of thermal energy through the movement of fluids (liquids or gases) caused by differences in temperature.

Front

What is radiation?

Back

Radiation is the transfer of thermal energy through electromagnetic waves, such as sunlight.

Front

What is the role of thermal energy in changing states of matter?

Back

Thermal energy is absorbed or released during phase changes, such as melting, freezing, boiling, and condensation.

Front

What is the difference between temperature and thermal energy?

Back

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