Thermal Energy

Front

What is thermal energy?

Back

Thermal energy is the total energy of all the particles in a substance, related to their temperature and motion.

Front

What happens to a liquid when enough energy is added?

Back

It changes phase to a gas.

Front

Describe the particle arrangement in a liquid.

Back

Particles are free to move around one another but still touch.

Front

What is the effect of adding heat to a solid?

Back

The motion of the particles will increase, causing them to move faster.

Front

What is melting?

Back

Melting is the process of changing from a solid to a liquid.

Front

What is the state of matter with no fixed shape but a fixed volume?

Back

Liquid.

Front

What happens to the volume of a liquid when it is heated?

Back

It may expand slightly, but it generally maintains a constant volume.

Front

What is the process of changing from a gas to a liquid called?

Back

Condensation.

Front

What is evaporation?

Back

Evaporation is the process of changing from a liquid to a gas.

Front

What is the state of matter where particles are tightly packed and vibrate in place?

Back

Solid.