Changes in Energy on the Molecular Level

Front

What happens to particles when the temperature of matter increases?

Back

The particles speed up and move farther apart.

Front

What phase change occurs when a solid turns into a liquid?

Back

Melting.

Front

What is thermal energy?

Back

Thermal energy is heat energy.

Front

What happens to gas when the tops are removed from a container?

Back

The gas would fly out of the container.

Front

What is condensation?

Back

Condensation is the change from gas to liquid.

Front

What is the phase change from liquid to gas called?

Back

Evaporation.

Front

What is the phase change from gas to solid called?

Back

Deposition.

Front

What happens to the energy of particles in a solid as it melts?

Back

The energy increases, causing particles to move more freely.

Front

What is the process called when a liquid turns into a solid?

Back

Freezing.

Front

What is the energy of motion called?

Back

Kinetic energy.