Thermal Energy

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 particles in a substance.

Front

What are the three states of matter?

Back

The three states of matter are solid, liquid, and gas.

Front

What happens to particles in a solid?

Back

In a solid, particles are closely packed together and vibrate in place, giving it a definite shape and volume.

Front

What happens to particles in a liquid?

Back

In a liquid, particles are close together but can move past one another, allowing liquids to take the shape of their container.

Front

What happens to particles in a gas?

Back

In a gas, particles are far apart and move freely, filling the entire volume of their container.

Front

What is condensation?

Back

Condensation is the process where gas turns into a liquid, often when it cools down.

Front

What is melting?

Back

Melting is the process where a solid turns into a liquid when it is heated.

Front

What is freezing?

Back

Freezing is the process where a liquid turns into a solid when it is cooled.

Front

What is evaporation?

Back

Evaporation is the process where a liquid turns into a gas, usually when it is heated.

Front

What is the role of temperature in changing states of matter?

Back

Temperature affects the energy of particles; increasing temperature can cause melting and evaporation, while decreasing temperature can cause freezing and condensation.