States of Matter and Energy

Front

What is a solid?

Back

A form of matter that has a definite shape and volume.

Front

What is a liquid?

Back

A state of matter that has a definite volume but no definite shape.

Front

What is a gas?

Back

A state of matter with no definite shape or volume.

Front

What happens during cooling?

Back

There is a decrease in temperature and kinetic energy.

Front

What is thermal energy?

Back

Heat energy that is the total kinetic energy of particles in an object.

Front

What is kinetic energy?

Back

The energy of motion, which increases as the temperature of a substance increases.

Front

What is potential energy?

Back

The stored energy in an object due to its position or arrangement.

Front

What happens to molecules in a solid?

Back

Molecules are closely packed together and vibrate in place.

Front

What happens to molecules in a liquid?

Back

Molecules are close together but can move past one another, allowing liquids to flow.

Front

What happens to molecules in a gas?

Back

Molecules are far apart and move freely, filling the space available.