6.6A Kinetic Energy of Matter

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together, representing the smallest fundamental unit of a chemical compound.

Front

What state of matter is characterized by having a definite shape and volume?

Back

Solid.

Front

What happens to the motion of molecules when a substance is frozen?

Back

The molecules vibrate in place.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion.

Front

How does temperature affect the kinetic energy of molecules?

Back

As temperature increases, the kinetic energy of molecules increases, causing them to move faster.

Front

What is the state of matter where molecules are close together but can slide past each other?

Back

Liquid.

Front

What is the state of matter where molecules are far apart and move freely?

Back

Gas.

Front

What happens to the kinetic energy of water molecules when water freezes?

Back

The kinetic energy decreases, causing the molecules to move less and form a solid.

Front

What is the relationship between temperature and the state of matter?

Back

Increasing temperature can change a substance from solid to liquid (melting) or from liquid to gas (evaporation).

Front

What is an atom?

Back

An atom is the basic unit of a chemical element, consisting of protons, neutrons, and electrons.