This lesson will define kinetic and potential energy, particularly as it relates to chemical reactions.

This lesson will explore a gas from a molecular viewpoint and describe its general properties. It is 2 of 2 in the series titled "Gas."

This lesson will compare the relative kinetic energy possessed by molecules in different states. It is 2 of 2 in the series titled "Kinetic Energy and States of Matter."

This lesson will explore a liquid from a molecular viewpoint and describe its general properties. It is 2 of 2 in the series titled "Liquid."

This lesson will explore a solid from a molecular viewpoint and describe its general properties. It is 2 of 2 in the series titled "Solid."

This lesson will explore a solid from a molecular viewpoint and describe its general properties. It is 1 of 2 in the series titled "Solid."

Mr. Andersen explains the difference between potential and kinetic gravitational energy. He also uses physics to calculate the energy in various objects.

How the heck do we map out a planet without oceans? There's some tricky, yet fascinating science behind all of it! In this episode of Crash Course Physics, Shini talks to us about sea level, kinetic theory, and phase changes. [9:08]