An introductory lesson describing the definition of energy, and highlighting different sources of usable energy.

This tutorial explains the difference between potential and kinetic energy. It also introduces the Law of Conservation of Energy.

Learn about the definition of energy, the forms that it comes in, and the difference between renewable and nonrenewable sources.

Learn about various states of energy, and how those states affect living organisms.

This lesson will present how light and motion energy can be used to power machines. It is 4 of 4 in the series titled "Energy: Machines, Motion and Light."