Energy!~

Today we're going to learn about energy and all the different types of energy but first we have to find out what energy is!

Energy is the capacity of a physical system to perform work which exists in several other forms such as heat, kinetic or mechanical energy, light, potential energy, electrical or other forms.

http://physics.about.com/od/glossary/g/energy.htm

Potential Energy - the stored energy that is held within the gravitational field.

Kinetic Energy - the energy of motion - it's ability to do work

Thermal Energy - part of the internal energy of a system which is the total present kinetic energy resulting from the random movements of atoms and molecules.

Sound Energy - the energy produced by sound vibrations as they travel through a specific medium.