Potential Energy
Energy stored in a person or object
Gravitational Potential Energy
Energy due to an object's position above Earth's surface
Elastic Potential Energy
Energy due to an object's shape when stretched or compressed
Kinetic Energy
Energy of moving matter
Joule
SI unit for energy, equivalent to a Newton-meter
Energy Conversion
Process where one form of energy changes into another
Mechanical Energy
Energy of movement
Chemical Energy
Energy stored in chemical bonds
Electrical Energy
Energy of moving electrons
Thermal Energy
Energy of moving atoms in matter
Sound Energy
Form of mechanical energy from vibrations in matter
Nuclear Energy
Energy stored in atomic nuclei
Conservation
Saving resources by using them efficiently or reducing usage
Wedge
Simple machine with two inclined planes used to cut or split objects
Screw
Simple machine with an inclined plane wrapped around a cylinder
Lever
Simple machine consisting of a bar that rotates around a fixed point
Wheel and Axle
Simple machine with connected rings or cylinders for force application