Quarterly

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