Mr. Andersen explains the simple principles behind simple machines. He shows how the mechanical advantage of a simple machine can increase the input force. A brief discussion of work is also included.

Discover how inclined planes, a basic but powerful type of simple machine, make it easier to move objects with less effort. Learn about the physics behind using ramps and slopes to harness gravity, and explore how different angles of...

Dr. Forrester explains how most of our energy is generated by the sun in one way or another.

Dr. Forrester discusses various types of simple machines, such as the lever, pulley, wedge, wheel and axle, screw, and inclined plane.

Students learn to define and recognize the six simple machines: the inclined plane, the wedge, the screw, the lever, the wheel and axle, and the pulley. Real life situations demonstrate the function and purpose of each machine. Students...