Explains what is meant by potential energy and demonstrates how to use the formulas for gravitational potential energy, elastic potential energy, and electric potential energy. Includes interactive calculators for the first two formula...

Science experiment that demonstrates how energy is transferred. Includes full list of materials, procedures, and scientific explanation of how the tension in the catapult causes an object to travel far.

As a continuation of the theme of potential and kinetic energy, this instructional activity introduces the concepts of momentum, elastic and inelastic collisions. Many sports and games, such as baseball and ping-pong, illustrate the...