[Free Registration/Login may be required to access all resource tools.] Definition of gravity and how it relates to weight. Includes a video. [3:54]

An interactive simulation that teaches about gravitational force, circular motion, and astronomy by manipulating the sun, earth, moon, and a space station to observe the effects of gravity and orbital paths. This simulation can either be...

An interactive simulation that teaches about motion, acceleration, and velocity by allowing students to build their own solar system and watch the effects of gravitational pull and how that changes with initial position, velocity, and...

Mechanical energy is the most easily understood form of energy for young scholars. When there is mechanical energy involved, something moves. Mechanical energy is a very important concept to understand. Engineers need to know what...