Topics covered include what acceleration is, the difference between constant and non-constant acceleration, acceleration in a free-falling object, the equation used to compute acceleration, and the difference between positive and...

University of Alaska physics professor site explaining the concept of terminal velocity. Uses the terminal velocities of humans and cats for comparison. Site contains an interesting graph of the percent fatalities versus stories fallen.

This site from NASA uses a colorful graphic to illustrate why objects reach terminal velocity. Provides equation for the terminal velocity of an object. Graphic is accompanied by a simple explanation.

Includes exhaustive information and a wealth of activities pertaining to aerodynamics and the physics of flight.