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Hundreds of free games illustrating basic principles of physics.

It documents the history of human flight. Photos, drawings, and articles are presented in six categories: myth and fantasy, early science, balloons and airships, kites and gliders, the Wright brothers, and after the Wright brothers.

A brief and basic explanation of speed, velocity and acceleration. There is also a tool to create your own graphs for accelerating objects and a short quiz to test your knowledge.

Introduction to motion and the associated terms.