This animated tutorial illustrates distance and displacement to define speed and velocity.

What is speed? What is velocity? Illustrated discussion of speed and velocity including how they are measured.

This study guide on motion covers some key vocabulary and terms to describe motion: displacement vs. distance, acceleration, speed vs. velocity, and instantaneous vs. average. It includes graphs showing distance vs. time, velocity vs....

An activity in which average speed is calculated for a ball sliding along an inclined plane. This speed is compared to various instantaneous speeds along the incline.

Gain an understanding of average velocity and speed with this helpful reference tool. Provides a detailed definition and examples that enhance further explanation. Includes links to related topics.