Explore and review harmonic motion with this illustrated guide.

Wikipedia offers great information on simple harmonic motion, including an image, formulas, and hyperlinked terms.

This is a glossary of terms and definitions used in Chapter 16: Oscillatory Motion and Waves from the AP Physics online text.

The periodic motion of a pendulum is described with words and equations; little conceptual emphasis. Sample problems with solutions are provided.

This interactive activity from the NOVA Web site samples Galileo's experiments with falling objects, projectiles, inclined planes, and pendulums.

Provides a long list of physics formulas for easy reference.