This lesson points out that the motion of objects (velocity or acceleration) is almost never constant, and applies this idea to the motion of a person walking. The discussion covers the energy transfers involved in...

This webpage, from Hyperphysics, describes a pendulum and provides a formula for its period. The page includes a calculator to obtain the period from the pendulum's length and the acceleration of gravity.

This site, created by Tom Roger of Intuitor.com, is dedicated to describing the poor physics that can be found in many movies. It includes general discussions of common movie mistakes, with simple but thorough...

This is a set of 7 illustrated web pages discussing Kepler's laws. Included are equations and properties of conic sections, the scale of the solar system, the energy equation for Keplerian motion, Newton's "Universal...

This website consists of a collection of short videos designed for computer analysis in introductory physics classrooms. The videos are 20-40 photograph frames in length and each depict a physical process commonly...