Learn how to calculate the speed of a mass in a circular pendulum with this clear physics tutorial! Step-by-step explanations make it easy to understand circular motion, energy, and angular velocity.

In this simple demonstration of how waves work, a Harvard instructor shows how a group of pendulums can move through a complicated dance together — due entirely to the way each pendulum oscillates at ...

Introduction Did you know that playground swings can provide a good lesson in physics—as well as lots of fun? The back-and-forth motion of a swing is an example of a pendulum. We see pendulums in ...