Speed is the rate at which something moves. Fast-moving objects have high speeds, slow-moving ones have low speeds, and objects with no movement have zero speed. Velocity, on the other hand, is speed ...

The Doppler effect is an observed change in pitch (how high or low a sound is) when either the source of the sound or the listener is in motion. Imagine a car, its horn blaring, approaching you as you ...

The Sulphur Springs Museum and Heritage Center is home to a hands-on exhibit called Velocity, which uniquely teaches about various principles of physics. The exhibit runs through August 26.