This discrepant event demonstration will really get your students thinking about circular motion concepts! Just spin the device by hand and watch the tethered bobbers move almost “magically” into the center of the circle and not to the outside as you might expect. When you accelerate around a sharp circle in your car, you get thrown to the outside. Why then do the bobbers seem to do just the opposite? This rugged, yet inexpensive, apparatus will allow you to demonstrate this “magic” for years to come.
Concepts: Uniform circular motion, centripetal force, center of curvature. Time Required: 10 minutes Materials Provided: Durable and reusable Circular Motion Paradox apparatus.