1D50.25 - Conical Pendulum
Demonstrate a conical pendulum.
Place the pendulum assembly on to hand driven rotator such that the set screw is tightened onto the flat part of the hand driven rotator.
Spin up pendulum, be sure not to spin it to fast or you will hit the sides of the base. Once you can see a nice rotation from the pendulum stop the hand driven rotator. Watch the pendulum spin while the rotator is at rest. Since the pendulum is on a spring steel rod rather than a string the pendulum is damped and will fairly quickly decrease the radius of rotation until to gets to a fairly small one.