Difference between revisions of "Ping-pong ball on spinning platform"
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Latest revision as of 14:38, 28 August 2015
Back to 3A - Oscillations
PIRA index: 3A40.10
Description
A ping-pong ball attached to the edge of a spinning platform traces out a circle when viewed from the side. When its shadow is viewed from the front, the ball appears to oscillate in simple harmonic motion.
Equipment
- rotating platform with ping-pong ball
- overhead projector
Instructions
Place the spinning platform on the overhead projector. The class should be able to see the circular motion from the apparatus itself but see the simple harmonic motion from the overhead projector.
Keywords
simple harmonic motion, ping pong ball, oscillation, shadow, spinning, rotating
Images & Movies
Figure1
