Voir la source de Ping-pong ball on spinning platform

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Back to [[3A_-_Oscillations|3A - Oscillations]]<br>
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==
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File:3A40.10_1.JPG|Figure1
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