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Physics behind a yo-yo

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by

Nhi Nguyen

on 11 November 2012

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Transcript of Physics behind a yo-yo

by: Nhi Nguyen The Physics behind a Yo Yo How a Yo-Yo Works Newtons First Law Parts of a Yo-Yo When on string tricks are performed, friction occurs due to the rubbing of the yo yo and the string. friction acts between the string and the axle to resist further spinning motion, and potentially catch and re-roll the yo yo. Friction potential Kinetic * any object in motion will stay in motion unless an outside force is acted upon it. Gravitational Pull if not for the gravitational pull of the earth, the yo yo would fly off into the air like a balloon and you would have no control of it Energy When the yo yo is wound up, no energy is being used
But because of gravity, the yo yo has potential energy. When the yo yo is released and is moving, it has kinetic energy This occurs when you want the yo yo to come back to your hand. The yo yo will stay in motion until an outside force (your hand) pulls on the string for the yo yo to come back. Sound Waves Do you think of sounds when it comes to yo-yoing??????? The yo yo makes a spinning noise while it is in motion, and that is used to determined the speed of the yo yo. Due to those sounds, you can tell when the yo yo will stop spinning.
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