# Title Image Description Video
1 Passing the Wheel

Transfer of Angular Momentum

 

Tip the spinning tire half way and hand it to a student on a turntable. This student tips it another half way and hands it back. Repeat until the spinning student it turning to fast for the hand off. You can add or subtract from the angular momentum depending on which way you tip the wheel.

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2 Rotating Stool and Masses

Conservation of Angular Momentum

Start a student rotating on the platform with the masses close to their body. Watch the change in spin as the student moves the masses further away.

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3 Rotating Hoberman Sphere

Conservation of Angular Momentum

A Hoberman sphere mobile has a ball bearing fishing swivel added so that it can rotate easily.  Start it rotating in the expanded position.  Pull on the string to collapse the sphere and observe the change in rotation speed.

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4 Rotating Stool and Wheel

Conservation of Angular Momentum

A student rotating on the platform can tip a spinning wheel in order to spin. Tipping the wheel in the opposite direction spins the student the opposite direction.

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Video 2