Columbia University Physics Lecture Demonstrations


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Mechanics
Fluid Mechanics
Oscillation and Waves
Thermodynamics
Electricity and Magnetism
Optics
Modern Physics
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1R40.1 Happy Ball and Unhappy Ball

[Setup Time: 5 Min.] [Current Condition: Good]

Info

Two rubber balls, apparently similar except that one bounces while the other doesn't. We also have a setup where steel carbide bounces off of the same material, but a softer metal comes to a quick stop.

Parts List

Happy and Unhappy Ball in A. Mechanics, 2B

Relevant Simulation

Demo Example:

Other Information

Coefficient of Restitution

Real-Life Examples

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More Advanced Reading

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