Difference between revisions of "Ball and feather in air/vacuum"
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Revision as of 10:55, 26 June 2014
Back to 1C - Motion in one dimension
PIRA index: 1C20.10
Description
A feather falls more slowly than a ball down a tube due to air resistance. When the tubes are evacuated, both the feather and ball fall with equal speed.
Equipment
- Double tube assembly
- Vacuum pump
- Clear flexible tubing
- Power cable
- Extension cord
Instructions
With both cylinders in air, rotate the tubes by 180 degrees...
Keywords
ball, drop, feather, vacuum
Images & Movies
Figure1
