Ball and feather in air/vacuum : Différence entre versions
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| + | PIRA index: 1C20.10 | ||
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==Description== | ==Description== | ||
A feather falls more slowly than a ball down a tube due to air resistance. When the tube is evacuated, both the feather and ball fall with equal speed. | A feather falls more slowly than a ball down a tube due to air resistance. When the tube is evacuated, both the feather and ball fall with equal speed. | ||
| + | |||
| + | ==Equipment== | ||
| + | *... | ||
| + | *... | ||
==Keywords== | ==Keywords== | ||
Version du 6 juin 2014 à 19:22
PIRA index: 1C20.10
Sommaire
Description
A feather falls more slowly than a ball down a tube due to air resistance. When the tube is evacuated, both the feather and ball fall with equal speed.
Equipment
- ...
- ...
Keywords
ball, drop, feather, vacuum
Images
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caption
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