Ball and feather in air/vacuum : Différence entre versions
Sauter à la navigation
Sauter à la recherche
| Ligne 9 : | Ligne 9 : | ||
*Vacuum pump | *Vacuum pump | ||
*Clear flexible tubing | *Clear flexible tubing | ||
| + | |||
**Power cable | **Power cable | ||
**Extension cord | **Extension cord | ||
Version du 23 juin 2014 à 17:54
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
caption
caption
caption
