Ball and feather in air/vacuum : Différence entre versions

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*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

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