Difference between revisions of "Ball and feather in air/vacuum"

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Back to [[1C_-_Motion_in_one_dimension|1C - Motion in one dimension]]<br>
 
PIRA index: 1C20.10
 
PIRA index: 1C20.10
  
 
==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.
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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==
 
==Equipment==
*...
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*Double tube assembly
*...
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*Vacuum pump
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*Clear flexible tubing
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*Power cable
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*Extension cord
  
 
==Instructions==
 
==Instructions==
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With both cylinders in air, rotate the tubes by 180 degrees...
  
 
==Keywords==
 
==Keywords==
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==Images & Movies==
 
==Images & Movies==
 
<gallery>
 
<gallery>
File:IMG 0590.JPG|caption
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File:1C20.10_1.JPG|Figure1
File:IMG 0590.JPG|caption
 
File:IMG 0590.JPG|caption
 
 
</gallery>
 
</gallery>
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{{#widget:YouTube|id=0rAob6A8ms0}}

Latest revision as of 18:05, 11 October 2017


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