Ball and feather in air/vacuum : Différence entre versions

De PhyLab
Sauter à la navigation Sauter à la recherche
(Created page with "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.")
 
(video link added)
 
(22 révisions intermédiaires par 2 utilisateurs non affichées)
Ligne 1 : Ligne 1 :
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.
+
__NOTOC__
 +
 
 +
Back to [[1C_-_Motion_in_one_dimension|1C - Motion in one dimension]]<br>
 +
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==
 +
<gallery>
 +
File:1C20.10_1.JPG|Figure1
 +
</gallery>
 +
{{#widget:YouTube|id=0rAob6A8ms0}}

Version actuelle datée du 11 octobre 2017 à 18:05


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