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Feather In A Vacuum


Show that acceleration due to gravity is independent of mass. Classes Used: PHYS 107

motion in a vacuum


To show that bodies fall with the same acceleration provided there are no frictional forces.


Long tube with feather and solid object, seal, vacuum pump


A feather and a small solid object are placed in a long tube and the tube is then evacuated usig the vacuum pump. Invert and watch.


the pressure gauge provides a reading of P_atm - P_tube and that the units of the gauge are inHg. Since 1 atm ~ 29.92 inHg, when the gauge dial reads nearly 30 there is an adequate vacuum inside the tube

Updated 04/25/13

Demo room information

Location —-
Maker Unknown
Current State Working
demonstrations/1_mechanics/1c_motion_in_one_dimension/feather_in_a_vacuum/start.txt · Last modified: 2020/01/07 19:45 by demoroom