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Al Tobias (wat4y) - Office: Gibson S123 & Physics 218, (434) 924-0538


Physics Demo Manual

Demonstrations are cataloged according to PIRA Bibliography

PLEASE REQUEST DEMOS WELL IN ADVANCE

Due to Physics Building renovations, the lead time to set up demo requests has increased due to the need to transport equipment across campus. Please be kind and let me know well ahead of time what you need.


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 Surface Tension
 Fluid Statics
 Hydrostatic Pressure dependence on depth
  video  - Pascal's Vases
 Hydraulic Press
  video  - Balloon in Vacuum
 Marshmallow Man
  video  - Crush the Soda Can
 Magdeburg Hemispheres
 Pressure Gauges
 Qualitative Pressure Gauge
  video  - Archimedes' Principle I
 Archimedes' Principle II
 Archimedes Principle III
 Cartesian Diver
 Buoyancy of Air
  video  - Weight of Air
 Fluid Dynamics

 video  - Weight of Air

Purpose:

Air has mass which can easily be weighed.

Procedure:

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  DEMO VIDEO DOWNLOAD w/ sound / 854x480 / 5.69Mb/s / 81MB size  


Evacuate the flask with the vacuum pump, seal the valve and put the flask on the scale. Tare the scale and let the air back in to the flask. The scale now reads the weight of the air in the flask