Al Tobias (wat4y) - Office: Gibson S123 & Physics 218, (434) 924-0538
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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video - Archimedes' Principle IPurpose:To show that the buoyant force exerted on an object is equal to the weight of the displaced water (or fluid).Procedure:    Get the students to believe that the inside of the silver cylinder has the same volume as the blue cylinder (put the blue cylinder into the silver cylinder). Hang the cylinders from the scale as shown and record their weight. Lower the blue cylinder into the water and show the change in weight. With the blue cylinder still submerged, fill the silver cylinder with water. Since the silver cylinder holds water equal in volume to the blue cylinder, the reading on the scale should return to the original reading before lowering the blue cylinder into the water. Equipment:
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