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 - Free Fall AccelerationPurpose:One can qualitatively show the relationship between time and distance in free fall by dropping equal masses separated by different distance intervals.Procedure: There are two sets of weights, one set with the weights evenly spaced along the string and one set with the weights spaced as n^2*x where n=1,2,3 etc. Stand on a stool or other appropriate item and hold weighted string above the aluminum plate. Release the string and note the time between each successive click of the weights on the plate. The quadratically spaced weights will strike with noticeable regularity while the evenly spaced weights will stike at shorter and shorter time intervals.  |