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 - Ballistics on Air TrackPurpose:To accurately measure the velocity of an air gun pellet.Procedure: Set up a PASCO photogate on the air track and connect it to the interface. Place cart with sponge on air track roughly 1/2 meter before in front of the photogate. Load pellet gun, pump 10 times and fire into sponge making sure the barrel is at least 8 inches away from the sponge and is level. Note speed of travel thru the photogate. Mass of .177 caliber "Crosman Copperhead" pellet = 0.51 gram. Hints:The air track cart with sponge increases in mass with use. The pellets' masses add up. Therefore, be sure to measure the mass of the cart before performing demo. MASS of CART
Equipment:
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