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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Work Done by a Compressed SpringPurpose:To verify quantitatively the work done when a compressed spring is released.Procedure:Slide 0.192kg travel car into launcher car and secure launch lever. Measure spring displacement. While holding launcher car in place, launch travel car. Note velocity on computer display. The Capstone software calculates speed by measuring time it takes car's 1cm wide flag to go thru photogate. Measure spring constant of launcher by hanging weights on the spring and noting the displacement.Quantitatively here are some numbers: Mass of the Travel Cart = 0.192kg Cart Velocity = 1.15m/s Spring Constant = 28.6N/m Spring Compression = 0.095m with these numbers we get conservation of energy within 2% Hints:Use Capstone experiment file "Work_Done_by_Compressed_Spring.cap". Single photogate plugs into Digital Channel #1.Equipment:
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