PurposeMeasure speeds using the slope of a Position vs. Time graph.
Research QuestionsHow closely can you move your hand at designated speeds?
Setup and MaterialsMotion Detector, interface unit, meter stick
Sample rate = 20 Hz, Duration = 5 s.
ProcedurePractice moving your hand along a meter stick at speeds of 10, 5 and 2 cm/s and then use the Position vs. Time graph produced with a Motion Detector to monitor your motion. The slope of your graph line represents your average hand speed. Calculate the percent error between your target speed and the measured speed.
% Error 10
Conclusion(Respond to your research question, include results, and discuss error)
Suggestions for Further ResearchTry measuring with hand speeds of 50 cm/s, 20 cm/s or even 1 cm/s
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Thank you to Roger Larson, the author of this lab. The webmaster has taken a few liberties with re-formatting Roger's original document and changing the photo.