Phy 231
Your 'cq_1_01.2' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
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How accurately do you think you can measure the time between two events using the TIMER program?
I think that a computer-based timing program without a method of direct input from the events being measured would be slightly inaccurate due to human error and delay.
What is the shortest time interval you think you would be able to measure with reasonable accuracy?
The human reaction time is at best around .5 s. Considering an event 1s in duration: at t=0 the event would be initiated, not until t=0.5 would the recorder be making the first mark of the event starting, at t=1, event would complete but the record of this would not be made until t=1.5. If one only needs to know the duration of events, measurement of time in this manner is sufficient.
How does the percent error in timing intervals change as the time between the events gets smaller?
Due to human error and delayed reaction time, one would expect to see an increase in % error.
How accurately are you able to measure the positions of the ball and the pendulum in the initial video?
One is able to measure the position of the ball/pendulum as accurately as the measuring device is, to the nearest mm.
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&#This looks very good. Let me know if you have any questions. &#