Phy 201
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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The problem:
Answer the following:
• How accurately do you think you can measure the time between two events using the TIMER program?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
This depends on the length of time we are timing. If the time is greater than 2 seconds, then I feel we can get a fairly precise time. However if we need to time something for less than 2 seconds then we will lose precision more and more as our number decreases. This is caused by human error and lack of precision by the timer program.
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• What is the shortest time interval you think you would be able to measure with reasonable accuracy?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
I believe that for the human to be able to have enough time to react efficiently, then we are at least looking at 1 second and I would be more comfortable with 2 seconds.
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• How does the percent error in timing intervals change as the time between the events gets smaller?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
As the events get smaller in time our error gets larger. Not only does our human have to react quicker, but the timer program counts in increments and not continuously.
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• How accurately are you able to measure the positions of the ball and the pendulum in the initial video?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
This depends on many variables like camera position, which frame we are looking at , etc. Ther was a few frames where the pendulum was blurred and I was unsure where the pendulum exactly was. Then other times the pendulum and ball was clear, but the clock was in between times. So in some frames I could be real precise while in others I had a large percent of uncertainty. Also depending on the angle that I was looking at the pendulum would also affect my accuracy.
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20 Minutes
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&#Your work looks very good. Let me know if you have any questions. &#