cq_1_012

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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.

** CQ_1_01.2_labelMessages **

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):

Not very accurately, probably within a .1 accuracy. I noticed in my last lab, I kept trying to take a reading at a certain distance and my accuracy of hitting the button was always off by a little. The results would vary by a little.

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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):

When I tried to push the button rapidly, the was getting accuracy of .001. I experimented with it by hitting the button quickly a total of five times. I would get time intervals in the rante of .14X.

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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 stated above, the accuracy was very good (0.001) during very short time intervals. When I increased the time intervals the accuracy varied between 0.1 and 0.01.

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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):

I was not able to accurately measure the positions because of visibility issues. I would pause the video but when I tried to look at the time for the position of the roll of table the measuring stick used to release the tape and pendulum would be in the way of the reading. There were delays in the video software when I pushed pause. I would hit pause when I believe the tape would get to a certain position but it would be a few milliseconds later that the pause would take effect. Therefore, it was difficult to truly get an accurate reading of position and time.

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&#Your work looks good. Let me know if you have any questions. &#