cq_1_012

#$&*

Phy 121

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):

#$&* I can answer it pretty accurately. It takes quick skills when you are clicking on the timer program.

• 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):

#$&* Probably a little less than a second between intervals

• 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):

#$&* They get smaller.

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The time intervals get smaller, but percent errors don't.

How is the time interval used in calculating percent error? What happens to the calculation as the time interval decreases toward zero?

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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):

#$&* It was rather difficult but I think that I estimated as accurately as possible.

@&

You need to give a quantitative answer here.

You can very clearly measure positions accurate to within +-10 centimeters. You very clearly can't measure positions accurate to within +- 1 millimeter.

So how accurately do you think you can measure positions in the video?

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5 minutes

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#$&* self-critique

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You need to be a little more specific with some of your answers. It shouldn't take you more than 5 minutes to do so.

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