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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.
** 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: ->->->->->->->->->->->-> scussion (start in the next line):
I believe that right now, I can only measure within .25s. I'm sure I can improve that, but this is a new skill to practice and it's not coming easily to me.
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What is the shortest time interval you think you would be able to measure with reasonable accuracy?
answer/question/discussion: ->->->->->->->->->->->-> scussion (start in the next line):
For that .25s potential error, the time interval would need to be around 2.5s for my measurements to have about a 10% margin of error. That's still pretty high, but for the rolling ball experiment, I was still able to get plausible results that I was comfortable with for the purposes of that experiment.
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How does the percent error in timing intervals change as the time between the events gets smaller?
answer/question/discussion: ->->->->->->->->->->->-> scussion (start in the next line):
As the time between events gets smaller, the same length of error in seconds becomes a greater percent error.
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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: ->->->->->->->->->->->-> scussion (start in the next line):
Not very accurately at all! This is the video I had the most trouble with. I could see the ball hit the table somewhat clearly, and I believe I could feel good about my ability to click a timer pretty close to the precise moment of impact. But I watched the video at least 15 times and I could never be sure I could even see when the pendulum hit the wall, so even deciding when to click would be a challenge-- then there's the issue of my reaction time, actual click speed, etc.
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&#Very good responses. Let me know if you have questions. &#