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:Due to reaction time I
would say 0.1 seconds
I have had this question before, am I correct in
saying 0.1 seconds? It seems to me that reaction time
is more than .01 seconds
What is the shortest time interval you think you would
be able to measure with reasonable accuracy?
answer/question/discussion: I remember doing the
initial timer program where I clicked as fast as
possible. However, if I am measuring something I have
to figure in reaction time. I would say I could
measure it accurately to +-0.1 seconds
How does the percent error in timing intervals change
as the time between the events gets smaller?
answer/question/discussion: It increases dramatically.
Say that you are timing intervals of 100.0 seconds.
0.1 would be the uncertainty so
.1/100 = .001 or one tenth of a percent error
If however you were measuring intervals of 1.0 seconds
(possibly even less) then it would be:
.1/1 = 10% error
How accurately are you able to measure the positions
of the ball and the pendulum in the initial video?
answer/question/discussion:Because of the bluriness I
would say within an inch or so. However if you use the
same standard for both, say the edge of how far the
bluriness goes, then your answers in the end will be
more accurate.
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15 min
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Excellent responses.