Phy 201
Your 'pendulum counts in-class' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** **
** **
Report one line per observation. Each line should consist the length of the pendulum being observed, the 1-minute count and the scale factor by which your reported length should be multiplied to get the length of the pendulum in centimeters. The three requested quantities should be separated by commas. Each line should therefore consist of three numbers, separated by commas. Don't include any words, units, or other information in any of these lines.
You may report as many lines as possible. Use the space below.
11.25, 60, 25
2.5, 125, 4
36, 30, 84
Your data report (start on the next line):
In this exercise we used the pendulum that consisted the size of our standard text book 11.25 in. long, that was equivalent to about 60 cycles or a complete oscillations (extreme to opposite extreme and back) to keep track on how long it took the marble to fall from the height of the table to the bottle cap, rolling from an acquired incline.
Test Number /Cycles (complete oscillations)/Bottle Cap distance Domino, Nickel and Dime added
Test #1 ~2 +/- .1 oscillation -- ~7 in. +/- .1cm -- Domino
Test #2 ~1.6 +/- .1 oscillation -- ~7 in. +/- .1cm -- Domino w/ Dime
Test #3 ~1.6 +/- .1 oscillation -- ~7 in. +/- .1cm -- Domino w/ Nickel
Test #4 ~1.3 +/- .1 oscillation -- ~7 in. +/- .1cm -- All
Add your description of how you made your observations. Include an explanation of how much uncertainty there was in each observation, and explain how you arrived at your uncertainty estimate.
Your explanations (start on the next line):
The pendulum oscillated back and forth, and when it was at its highest point upon the cycle the marble was dropped allowing you indicate how many cycles would occur under the amount of time it took for the marble to drop to the bottle cap.
Height (increase of incline) the greater the distance and the less amount of time it takes the marble to hit the bottle cap.
However in this experiment there was not or there was very little change in results relating to how far the bottle cap sat from the base of the drop compared to each test, even though there was a difference in thickness in coins and in between each test there wasn’t enough to dramatically alter the results.
There was a quite a lot of uncertainty in this experiment because, this was an observation experiment we didn’t have any true means of measuring how many tenths of an oscillation had occur during the fall and after each experiment the bottle cap’s distance could have been more or less than what we had visually observed meaning the distance could have been more or less several tenths of a centimeter than that of seven inches.
&#Good responses. Let me know if you have questions. &#