Phy 121
Your 'timer program' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** Your General Comment **
** Describe what you see on your first 10 clicks **
The timer seems to record various intervals of time based on when the program is opened.
** Your TIMER data from 20 fast clicks **
1 2.421875 2.421875
2 2.578125 .15625
3 2.765625 .1875
4 2.929688 .1640625
5 3.117188 .1875
6 3.296875 .1796875
7 3.460938 .1640625
8 3.640625 .1796875
9 3.8125 .171875
10 3.992188 .1796875
11 4.15625 .1640625
12 4.320313 .1640625
13 4.5 .1796875
14 4.679688 .1796875
15 4.859375 .1796875
16 5.039063 .1796875
17 5.210938 .171875
18 5.390625 .1796875
19 5.585938 .1953125
20 5.773438 .1875
21 5.953125 .1796875
** Your average time interval for 20 time intervals **
0.1765625
In order to get this result, I added up each interval and divided by 20.
** Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
.15625, 1
.1875, 3
.1640625, 4
.1796875, 9
.171875, 2
.1953125, 1
** Your general comment to this point **
** Why did you observe only certain time intervals? **
I don't think that the program is flawed at all. I think it simply uses a method of timing that's not immediately obvious.
** What did you see when you looked at the differences between time successive time intervals? **
This tells us that rather than placing importance on the time, the program places more of an importance on the intervals between the time.
** Your time intervals for 7 complete breaths: **
2.359375
5.742188
6.820313
6.117188
5.992188
5.617188
6.789063
5.523438
** Your general comment to this point: **
** Why did you rarely, if ever, observe that same time interval twice? **
I think this happened because the intervals between the times I clicked the timer were much larger and much more varied, therefore, no interval appeared more than once.
** Do you think this program is accurate to .1 or .01 ... **
I believe that a is the most accurate answer. I think that if the timer were capable of measuring any more accurately, we wouldn't have seen certain intervals more than once in the first experience.
** Copy of a few lines of your spreadsheet from the TIMER program. **
timer experiment
event number clock time time interval
1 2.359375 2.359375
2 8.101563 5.742188
3 14.92188 6.820313
4 21.03906 6.117188
** **
20 min
** **
&#Good responses. Let me know if you have questions. &#