PHY 201
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 **
I see three columns. The first column contains the numbers 1 - 10. The second column contains the time interval between clicks. The third column is the difference in time intervals between clicks.
** Your TIMER data from 20 fast clicks **
1 1.234375 1.234375
2 1.375 .140625
3 1.515625 .140625
4 1.6875 .171875
5 1.84375 .15625
6 1.984375 .140625
7 2.125 .140625
8 2.265625 .140625
9 2.390625 .125
10 2.53125 .140625
11 2.671875 .140625
12 2.796875 .125
13 2.9375 .140625
14 3.0625 .125
15 3.203125 .140625
16 3.328125 .125
17 3.460938 .1328125
18 3.578125 .1171875
19 3.710938 .1328125
20 3.851563 .140625
** Your average time interval for 20 time intervals **
0.19273
This is longer than all of your quick-click intervals. This can't be the mean of the quick-click intervals.
However the 1.234375-second interval at the beginning is not a quick-click interval, and I think this is the source of the error.
To get this answer I divided the total time which was 3.851563 by the number of clicks, which was 20.
** Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
.140625, 10
.125, 4
.171875, 1
.15625, 1
.1328125, 2
.1171875, 1
1.234375, 1
** Your general comment to this point **
Is there any way to get the timer to not start before I make my first click? The time for my first click was 1.2 only because the timer program starts counting as soon as the program loads, not when I make my first click.
** Why did you observe only certain time intervals? **
No, it isn't useless. I believe the program has rounded values in it that it uses more when numbers are close to that number.
** What did you see when you looked at the differences between time successive time intervals? **
Sometimes the timer program will put in a negative for no reason.
** Your time intervals for 7 complete breaths: **
3.320313
6.132813
6.789063
6.34375
7.023438
5.976563
7.5625
6.117188
6.398438
6.5625
** Your general comment to this point: **
I understand now about the first time. We will always disregard it because it continues to run the time, even after we initialize it again.
** Why did you rarely, if ever, observe that same time interval twice? **
Because the greater the distance between the intervals, the less likely they are to be the same. There is more room for the intervals to be different numbers.
** Do you think this program is accurate to .1 or .01 ... **
b. The TIMER program is capable of determining the time between two events accurately to within about 0.01 second.
** Copy of a few lines of your spreadsheet from the TIMER program. **
1 1.851563 1.851563
2 5.171875 3.320313
3 11.30469 6.132813
** **
10 minutes (not included the time it took to fix the timer. I had to use the last solution to fix it)
** **
&#Good work. See my notes and let me know if you have questions. &#