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 **
A list of 10 numbers with 2 rows.
** Your TIMER data from 20 fast clicks **
1 150.0625 150.0625
2 150.25 .1875
3 150.4219 .171875
4 150.625 .203125
5 150.8125 .1875
6 151 .1875
7 151.2031 .203125
8 151.3906 .1875
9 151.5938 .203125
10 151.7813 .1875
11 151.9688 .1875
12 152.1875 .21875
13 152.375 .1875
14 152.5781 .203125
15 152.7813 .203125
16 152.9844 .203125
17 153.1875 .203125
18 153.3906 .203125
19 153.5625 .171875
20 153.7656 .203125
21 153.9688 .203125
22 154.6563 .6875
** Your average time interval for 20 time intervals **
.1953125
I used my excel program to add them the divided by 20.
** Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
0.171875, 2
0.1875, 7
0.203125, 10
0.21875, 1
** Your general comment to this point **
** Why did you observe only certain time intervals? **
No measuring tool is perfect. There could be errors coming from my mouse or my PC speed could affect the results. The timer is not useless. The sig fig numbers are more then likely rounded which appears to give us the same number repeatedly.
** What did you see when you looked at the differences between time successive time intervals? **
The numbers are very close. I don't know the answer to the second part of this question.
** Your time intervals for 7 complete breaths: **
3.46875
4.421875
4.59375
5.375
5.109375
5.015625
4.984375
5.875
5.234375
** Your general comment to this point: **
I stayed relaxed and breathed in that relax mode. I did not breath as slow as I could. That is not relaxed.
** Why did you rarely, if ever, observe that same time interval twice? **
Breathing is rarely regular when concentrating on controlling it.
** Do you think this program is accurate to .1 or .01 ... **
d. The TIMER program is capable of determining the time between two events accurately to within about .0001 second.
This is the significant figure used that measured same numbers so that indicates this timer can only be accurate within that sig fig number.
** Copy of a few lines of your spreadsheet from the TIMER program. **
tmiing breath 10x
event number clock time time interval
1 35.04688 35.04688
2 40.28125 5.234375
3 46.84375 6.5625
4 51.51563 4.671875
5 55.07813 3.5625
6 61.71875 6.640625
7 70.375 8.65625
8 76.67188 6.296875
9 84.0625 7.390625
10 90.92188 6.859375
** **
1 hour
** **
The data I put on the spreadsheet is different then the data I used to answer the questions because I accidentally closed the timer program and had to redo the breath timing.
&#Your work looks very good. Let me know if you have any questions. &#