phys 202
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 a series of numbers that repeated and some that only occur once
** Your TIMER data from 20 fast clicks **
2 343 .21875
3 343.1563 .15625
4 343.3125 .15625
5 343.4688 .15625
6 343.6406 .171875
7 343.7813 .140625
8 343.9375 .15625
9 344.0938 .15625
10 344.25 .15625
11 344.4063 .15625
12 344.5625 .15625
13 344.7188 .15625
14 344.875 .15625
15 345.0313 .15625
16 345.2031 .171875
17 345.3594 .15625
18 345.5156 .15625
19 345.6875 .171875
20 345.8438 .15625
21 346.0156 .171875
** Your average time interval for 20 time intervals **
.16171875
I added all of them up and divided by 20
** Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
.140625,1
.15625,14
.171875,4
.21875,1
** Your general comment to this point **
** Why did you observe only certain time intervals? **
I do not believe it is flawed, but it may round to a certain digit that has already occured
** What did you see when you looked at the differences between time successive time intervals? **
I see that some of the numbers are negative and some are positive. Also some are repeatitive. This may be due to the timer and how it determines what to round each number to.
** Your time intervals for 7 complete breaths: **
2.390625
2.4375
2.488281
2.503906
2.78125
2.878906
2.957031
3.082031
3.144531
3.238281
** Your general comment to this point: **
** Why did you rarely, if ever, observe that same time interval twice? **
I think this happened because the time difference between breaths is not as uniform and repetitve so it will not have numbers reoccuring more than once, but when we clicked quickly there was more of a chance that the number would occur twice
** Do you think this program is accurate to .1 or .01 ... **
The TIMER program is capable of determining the time between two events accurately to within about .001 second. I believe that after 3 digits it may round up or down, or it may not have the accuracey to record more than three digits
** Copy of a few lines of your spreadsheet from the TIMER program. **
timer experiment
event number clock time time interval
1 669.2852 669.2852
2 672.1641 2.878906
3 674.6016 2.4375
4 677.5586 2.957031
** **
25 minutes
** **
&#Very good work. Let me know if you have questions. &#