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 **
With each click the corresponding time is recorded and the time from the last click is recorded.
** Your TIMER data from 20 fast clicks **
1 130.4688 130.4688
2 130.6406 .171875
3 130.7969 .15625
4 130.9219 .125
5 131.0469 .125
6 131.1719 .125
7 131.2969 .125
8 131.4219 .125
9 131.5938 .171875
10 131.8438 .25
11 132 .15625
12 132.125 .125
13 132.25 .125
14 132.4063 .15625
15 132.5469 .140625
16 132.7188 .171875
17 132.8438 .125
18 132.9844 .140625
19 133.125 .140625
20 133.2656 .140625
21 133.4063 .140625
** Your average time interval for 20 time intervals **
0.146875
I tallied each interval and multiplied it by the number present. I added these numbers together and divided by 20.
** Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
.125, 8
.140625, 5
.15625, 3
.171875, 3
.25, 1
** Your general comment to this point **
** Why did you observe only certain time intervals? **
I think the timer has set intervals that it selects when closest to that time. The timer isn't useless but it isn't perfect either.
** What did you see when you looked at the differences between time successive time intervals? **
The differences between the time intervals are also of only a few intervals.
** Your time intervals for 7 complete breaths: **
5.953125
5.65625
5.90625
5.53125
5.59375
6.46875
5.5
7.03125
6.25
** Your general comment to this point: **
My slow breaths were much faster than those listed in the example.
** Why did you rarely, if ever, observe that same time interval twice? **
When trying to go as fast as possible, you can only go so fast. Whereas breathing slowly can take place over many times and can fluctuate much easier. It's much harder to keep constant.
** Do you think this program is accurate to .1 or .01 ... **
I think the answer is c because the difference intervals given earlier started to repeat around this decimal point.
** Copy of a few lines of your spreadsheet from the TIMER program. **
5.953125
3 693.3906 5.65625
4 699.2969 5.90625
5 704.8281 5.53125
6 710.4219 5.59375
7 716.8906 6.46875
8 722.3906 5.5
9 729.4219 7.03125
10 735.6719 6.25
** **
15 minutes
** **
I had issues opening the file in excel. I could get it to open in notepad, but it wouldn't show up in the open menu for excel.
The spreadsheet isn't essential but can be very useful. Send me a copy of the following two lines along with your response:
'When I saved the file from the TIMER program it would not open in my spreadsheet program. I got it to open in notepad but nothing else would work.'
What spreadsheet program are you using?