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Phy 232
Your 'measuring atmospheric pressure' 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 comment **
** How does the system behave and how does it 'feel'? **
When the bottle is squeezed, the water in the vertical tube rises greatly compared to the pressure tube.
** Length of the air column in units of your measuring device: **
1.5units:1cm, for simplicity. It was easy to apply and easy to measure.
** Your report of the vertical position of the first mark relative to the water surface of the first mark, the length of the air column in units of your selected measuring device, and the two meniscus positions observed with each of your five trials. **
The air column is (42 units )*(1 cm/1.5 units) = 28 cm long.
** Your report of the vertical position of the second mark relative to the water surface of the first mark, the length of the air column in units of your selected measuring device, and the two meniscus positions observed with each of your five trials. **
20
42
.6, 1.6
0, 1.3
.1, 1.1
0, 1.1
0, 1.1
Followed the instructions as they were written; measurements appeared fairly consistent.
** Your report of the vertical position of the highest mark relative to the water surface of the first mark, the length of the air column in units of your selected measuring device, and the two meniscus positions observed with each of your five trials. **
30
42
-.25, 1.25
0, 1.4
.2, 1.7
.4, 1.8
.4, 1.8
Followed instructions; fairly consistent.
** Your report of the vertical position of the 'in-between' mark relative to the water surface of the first mark, the length of the air column in units of your selected measuring device, and the two meniscus positions observed with each of your five trials. **
40
42
0, 2.3
0, 2.1
0, 2.1
0, 2.1
0, 2.2
Followed Instructions; results much more consistent.
** **
** **
45 minutes.
&#This looks good. Let me know if you have any questions. &#