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 moves up in both tube but more in the vertical tube. When the bottle is held, the temperature increases making the water rise in both tubes. The reactions in both tubes are proportional.
** Length of the air column in units of your measuring device: **
I chose the least reduced form because although it lacks accuracy in measurement it is larger and prevents having to tape rulers together which could add more inaccuracy.
** 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. **
43cm
I measured from the meniscus to the end of the air column at the capped end of the tube.
** 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. **
10cm
35cm
10,10.2
10,10.25
10.1,10.3
9.9,10.15
10,10.2
The measurements on lines 3-7 are the changes in the length of the air column as the water in the vertical tube reaches the first mark.
** 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. **
10cm
35cm
9.95,10.4
10,10.5
9.95,10.45
10.05,10.5
10,10.4
The data in lines 3-7 is cm and measured as before and after changes in the length of the air column when water is squeezed up the vertical tube to the second mark or 20cm.
** 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. **
10cm
35cm
9.9 10.7
9.95,10.7
9.9,10.7
10,10.8
10.10.85
The data in lines 3-7 is cm and measured as before and after changes in the length of the air column when water is squeezed up the vertical tube to the third mark or 30cm.
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1
&#Good work. Let me know if you have questions. &#