measuring atmospheric pressure

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'? **

The water rises in the vertical tube in response to the pressure change of the interior of the bottle; however, the corresponding change in the pressure indication tube is very slight in comparison.

** Length of the air column in units of your measuring device: **

Single level reduction paper ruler.

** 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. **

48 units

I obtained the result by measuring from point of 0 to point of 48 units. I then found the difference to be 48 units in total distance.

** 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

39.8

39.8, 38.5

39.8, 38.5

39.8, 38.5

39.8, 38.5

39.8, 38.5

The data from each of the trails was remarkably consistent, which indicates that the atmospheric pressure relative to the measured system is reasonably stable.

** 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. **

39.8, 38.0

39.8, 38.0

39.8, 38.0

39.8, 38.0

39.8, 38.0

Again consistent results supporting the concept of relatively stable pressure.

** 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. **

39.8, 36.2

39.8, 36.2

39.8, 36.2

39.8, 36.2

39.8, 36.2

** **

39.8, 37.2

39.8, 37.2

39.8, 37.2

39.8, 37.2

39.8, 37.2

** **

2 and half hours

Good work on this part.