phy 122
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 **
i had a lot of problems getting the set up right for this experiment
** How does the system behave and how does it 'feel'? **
the harder i squeeze the more the water moves
** Length of the air column in units of your measuring device: **
i am using a cm ruler. i think it is the most accurate
** 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. **
28cm of air in the tube
i held the ruler up to the hose and measured the air space
** 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
9.5cm
9.5cm;10.5cm
9.5cm;10.2cm
9.4cm;10.8cm
9cm;11.5cm
9.4cm;11.1cm
i measured the movement of the water to see how much the pressure affected it.
** 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. **
9.8cm;10.2cm
10cm;10.3cm
9.6cm;10.3cm
9.6cm;10.4cm
9.7cm;10.6cm
** 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. **
9.8cm;10.9cm
9.5cm;10.7cm
9.7cm;10.4cm
9.8cm;10.5cm
9.6cm;10.7cm
** **
** **
4 hours
You appear to have reasonable data. You will continue the analysis of your date in the next experiment.