1. For the first 2 kinds of tanks:
a) Place the pressure gauge near the bottom of the tank. Use the faucet and the drain to change water level, observe and record how the pressure gauge reading changes according to the water level qualitatively.
b) With the tank at least partially filled so there is some water above the pressure gauge, change fluid density to gasoline: 700 kg/m3 . Record pressure gauge reading ______________kPa. Change fluid density to close to honey: 1400 kg/m3 . Record pressure gauge reading _______________kPa. Does the pressure double when the density of the liquid doubles? ________ Why/why not?
c) Repeat part b with the atmosphere turned off (i.e. place the tank in vacuum): For gasoline: 700 kg/m3 . Record pressure gauge reading ______________kPa. Change fluid density to close to honey: 1400 kg/m3 . Record pressure gauge reading _______________kPa. Does the pressure double when the density of the liquid doubles? ________ Why/why not?
d) Turn the atmosphere back on. With the tank at least partially filled so there is some fluid above the pressure gauge, record pressure gauge reading _____________kPa. Then change g from 9.8 m/s2 to 19.6 m/s2 and record pressure gauge reading _____________kPa. How does the pressure reading change? Explain the change.
