Purpose:

The intent of this lab is to invent a correlativity between that of the information we have collected from our experiment and compare it to that of theory. In this experiment 3 different trials were done in order to prove this theory. The first trial was to bind a balloon on the terminal of a manometer and step the force per unit area at different deepnesss in a big beaker filled with H2O. The following trial was the same thing. but without the balloon on the terminal of the manometer. For the concluding trial a force per unit area gage was used to mensurate the force per unit area at different deepnesss in the H2O. The informations collected from each experiment was the deepness of the object and its warp. To happen out the theoretical force per unit area for the experiment this equation will be used: ?P=?H2O?Depth

The theoretical consequences will so be compared to the measured consequences. finding the correlativity between both sets of informations in order to turn out whether or non this experiment is capable of turn outing the theory.

Procedure:

1 ) Fill the cylinder with H2O and adjust the manometer to read nothing. 2 ) For first trial tie a balloon to the terminal of the tubing that gives the manometer reading. and make full it with air. 3 ) Immerse the balloon in the H2O and step the warp at each particular deepness ( Try to acquire every bit near as you can to: 11. 9. 7. 5. 3. and 0 inches ) . 4 ) When finished with the first trial take the balloon and continue to 2nd trial. 5 ) For the 2nd trial immerse the ( balloon loose ) manometer tubing in H2O. besides mensurating each particular deepness and warp. 6 ) For the 3rd trial alternatively of mensurating with the manometer use a force per unit area gage to mensurate your warp ( do certain you set the gage to zero before proving ) .

Calculations:
Test # 1 Example
Depth: 3. 5 inches
Deflection: 1. 7 inches
P. Theory: ?H2O?3. 512=18. 2lbft2
P. Measured: 1. 712??Manometer??H2O=16. 9lbft2

Test # 2 Example
Depth: 5 inches
Deflection: 2. 1 inches
P. Theory: ?H2O?512=26lbft2
P. Measured: 2. 112??Manometer??H2O=20. 8lbft2

Test # 3 Example
Depth: 3 inches
Deflection: 1. 8 ozin2
P. Theory: ?H2O?312=15. 6lbft2
P. Measured: 1. 812??Pressure Gauge??H2O=17. 9lbft2

?H2O=62. 4 lbft3
?Manometer & A ; ?Pressure Gauge=1. 91 lbft3

Analysis and Decision:

Overall I think consequences of this experiment turned out reasonably good. From looking at the graph I noticed that as we moved on to the 2nd and 3rd trials at that place seemed to be less and less mistake. In general I think that human mistake had a immense impact on this lab. If we could hold done a few tests for each trial I think that the result of our mensural consequences would be a batch closer to those of the theoretical consequences.

What we were trying to make with this lab was take the theoretical consequences of our experiment and acquire them every bit near as we could to the measured consequences with small percent mistake in order to find if this trial was dependable. By comparing some of the consequences I can safely state that this trial is valid. Some of the information comparings are far away. but others are within 2 per centum mistake and I know for a fact that better consequences can be acquired.