(This lab was already posted but I accidentally put it on a different blog. Now that I understand how blogger works a bit more I am re-posting it where all my other blogs are at just to have it in the same place as the others. Thank you)
Free Fall Lab
Free Fall Lab
Carlos Hernandez , Dhalia Tran, Ariel De Leon
September 5 and 7, 2016
2). This lab consists of two parts, the first of which involves using a spark generator and tape to find the acceleration of gravity. It also will get us thinking on our margin of error and why, that is where part two comes in. In part two of the lab we will begin to think about, understand, and solve for errors and uncertainty.
3 ). So in this lab like stated above we will be solving for, verifying for, gravity. Using a spark generator and a tape, about 1.5m long, we will be able to pinpoint the exact position and time that a magnet (of unknown mass, it isnt needed) takes to fall . The spark generator will shoot electricity between the magnet and the metal rod where in between is the tape which will end up marked with small dots where there electricity struck every 1/60th of a second. Once we had our data on tape strip we began to measure the distance between each dot. Obviously it increased with time as it was accelerating downward to to G. We then input our values of our change in distance and the mid interval time which were of coarse both known. After finding our Value for G , As a class we got every groups value for G . Thee were a total of 7 different G values. The prof. gave us an explanation on what dev from the mean is . Using this simple understanding we found out how off were we from the average. The average of G was 956 which probably isn't too good of a reference of an average but the concept was understood. We then began to work with the standard deviation. Which is a formula very similar to uncertainty. With this . We understood how deviations work and averages come into play in
4) Besides all the stuff stated above , there is something very important that has been learned in this lab and that is understanding LABS. Labs aren't always perfect and one needs to always put into account why data might be faulty or off. The problem isn't the lab , it would become a problem if we don't state it or understand what outside "forces" might affect the data. Cheers, below will be pictures of instruments used for the lab and the excel graphs as well as other stuff.
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