3-9-09

I walked into class a little late but ready to learn. As I sat down I realized it was my TPJ day and let out a sigh. Mr. Manning greeted the class and let us know how his bathroom project at home was working out for him. He continued with his lessen for the day which consisted of finishing the lab that we started the previous Friday. Having the prior two parts of the lab complete, our class set forth to finish the third and final part of the lab. This part consisited of changing the speed and radius of the swinger and keeping the force constent. This was difficult to do but our class managed with little difficulty. After completing that part of the lab we started to work on the graphs with partners. With my usual partner, Daniel, we graph all three graphs before running out of time. We needed to figure out which of the graphs were curved and the following day to square some of the data so all the lines would be straight. We then found out that the data was all curved and that all three graphs must be squared to become straight. During the lesson we learned that the speed relies directly off of the radius. As the radius increases the speed increases and as it decreases then the speed decreases. This knowledge can be used to allow us to know the forces that act on the object in motion. At the end of class the bell rang and the class was dismissed to enjoy a great Monday.

Data Table for Question 1
 * Centripetal Force || Speed (m/s) || Mass (kg) || Radius (m) || T * 20 ||
 * 0.61 || 5.05 || .0204 || .6444 || 16.05 ||
 * 0.83 || 6.03 || .0204 || .6444 || 13.44 ||
 * 1.10 || 6.55 || .0204 || .6444 || 12.36 ||
 * 1.40 || 7.30 || .0204 || .6444 || 11.10 ||
 * 2.00 || 8.98 || .0204 || .6444 || 9.02 ||
 * 2.80 || 10.05 || .0204 || .6444 || 8.06 ||