Tuesday, September 30, 2008

Online Assignment

For today's class, instead of physically going to class, Dr. E assigned a project online. The project that was assigned consisted of putting weights on a spring and watching the spring bounce up and down and observing the gravity of the weight. For the first trial run, I put the red weight on the spring marked 3 and timed to see how long it would take for the red weight to come to a stop. It took the red weight almost twelve seconds to come to a complete stop. While I was timing the red weight, I not only watched the weights movement but I also watched the gravity that showed an energy of three. For the next trial I took the 250 pound weight,placed it on springer 2 and observed its motion. For the 250 pound weight it showed no energy movement because when I began I chose the option of, only show energy of three. I did however observe that it took almost nine seconds for the weight to come to a complete stop. I then chose to try the 100 pound weight and placed it on springer one. The 100 pound weight did not show any energy level because once again it did not have energy of three. I observed that it took eleven and a half seconds to come to a complete stop. Finally, I chose the 50 pound weight and placed it once again on the springer 1, this time I was very shocked to see that it took almost twelve seconds for the 50 pound weight to come to a stop. The reason I found this complete odd was because it took longer for the 50 pound weight to come to a stop then the 100 pound weight; if I could have guessed, I would have hypothesized the complete opposite. For the experiment there were several different options that one could choose from and I chose for time to be 1/4 and for the place to be earth. This experiment was very interesting and fun to do. I will definitely have to keep this experiment in mind when I am planning science experiments for my students. I think that young students would get a thrill out of this experiment!

1 comment:

Cathy Ezrailson, Science Education, University of South Dakota said...

Nice blog posts, Sarah. Check out D2L for the background info on Springs and Forces. Keep up the good work.