What did I learn in physics this semester? Well.......physics? Haha, that's the obvious answer, I guess. In first quarter, we learned all about 1D and 2D kinematics (the study of motion). Later, we also learned about Newton's three laws of motion, momentum, and energy. Aside from the actual physics, I learned other things as well. I learned that it is best not to procrastinate on anything for class, like PAs, labs, or take home tests. Occasionally throughout the semester, I found myself procrastinating, and all it brought was stress. It's always best to try to start homework early, especially because Mr. Blake usually gives it to us a while in advance. Also, I learned how to better collaborate with people in my class, which we had to do a lot this semester for group labs. Finally, I learned that learning physics isn't that bad, especially because everything we learn is pretty much applicable to some aspect of real life. Also, it can be easy to understand since we're able to see real examples, such as dropping a bowling ball on the ground (that's always fun :). All in all, I learned a lot in physics this semester, and I'm looking forward to getting this final done and starting next semester fresh.
Sunday, December 11, 2011
Sunday, December 4, 2011
Blogpost #15
This week we learned about energy. My roommate is shown above, standing on her bed. She is about 62 kilograms, and the bed is about 0.5 meters above the ground. I can determine her gravitational potential energy by using this information. The formula is PEg=mgh, which is mass times gravity times height. Therefore, her potential energy is 62 kg(0.5 meters)(10 m/s2), which comes out to 310 Joules. If she fell to the ground, her potential energy would gradually change to kinetic energy. However, when she stopped at the ground, her potential energy would be 0 J.
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