Lect09 - Physics 211 Lecture 9 Energy and Friction...

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Physics 211 Lecture 9, Slide 1 Physics 211 Lecture 9 Today's Concepts: Energy and Friction Potential energy & force Homework Problem
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Physics 211 Lecture 9, Slide 2 Learning fun physics Cool demonstrations are the Reason to wake up -A scientific haiku I think the course is going pretty well. I really like it (except for the fact that my lecture is at 8am). This is the first time I've been in a calculus-based physics class and I've had quite a few moments where everything just clicked perfectly! Some of the homework problems are pretty tricky though. I definitely have to think about them. I suppose I'll really get a good idea of how the course is going after the first exam. its going well, I feel like we tend to do much harder things in hw than we do in class exampl wise, maybe thats on purpose but at the same time it is frustrating because i would rather lear a few techniques about how to do a problem than to do easy ones and wonder when i learned what the hard questions are asking The course is going good, I just end up spending a lot of time on smartphysics because I get stuck on a lot of the homework problems, because I don't know how to manipulate equations to fit the solution i need. I understand all of the concepts completely while going through them in lecture, but I can't seem to get the right answers for the homework. Maybe more equation-solving integration in the lecture would help some comments about the course its going ok, now that im getting help at office hours
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Physics 211 Lecture 9, Slide 3 I think the class is really good and smartphysics is really helpful but sometimes the examples that smartphysic give is too simple comparing to the questions asked in homeworks and it can be hard to understand or figure it out how to solve the homework problems. Personally, I think that more questions on the homework assignment would help me better because I would remember the steps more clearly with more practice; and the extra problems would stress me into learning better. Go through some of the H/W Questions. The stuff taught in lecture and prelecture are simple enough, but some of the H/W problems are complicated.
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This note was uploaded on 01/27/2011 for the course PHYS 211 taught by Professor Liss during the Fall '08 term at University of Illinois at Urbana–Champaign.

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Lect09 - Physics 211 Lecture 9 Energy and Friction...

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