Today we tied up some loose ends regarding work and energy, and spent the rest of the period working on the review assignment. SOlutions to the review assignment are in the google folder. REMEMBER...Your test is tomorrow!
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Today we talked about Power. Homework is p. 331 #30-35. Solutions are posted in the google folder.
Remember that the chapter 11 test is on Tuesday. You should start the review assignment this weekend (p. 332-333 #41, 45, 47, 49, 56, 59, 63, 64. We will tie up any loose ends on Monday, so be prepared to ask questions about anything you are still having trouble with in this chapter. Today we talked about work and potential energy, conservative vs. non-conservative forces, and the relationship between potential energy and force. Homework is p. 331 #18-21, 29 36, 37, 40. I will post solutions as soon as I have them done later tonight. In the meantime, you can use the solutions manual (button is on the right of the screen).
Today we derived the work energy theorem and talked about how to calculate work for a variable force. Homework is p. 330 #9, 13-17. Solutions are in the google folder.
Today we talked about the concept of work and how to calculate the work that a force does on an object. We also learned how to compute a dot product of two vectors. Homework is p. 330 #1-8, 10-12
Today we finished the interrupted pendulum lab. Most groups were able to derive the correct equation for the placement of the peg. Some groups were able to test their predictions. If you were unable to test your prediction because you ran out of time, don't worry - that section will be extra credit. Tomorrow you need to hand in your labeled sketches (required), derivation with explanations (required), and data/percent difference calculations (extra credit).
Check out this website for AP Physics C review materials, including videos for many of the topics we will have covered by the end of the course http://learnapphysics.com/apphysicsc/index.html
Other review materials include test prep books (They're all pretty good. I have Princeton Review and 5 steps to a 5 if you want to borrow. ) Finally, some of the online MOOC's have AP review courses (which are free). I know edX.org has AP review courses for AP Calc AB, AP Chem, and AP Physics 1 (includes some of the topics we cover, but many others that we don't). I haven't seen one for AP Physics C yet, but will let you know when I do. Your scores for the momentum and energy test (ch 9/10) have been entered in family access. Your tests were scored using AP rubrics, and then scaled accordingly. Your raw scores were then mapped to a "5", "4", "3", "2", "1" scale, which was converted to a gradebook grade as follows:
AP Score Gradebook 5 93 4 83 3 73 2 63 1 53 DO NOT PANIC if you are unhappy with your grade! You will have the opportunity to do test corrections after break and raise your gradebook grade. Reminder: your chapter 9/10 exam is on Thursday. It covers momentum and energy. Make sure to review everything that we covered: impulse, momentum, conservation of momentum, elastic collisions, inelastic collision, gravitational potential energy, kinetic energy, elastic potential energy, hooke's law & spring forces, conservation of energy, energy diagrams. Here are some problems you can do to help you prepare:
p. 263 # 30, 31, 35, 46 (momentum) and p. 297 # 38, 39, 42, 44, 49, 51, 53, 54 (energy). Solutions are posted in the google folder. Today we finished chapter 10 by talking about elastic collisions, and energy diagrams. Homework is p. 297 #25-32. Solutions are posted in the google folder.
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REMINDERs:Chapter 2 test retake is Monday 10/15. You can take the retest either before school or after school, but you must complete all of the Chapter 2 homework (75% completion on each assignment) to be eligible for a retake!
Resources:Review videos - excellent videos covering all AP Physics C content.
Viren's Videos (another good source of videos) Study guides/review guides by topic. Archives
October 2018
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