We have started talking about waves, which is covered in chapters 16 and 17 of your book. Please make sure you are doing the webassigns for this chapter (there is only 1 so far...)
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Today we worked on simple harmonic motion practice problems. The solutions are available in the google drive folder for the chapter. Please score your homework (in a different color pen) to let me know how you are doing with this concept. I WILL collect this tomorrow!
On Friday we went through the webassign problems together. Please make sure you try them again on your own later to make sure you can do them.
Today we looked at the dynamics of a mass spring oscillator, and then we analyzed it from an energy perspective. Please try the webassign problems, and come to class with questions tomorrow!
Today we started talking about simple harmonic motion by examining a cart and spring system. You should start the webassign, but there will be several problems you won't be able to do because we did not get through all of the material.
Test corrections are due tomorrow! For the multiple choice you must show me how to get the correct answer for problems that involve calculations. For concept problems you must explain why the answer you chose is wrong IN TERMS OF PHYSICS CONCEPTS. For Free Response Problems, rework the problem ENTIRELY to show the correct solution.
Correct Answers to the MC: Ver C: 1. A 2. D 3. A 4, B 5. D 6. C 7. C 8. C 9. D 10. B 11. D 12. C 13. D 14. D 15. D Ver B: 1. C 2. B 3. A 4. A 5. C 6. D 7. B 8. B 9. C 10. D 11. B 12. A 13. B 14. D 15. B Here is the powerpoint that we used to review for the test. There are still several questions that we didn't get to in class. If you run the powerpoint in presentation mode, you can answer the question first, then check your answer. For those of you who can't run powerpoint, here is a pdf version, but the answers are on each slide.
Today we finished the rotation unit by talking about angular momentum. Make sure you are working on webassign.
Today we talked about rotational kinetic energy. You should be working on webassign 9.2 and 9.3. The webassigns are not in order, so look for the numbers.
Today we looked at Newton's 2nd law for rotation, and learned about moment of inertia. Continue working on webassign - practice is the only way you are going to learn these concepts.
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Reminders:
Chapter 2 test retake is Wednesday 10/17. 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:
If you want to review topics, you can find excellent videos here.
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