Today we continued working on rotational kinematics and also talked about angular acceleration and centripetal acceleration. Keep working on webassign!
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Today we went over the rotational kinematics equations, and began to use them to solve problems. Make sure you are working on the webassigns to practice these concepts.
Today we began talking about rotational kinematics. We learned about angular position, angular displacement, angular velocity, and angular acceleration. There is a webassign to practice these concepts.
FRQ Solutions to the momentum/energy test are available in the google drive folder. The MC answers are as follows: VA: VB: VC; VD 1. D; C; B; A 2. C: A: C; B 3. A: A: B; A 4. A: D; A; D 5. C; D; C; B 6. D; C; C; B 7. C: D; D; D 8. C: B; C; A 9. B: B; A; C 10. D: D; D; B 11. B: A; C; D 12. C: B; A; A 13. D: C; A; E 14. D: A; A; B 15. D: C; E; B 16. A: B; A; E 17. D: C; E; C 18. B: E; A; C Today we did group test corrections/discussion of the free response questions. After the break you will do test corrections for the multiple choice questions!
Tomorrow's test covers work, energy, power, and impulse/momentum as well as conservation of energy and conservation of momentum. The topics you should be familiar with are listed below (although I cannot promise that this is an all-inclusive list):
Topics: Be able to define a system and determine if it is isolated. Identify internal and external forces Define work and calculate work done by a force Apply relationships between work, net force, displacement, velocity, and energy to solve problems Calculate the power of a system Identify and calculate the mechanical energy of a system including gravitational potential energy, kinetic energy, and elastic (spring) potential energy Identify the change in thermal energy of a system when friction is present in the system Apply conservation of energy to analyze energy transitions and transformations within a system Analyze the relationship between work done on or by a system, and the energy gained or lost by that system Use Hooke’s Law to determine the elastic force on an object Calculate a system’s elastic potential energy Calculate the work done by a variable force from a force vs. displacement graph Define and calculate the momentum of an object Understand the relationship between impulse and change in momentum (Impulse Momentum Theorem) Analyze situations involving average force, time, impulse, and momentum Today I handed out practice tests to help you prepare for the test on Tuesday. The test covers work, energy, conservation of energy, impulse, momentum, and conservation of momentum. The solutions to the practice tests are in the google drive folder (for energy) or click the links below.
Energy Practice Test (solutions at the end) Momentum Practice Test Today we did several review problems for the test on Tuesday. Some solutions to the problems we have been working: More will be added, so check back.
Conservation of Energy WS and concept questions Work and Energy Review Problems AP practice problems energy and momentum (solutions guide) work energy quiz Your unit test will be on Tuesday 2/13. Today you investigated the behavior of springs and verified Hooke's Law. You also determined how the behavior of a spring changes when it is used in combinations (series and parallel) with another spring. The labs (ballistic pendulum, and Hooke's Law) are due by Monday 2/12.
Today you gathered data for the ballistic pendulum lab. Your lab writeup is due Friday 2/9. NOTE: you do not need a procedure for this lab, but you do need a labeled sketch!
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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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October 2018
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