January+Homework+APC

= __**PS 2.7 Energy Diagrams + Gravitation**__ = In Wiley Plus do Chapter **15 Oscillation Intro Read with Checkpoints, Sims and ILW "**

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a. It involves reading Chapter 15 on oscillations and answering the Checkpoints on looseleaf (stamp Wednesday) (10 points)======

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b. It has Concept Simulations: try each of the online systems. Change physical values like mass, spring constant, length and gravity. Tell how these factors affected the frequency and amplitude of the oscillations of pendula and loaded springs. (40 points)====== [|Particle oscillating in simple harmonic motion] [|SHM block-on-spring, with and without damping] [|Conservation of energy in a spring-mass system] [|Pendulum motion] Stamp Thursday. It ends with 5 problems in the interactive learning ware 15.17 (50 pts c. Complete the problems on looseleaf in the interactive learninware. It will help you through, but show the solutions on paper. [|Interactive Learningware 15.17]

===The second test booster is available on the Physics of Iron Man's armor. Log-in to=== https://superfiles.wikispaces.com/. It can be used to boost any one test by half the points lost in quarter 2.

2 class questions answered ; 1. A neutron star is a type of [|stellar remnant] that can result from the [|gravitational collapse] of a massive [|star] after a[|supernova]. Neutron stars are the densest and smallest stars known to exist in the [|universe]; with a radius of only about 12–13 km (7 mi), they can have a mass of about two Suns. You can pick a mass and run a simulation at

[]

2. One way to form a black hole is after a star about 25 times more massive than our sun shrinks after going nova to about the size of the earth through gravitational attraction.  Once formed, it grows enormous by sucking in other stars. For the aize of a __known__ measured black hole... about 50 million miles across to the edge of the accretion level...... see []



= a. Finish the __online oscillations test__ by Monday night 11:59pm January 5th. = =// b. Lab2.6 on S // //prings// and // Lab 2.7 on Impulse // should be handed in by Weds. = =Electric Charge PS 3.1= a. Read Chapter 22 and do the checkpoints. b. Answer the following from the end of chapter 22;
 * OLD WORK #########################################

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‍Questions # 3,4, 5, 7. 8. 9 on page 548-9======

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‍Problems # 6, 9, 10, 20, 25, 35======


 * * * * S T O P H E RE OLD STUFF * * * * * * * *

**Midterm review:**
Our midterm is Monday Jan 27 in room 305 (room just changed) from 8:30 -11:30 AM. It will not take the full 3 hours (more like 2) You will get a full simulated AP-like Exam, but I will give you an hour on each part (instead of the standard 45 minutes) Multiple choice are not online. Use your orange review book for that. **You have 4 real AP C multiple choice to practice with.** Answers are here: =All the free response questions with solutions from 1998 to 2012 are posted by the college board at= [] Try some and score yourself.



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**Tuesday Jan 21**: Do the online gravity test from UTexas. Do not get help from or compare answers with others. It closes Weds night just before midnight. If there are any issues, ask me Weds in class. If you finish, start reviewing for the midterm. Try a real AP multiple choice exam #1-35 from 1998 using the orange problem book. I will provide answers online soon to score yourself. It should be 90 minutes with no formulas and no calculator. Another option for prep is to start making flashcards of key formulas we've used or derived.======

= Lab on Springs in Series & Parallel due Thursday = The 4 people who missed Monday's Oscillation test ( Judy, Nic P, Rouhin, Matt) will take it in class Weds during the double period while the rest of us do a lab. = PS 2.10 GRAVITY Ch 14  due Friday Jan 17 = Watch these 2 Gravity Videos from APlus Physics cover all the key topics we are doing this week Book work = 50 points
 * 1) Universal Gravitation
 * 2) Orbits and Kepler's Laws

page 396 #67E, 76E, 77P
Jan 22-24 is **midterm review** using the ORANGE AP problem book and Notes & Study page at MFrancesco.net. = = = = = = =PS 2.9 was the oscillations UTexas= = = ^^^^^ STOP HERE ^^^^^^^^^^^^^ Work over vacation:
 * c. There will be a 50 point Utexas on Gravity due in the CAI lab at the end of pd 3 on Tuesday Jan 21. **

//Test FIX: I found a mistake on my key to problem #4 on the rolling wheel.// //For those with 3 spins per second: velocity at B is 14 m/s and at C is 28 m/s// //I will check yours when you submit test corrections and adjust the grade.//

= Problem Set #2.8: Oscillating Objects:  = = Simple Harmonic Motion: Due Weds Jan 8 (the day after we return) = a. Read Ch 16 of our text book and answer the checkpoints #1 -4 {skip #5} b. From the back of the chapter 16, do the following problems page 392 #16E, 17E, 20P, page 394 #41E, 42P page 396 #67 E c. Test corrections from Rotation test #2.3 =Lab on pendulum from before Christmas must be handed in by Weds Jan 8=

Test Thursday on Oscillation. Bring UTexas password to class for the online component.
=Test on Oscillations Wednesday Jan 9= = =

=Week 4: Electric Charge= a) Midterm correction: must be done in class on Monday (50 pts) b) Read Chapter 22 and answer the checkpoints on looseleaf. (20 pts) c) 2 worksheets started in class (30 pts) Bring your textbook every day this week.

=Week 2: Chapter 14 on Gravitation=

page 84-9 #23&24
Test oh Oscillations and Gravitational Theory: See January Notes & Study pages Lab report on the position-time equation for an pendulum was handed in Jan3. =MIDTERM: Tuesday, Jan 22, Room 307 at 7:45 AM=
 * AP Physics C (Rm. 307) ||

Week 2:Gravity Week 3: Midterm Week 4: Ch 22: Electric Charge
 * 1) STOP HERE ##############################