Tuesday we will be doing a lab to investigate drag. Wednesday is a review day, and your test for Chapters 5&6 will be on Thursday 12/3.
On Monday we will talk about air resistance (drag) and terminal velocity. Homework is p. 179 #25, 26 , 53 (use the book equation for drag) and p. 176 #5-9, 11, 16-18, 20-22 (these are quick concept questions). Solutions are posted in the chapter 5 folder on google drive.
Tuesday we will be doing a lab to investigate drag. Wednesday is a review day, and your test for Chapters 5&6 will be on Thursday 12/3.
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Remember that your friction lab report is due by Wednesday. I am leaving at 10:50, so hand it in before then! Your analysis questions must be typed. The graphs can be plotted by hand or using EXCEL. Make sure you draw a best fitting line and identify what the slope of the best fitting line represents. Your free body diagrams can be hand drawn or computer drawn, but make sure all forces are clearly labeled, and match your equations.
The friction problem set is due Tuesday after Thanksgiving (12/1). Solutions have been posted in the google folder for both the example problems, and the book problems. Email if you get stuck and need some guidance. We will have our exam on chapter 5 &6 on Thursday 12/3 (just a heads up). Yesterday we talked about static friction, kinetic friction, and rolling friction. The friction slides are at the end of the presentation. Homework is p. 178 #17-23. Solutions are available in the chapter 5/6 folder.
Today we talked about mass, weight, and apparent weight. Homework is p. 178 #13-16. Solutions are available in the chapter5 folder.
Today was a work day to complete any unfinished assignments. Make sure you finish your test corrections, which are due on Monday!
Today we looked at some examples of Newton's first and second laws. Homework is p. 176 CQ #1, and p. 177 #1-12.
Answers to the first few problems: p. 177 #1-12 1.T1=86.7N; T2=50N 2. 94N at 58 degrees below the horizontal 3. 147N 4. 508N 5. a) ax=1.0m/s^2; ay=0 b) ax=1.0m/s^2; ay=0 6)ax=-0.28m/s^2; ay=0 7. a) ax=0.4 m/s^2 ay= 0 b) ax=0.8 m/s^2 ay=0 Today we practiced drawing free body diagrams, and then worked on the practice problems. Homework, due Thursday, is to do the odd numbered problems from the worksheet (Newton's Laws Cutnell). ***NOTE: Problems 3, 10, 11, 13, 17 have typos in the numbers. A corrected copy of the worksheet is available here. Answers are on the back of the worksheet. Solutions to selected problems are available in the CH5 folder.
Today we talked about Newton's First Law (law of inertia) and Newton's Second Law (F=ma). We began working on problems involving equilibrium, and Newton's 2nd law. Homework is to being working on the problems from the worksheet. We will have worktime in class tomorrow to work on this as well as additional problems. If you want to get ahead on homework, tomorrow's assignment is p. 148 #13-15, 18-20, 28-35, and the Worksheet all the odd numbered problems.
Today we began chapter 5 (despite what the slides say). We talked about forces, and free body diagrams. No homework tonight. You will have a sub and a work day tomorrow to practice drawing free body diagrams and calculating net force.
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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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