OMSI Opportunity on Monday, 12/17

Lincoln students and their families have the opportunity to go to OMSI for free (w/ student ID) on Monday 12/17 from 6:00-8:00 pm.  There is a special exhibit called "Race:  Are We So Different?"  You can get extra credit for this class by writing a 1-2 page summary of what you see at the exhibit and what you think about it.   After you see the exhibit on race, go to the Turbine Hall and see the cool stuff they have on Physics!

Answers to Chapter 4 Worksheet and Chapter 4 Review Sheet

Chapter 4 Worksheet

1. a-f do in class
2. a) 23.8 N, b) 7.73 N
3. a) see in class b) 30.0 N left c) 330. N up d) 331 N at 84.8 degrees left and up from horizontal
4. 23. m/s^2
5. 1.4 m/s^2
6. 14 N
7. 2.1 kg
8. 37 N
9. Fa = 3.6 N, Fb = .4 N
10. 98.1 N
11. 51.0 kg, 112 lbs
12. mass stays the same, weight decreases
13. -4.2 m/s^2
14. 5 kg
15. a) 981 N, b) 640 N
16. 730 N
17. 3.73 m/s^2
18. 0.444
19. a) -.981 m/s^2 b) 29.4 m
20. 68 degrees 

Chapter 4 Review Sheet Answers:
1.  430 N
2.  20.0 kg
3.  52.0 kg
4.  477 N
5.  a)  57.9 N    b)  23.5 N    c)  3.9 N
6.  6786 N
7.  -1.48 m/s^2
8.  49 N
9.  250 N
10.  51 N
11.   a)  -.981 m/s^2    b)  98.5 m

The Week of 12/10-12/14

This week you have an inquiry lab (Air Resistance Lab) to complete and a test (Chapter 4) to take. 

• Mon 12/10:  Check off problem #18 on Chapter 4 Worksheet.  Reminders about Air Resistance Inquiry Lab.  Work on Chapter 4 Review (answers to be posted later).  SPARK lecture on pediatric nephrology at 3:30 in room 169.  Bring in your Air Resistance Lab for peer editing tomorrow.
• Tues/Wed 12/11-12/12:   Peer editing of Air Resistance Lab.  Go over Chapter 4 Review sheet.
• Thurs/Fri 12/13-12/14:  Turn in Chapter 4 Review.  Take Chapter 4 Test.  Turn in Air Resistance Inquiry (make sure you get it in to me by 2:00 pm Friday!)

The Week of 12/3-12/7

• Mon 12/3:  Check off HW probs 10-17 (14 is extra) from Chapter 4 WS.  Slipping and Sliding Lab.  Explain and do it.  Lab due Thurs/Fri.  SPARK lecture on Engineering today at 3:30 in room 169.
• Tues/Wed 12/4-12/5:  Go over 2nd part of Slipping and Sliding Lab.  Do Problems 18+19 on Chapter 4 WS for homework.  Introduce Air Resistance Lab and do pre-write.  (pre-write must be completed before you do this lab on Thurs/Fri).
• Thurs/Fri 12/6-12/7:  Turn in Slipping and Sliding Lab if not already.  Do probs 18+19 of Ch 4 WS.  Get your pre-write for Air Resistance Inquiry checked off, then collect data.  Start processing data when finished.  Completed Lab Report due next Tues/Wed 12/11-12/12.  Hand out Chapter 4 Review.  Test next Thurs/Fri 12/13-12/14.

The Week of 11/26-11/30

This week we are having FLEX schedules on Tuesday and Wednesday, so come in for test corrections on the Chapter 3 Test!

• Mon 11/26:  More on forces and Newton's Laws.  Chapter 4 Problems 1-9 for Tues/Wed.
• Tues/Wed 11/27-11/28:  Check off Problems 1-9.  Finish Newton's Laws.  Newton's Laws Lab.  Mass vs. Weight.  Problems 10-14 on Chapter 4 Problems for Thurs/Fri.
• Thurs/Fri 11/29-11/30:  Check off 10-14 and go over.  Friction.  Slipping and Sliding Lab.

Parent-Teacher-Student Conferences: Please Read!!

As you know, Parent-Teacher-Student Conferences are coming up next Monday and Tuesday. I want you to know that I will not be there for the morning session on Tuesday because I will be meeting with the teachers of my own kids acrosss town. Generally that doesn't take the whole morning session and I arrive at Lincoln by 10:15 or so, but I definitely won't be there at the beginning. Thanks for your understanding. I look forward to meeting with many of you next week!

The Week of 11/13-11/16

Quarter Grades are updated.  Check them and let me know on Tuesday if you have questions.

• Tues/Wed 11/13-11/14:  Questions of Chapter 3 Review?  More on Forces.  Free-Body Diagrams.  Newton's 1st and 2nd Laws.  Homework:  Problems 1-3 on Chapter 4 Problems.
• Thurs/Fri 11/15-11/16:  Turn in Chapter 3 Review.  Take Chapter 3 Test.  Check off Homework and go over.  Continue with Newton's Laws.  Problems 4-6 for next time.