Answers to the Semester 1 Review Questions

There was an error in this post originally.  I've corrected it.  number 24 should be "d", not "e".

1.d 2. d 3.a 4.c 5.a 6.ad 7. bc 8.ab 9.c 10. c
11. a 12.d 13.d 14. d 15.c 16. c 17. b 18.a 19.c 20.c
21. c 22.c 23.b 24.d 25.c 26.c 27.d 28.a 29.c 30.b
31. d (What a painfully worded question.  No double negatives on the real test.) 32.b 33.c

Study hard.

Reviewing

I'll pass out review questions and a summary of major topics in class next week.  In the mean time you can use quest to make a customized review set of questions, focusing on all of the homework questions that you missed the first time around.  Follow these steps  (copied from their help menu)

• Customized Review 
• To help you review for an upcoming test, use the Custom Review option to create customized reviews that focus on your weakest areas. Choose Grade Summary from the left menu, then the Grades by Subject Area link to see the Custom Review option.  

(My caveat:  While this has worked in years past, they do have a new interface now.  I don't interact with the program the same way that students do, and when I tried this it didn't work.  Of course, I haven't  missed (or worked) a single problem in Quest this year, so the problem might be as simple as this.  It can't hurt to give it a try.)

Mistake in homework due date time.

I just changed the homework to be due Monday night at 10:00.
I don't know how I managed to make the assignment due at 4:00 in all three classes.  I almost think that it might be a glitch in their new software.  Please pay attention to the posted deadlines and alert me if they seem off.  I will try to do so too.
Thanks

Momentum in 2D lab revised expectations

I didn't expect the data analysis section of the lab being as hard as it was.  Due to time constraints, I'm going to alter the lab expectations.  You still need to write the background section, conclusion and error analysis, but I have created and analyzed a set of data - calculations and vector diagram.  You may use mine.  I'll have it for you on Monday.  If you've already done the data analysis on your own, you can use your own and get 5 extra credit points.

Requirements for Momentum in 2-D lab

Lab Report
Background

• Momentum, Conservation of Momentum, How to add vectors, What assumptions are we making?

Method:

• Diagram

Data:  (no graphs this time)

• Data Table
• Vector diagrams with vector addition (2)
• Calculations (lots)  show and explain your work

Conclusion:

• Was momentum conserved?
• How convincing was your evidence?

Error Analysis:

• How well did we achieve our assumed conditions?
• How closely could you make measurements?  (mass, velocity, angle)
• How closely could you make drawings, calculations?
• How did these these limitations affect your interpretation of the results?
• What was your percent errors?

Unit 5: Energy, Momentum and the Conservation Laws

Goals
1.Define and determine work, energy and power.
2.List a variety of types of energy and classify them as potential or kinetic.
3.Solve problems using equations for gravitational potential energy and kinetic energy.
4.State and apply the law of conservation of energy.
5.Account for energy in its various forms through a series of transformations, including energy “lost” to heat.
6.Define impulse and momentum and describe how they’re related.
7.State the law of conservation of momentum and use it to solve problems in one and two dimensions.
8.Classify collisions as completely elastic, completely inelastic or somewhere in between.

Homework Assignments are due Sunday Jan 13, and on Wednesday January 23.

A lab report will be due on Thursday Jan 17th.

we will have two days to review for the final at the beginning of February.