This page last updated 6:25 pm on Thursday, August 11, 2009.

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Class Information:

Section 1094. Send an email to the entire section.
Room: Physics 109
MTWTh 1pm-3:55 pm. Technically, students are only supposed to receive one five-minute break. Since it is difficult to sit through a 3-hour class, even a VERY well taught one, with lots of interaction throughout, I give two ten-minute breaks, and cover one (or two?) fewer chapter(s).

Syllabus:

You may want to "save target as" a file, rather than opening it directly.

1. Syllabus. Word. PDF.
2. Added 6/30 Revision to homework grading. Word. PDF.
3. Added 6/30 Test rewrite directions. Word. PDF.
4. Schedule. Includes some, but not all, due dates for HW & labs, and exam dates. Word. PDF.

Assignments:

1. Index card due during 2nd class meeting. See the syllabus for what information you should provide. 1 pt.
2. Homework Problems. Word. PDF.
3. Added 06/25. Knuckle widths Excel spreadsheet or PDF file for the Measurements lab. 
4. Added 06/30. Mistakes key for the Measurements lab. Word. PDF.
5. Added 06/30. Knuckle width data with correct answers. Excel. PDF.
6. Revised Saturday, July 18, 2009. Due Wed, July 22. Up to 3 pts of extra credit will be awarded to students who could give an example where friction does positive work on an object, thereby adding energy to it, rather than taking energy away from it. This was assigned on Thursday, July 16.
7. Added Saturday, July 18, 2009. Also due Wed, July 22. Up to 5 points of extra credit will be awarded to students who can calculate and prove what acceleration a train needs to have if its frictionless 45-degree inclined front end is to keep a block of mass "m" in the same location on the incline as the train accelerates across flat ground. (A problem taken from the Physics GRE when I took it in 1997.)
8. Revised Monday, July 27, 2009. Up to 5 pts of extra credit will be available to students who can prove that for equal mass objects that experiece a perfectly elastic, 2-D collision, with one object initially at rest will have the two objects moving at (usually) different angles relative to the original motion, and the sum of the two angles will be 90 degrees. Another way to say this: an object moves along the +x axis, collides elastically with an equal mass stationary object. After the collision, the first object moves at an angle (theta) above the +x axis, then the 2nd object will move at an angle (90degrees - theta) below the +x axis. Prove this. This assignment is due Monday, August 3.

Due Dates & Exam Dates

Homework                Lab             Exams

Homework

1. Set B: due Tuesday, June 30. Handed back Wed, July 1.
2. Set C: due Thurs, July 9.
3. (Optional assignment) Test rewrite for exam 1 due Monday, July 13.
4. Set D: due Wed, July 15. #51 was converted to extra credit, not mandatory.
5. (Optional) Test rewrite #2, due Thur, July 16. Ineligible questions are 1, 2, 4, and 5 part "a" (the yes/no questions only).
6. Set E: due Mon, July 20.
7. Set F: due Thursday, July 23.
8. Set G: due Wednesday. Some notes and hints follow. ESTIMATE YOUR SCORE. Skip #21. Numerical answers to questions 42 & 44 were given out in class. See me or a classmate if you didn't write the answers down. Other hints were provided to questions 18 and 22 during class. See your classmates or listen to the podcast from Monday, July 27, part c.
9. Test 3 rewrite due Monday, August 3 (along with the extra credit described in "Assignments #8" above.) 
10. Set H: due Tuesday, August 4. ESTIMATE YOUR SCORE.
11. Set I: NOT due. From chapter 8, replace question #8 with #23 and add #25 as extra credit. Sets J, K, L, M, and N will not be collected.

Lab

1. Measurements lab: Due Monday, June 29. Performed 06-24. Handed back soon afterwards.
2. Freefall lab: Due Tues, July 7. Performed Tues, June 30. Handed back Tuesday, July 21 (maybe Wednesday).
3. Force table lab: Due Wed, July 8. Performed Wed, July 1.
4. Ballistic Pendulum: in class activity. Performed Thursday, July 23. Grades assigned during class, determined by how close you come to the bullseye.
5. Archimedes principle: Performed Wed, Aug 5. Due Monday, Aug 10. Questions you should answer include: 1) What is the unknown substance in part 1 of the lab: Magnesium, Aluminum, Steel, Tin, or Copper? (Cite your source) 2) Answer the first question at the bottom of page 21-4. 3) Answer the 2nd question at the bottom of page 21-4. 4) Before lab, you were asked to guess the amount of air (kg) in the room. At the end of the lab, you calculated it. Comment on the value you found. 5) Estimate (using absolute and/or percent error) the largest source of error in both the penny/boat and the balloon parts of the lab and explain why you believe it's the largest source of error. 6) Describe (no need for absolute/percent errors this time) another large source of error.

Exams

1. Exam 1: Date: Monday, July 6. Covers chapters 1 & 2 only. Handed back Wed, July 8.
2. Exam 2: Date: Monday, July 13. Covers chapter 3 only. Handed back Tuesday, July 14.
3. Exam 3: Date: Tuesday, July 21. Covers chapter 4 only. Handed back ...
4. Exam 4: Date: Thursday, July 30. Covers chapters 5 and the parts of chapter 13 we covered and chapter 6.
5. Exam 5: Date: Thursday, August 6, Covers materials from chapters 7, and parts of 8 (torque and statics; nothing else from chapter 8).  Handed back Monday, August 10.
6. Exam 6: will not be offered.
7. Final Exam: Thursday, .... Worth 150 points. Will contain 30 or so points of material from chapters 9 and 11.

Bottom line: the Grade Log sheet was correct about exams, except maybe that the final exam comprehensive section will be worth 150 points instead of 200 points.

Course Handouts:

1. Clicker Usage. Word. PDF.
2. Grade Summary Sheet. Word. PDF.
3. Test rewrite directions. Word. PDF.
4. 1-D motion problems. Word. PDF.
5. Vector exercises. Word. PDF.
6. Vector Solutions (link inactive). Word. PDF.
7. 2-D motion problems. Word. PDF.
8. Torque directions handout. Word. PDF.
   Torque Solutions.

PowerPoint & Podcast files

Click on PPT for a PowerPoint file. Click on PDF if you don't have PowerPoint. Download Adobe Reader if you can't view PDF files. (Dates in parentheses at the end correspond to when the PowerPoint was done in class.) Podcasts are also here. PLEASE NOTE: THE PODCAST FILES ARE 50+ MEGABYTES AND MAY TAKE A LONG TIME TO DOWNLOAD. Suggestions for better ways to host these files are greatly appreciated!

The dates in parentheses represent the class day for the PowerPoint and/or podcasts.

1. Added 06/23. (Tues 06-23) Biographical info & kinematics part 1. PPT. PDF. Podcasts:  part a, part b, part c.
2. Added 06/25. (Wed 06-24) Kinematics part 2. PPT without votes. PDF. Podcast. (No podcast for lab part of class.) PowerPoints with student votes: PPT. PDF.
3. Added 06/27. (Thu 06-25) Kinematics part 3. PPT. PDF. Podcasts. Part a, Part b, Part c (with about 30 extra minutes after end of class)
4. Added 06/30 (Mon 06-29). Kinematics part 4. PPT. PDF. Podcasts (each has about 10 minutes of "break" at the end). Part a, Part b, Part c
5. Added 07/07 (Tues 06-30) No PowerPoint. Podcast for lecture only. Performed Freefall lab.
6. Added 07/07 (Wed July 1) No PowerPoints were used during class. Forgot to record the podcast. Discussed vectors, performed Force Table lab.
7. Added 07/07 (Mon. 07/06, Tues 07/07) 2-D kinematics parts 1 & 2. Also had exam 1 on Monday. PPT. PDF. Monday's Podcast. Tuesday's Podcasts. Part a, Part b, Part c.
8. Added 07/09 (Wed 07/08) 2-D kinematics part 3 and introduction to forces. Exam 1 was handed back. Test rewrite #1 due Monday. Podcasts. Part a, Part b, Part c.
9. Added 07/11 (Thurs, 07/09). Forces part 2. PowerPoint. PPT. PDF. Podcast: Part a only. Parts b and c had technical difficulties which should be resolved now.
10. Added 07/13. (Monday 07/13) Forces part 2 - friction. Podcast. (Exam 2 rest of class.) See tomorrow's class for the 2 clicker questions we did.
11. Added 07/14. (Tuesday 07/14) Forces part 3. PPT. PDF.  Podcasts: Part a, Part b, Part c.
12. Added 07/18. (End of Wed 07/15 and Thur 07/16) Energy part 1. PPT. PDF.  Podcasts: Part a, Part b, Part c.
13. Added 07/21 Energy part 2. (Mon 07/20) PPT. PDF.  Podcasts: Part a, Part b, Part c.
14. Added 07/21 (Tuesday 07/21) Power. Podcast. Test 3 also this day.
15. Added 07/23 (Wednesday 07/22) Simple Harmonic Oscillators, sections 13.1 through 13.5 in textbook. Also brief introduction to momentum. No PowerPoint. Podcasts: Part a, Part b, Part c.
16. Added 07/27 momentum part 1: podcast from lab day.
17. Added 07/27 Momentum part 2. PowerPoints. PPT. PDF. Podcasts: Part a, Part b, Part c.
18. Added 07/30 (Tues, 07/28) Circular motion part 1. PowerPoints. PPT. PDF. Podcasts: Part a, Part b, Part c.
19. Added 07/30 (Wed, 07/29) Circular motion part 2. Podcasts: Part a, Part b, Part c.
20. Added 07/30 (Thurs, 07/30) Circular motion & Torque. PowerPoints. PPT. PDF. (See also the PPT from the class on 08/04, which is item #22 here.)  Podcast. The rest of class was exam 4.
21. Added 08/04 (Mon, 08/03) Statics. No PowerPoint. Only 2 podcasts were recorded; I must have forgotten to turn on the program for part of class. I believe the podcasts are Part a, Part c. And part b was not recorded.
22. Added 08/05 (for class on Tues, 08/04). Fluids part 1. PowerPoint. PPT. PDF.  Podcasts: Part a, Part b, Part c.
23. Added 08/06 (lab intro from 08/05). Buoyancy podcast. And another podcast from test day, 08/06. PowerPoint. PPT. PDF. 
24. Added 08/11 (for Monday, 08/10). Fluids part 2: fluids in motion. Podcasts: Part a, Part b, Part c.
25. Added 08/11 (for Tuesday, 08/11) . Heat. Podcasts: Part a, Part b, Part c.
26. Added 08/13 (for Wednesday, yes, after you took the final). PowerPoint. PPT. PDF.  Podcasts: Part a, Part b, Part c.
     

Online Resources:

1. Astronomy & Harvard University & the first computers (women). Link. Personal note: my best man's Dad is mentioned at the bottom of page 2!
2. Physics Forum website. Some students have found it helpful in previous semester.