# Physics 203 at Portland State 2014

announcements

## Past Announcements

• I just updated the grades on Quiz2, Exam1 (those of you who had questions about grading), and Wiki edits as of May 10th, ~2pm. Please check on http://d2l.pdx.edu
• Practice exams are posted on this wiki (sidebar on the left, under Exam 2 review) and on http://d2l.pdx.edu under “Practice exams”. Please go over the problems to prepare for the upcoming midterm. — Nicholas Kuzma 2014/05/10 14:06

Grades for the first midterm (Exam 1), as well as the first homework (Ch. 13, 14, 25.1-25.4) have been posted on D2L. The wiki-editing/course improvement credits have been updated as well (as of the 1st exam's date). This week, I'll give out your exams in the beginning of each class. If you have any concerns about grading, you must raise them during the lecture break on the same day that you receive your exam. — Nicholas Kuzma 2014/04/28 23:12

### Exam 1 Solutions

Solutions to the first midterm exam have been posted on D2L under “Current exam solutions”
Nicholas Kuzma 2014/04/25 14:33

### Practice exam posted

• Practice exam for Midterm 1 is posted on the sidebar under Exam 1 review
• Please review before tomorrow's (Apr 17) lecture!

Nicholas Kuzma 2014/04/16 17:37

### Updated syllabus

Please take a look at the updated syllabus. The project is now a separate option from the paper and the workshop, so it can be taken in addition to one of those two. The total additional credit, though, will be capped at 15 points. — Nicholas Kuzma 2014/04/14 14:56

### Updated lecture notes

• Another correction in notes05cor3.pdf: In the example 3.2, a threshold of pain for the sound ($1\frac{\text W}{\,{\text m}^2}$) was used by mistake instead of the threshold of pain for the light ($\approx 1\frac{\text W}{\,{\text m}^2}$). Please make a note of it! — Nicholas Kuzma 2014/04/21 10:37
• In the version of Example 2.8 (Ch. 14) given in the class notes, there was an error: instead of the speed of sound in the body (1500 m/s) a speed of sound in air (343 m/s) was used. This is now correct in the wiki Example, and the twice-corrected notes have been issued:
• Some errors were fixed (in blue type) in lecture notes #4. Please download the second updated version notes04cor2.pdf. — Nicholas Kuzma 2014/04/14 15:23
• Labels “400 nm” and “800 nm” were switched around on page 3 of lecture notes #5. Please download the second updated version notes05cor3.pdf. — Nicholas Kuzma 2014/04/15 17:31

### Start of term survey

Here is the link to the start of term survey:

You can choose either this survey or a similar end-of-term survey for your additional credit quiz score, but I will really appreciate if you can find time to do both.
Nicholas Kuzma 2014/04/03 21:27

### Homework solutions

A sampler of homework solutions has been added to D2L.
Nicholas Kuzma 2014/04/02 16:40

### Almost ready for Apr 1!

• While I am putting finishing touches on this wiki and the D2L site,
• please take a moment to look through the updated syllabus (also located on the sidebar to the left)
• those who chose the exams+homework track, please register at mastering physics for your homework submission system
• Those of you who wish to receive additional credit for editing this wiki, please register by clicking at the upper right corner
• This wiki is independent from Physics 202 wiki, but you can set up the same username/password, it will work either way
• Welcome back to Physics 203!

Nicholas Kuzma 2014/03/31 00:44