Since you already had an exam this week, no quiz tomorrow.
We wil cover neat stuff tomorrow, like how electric motors and permanent magnets work though.
Also: I hope to have Chapter 19 notes up over the weekend, I have fallen a bit behind this week.
... will be some online applets.
We will do Exploration 27.1 and 27.3 ... NOT the illustrations or problems, but explorations.
Write up the anwers to the lettered questions at the end of each "physlet" and email them to me, one per group.
Exam I has been graded, and the results were good. No scaling was necessary. The class average was 81.25% (19.5/24), with a standard deviation of 11.2% (2.69/24). Letter grades would be something like this:
A = >90% (>21.5)
B = 80-89% (19-21.5)
C = 70-79% (17-19)
D = 60-69% (14.5-17)
There were half points on question 1 and the bonus question. Below is a histogram of the scores. There were 7 A's, 19 B's, 13 C's, 4 D's, and 2 F's.
An exam solution will be posted by the end of the week.
