Bonus points question for exam 3.

Our next midterm can include a question YOU write. There is a new discussion area in Webcourses for posting your question, multiple choice or true/false.

Don't forget to indicate the correct answer with an asterisk (*) and state the chapter and page in the textbook or the day of lecture where your question's concept came up.

No lecture on Friday

Students, due to family emergency, I will not be having lecture for this Friday. No homework.

I will see you on Monday, to talk about H₂O and hurricanes.

SSG: Special study group leaders alert

If your exam avg. is 90% right now, then your course mail in Webcourses has a new message from me. It is my offer to make you a special study groups leader.

Meg Avril and Ashton Dacus, our TAs, were SSG leaders in semesters past, so you can query them about the benefits of beeing an SSG leader.

Reply to me, a yes or no, by Wednesday. Then we can set up signups to start by Friday.

HW 11 is running

HW 11 is running since last night. GO for it!!

Break down sheets are UP

Now that so many of you have gotten your exam 2 printouts back, you can correlate scores to specific topic for each item you missed, by using the exam 2 breakdown sheets.

Look for the blue keyboard icon on the course homepage.

HW 10 - one more time!! But wait, there's more!

HW 10 is now ready for one more try, as I promised in lecture today.

Also, HW 11 is available, due Friday, 3:30 PM. It is a simple question about the weather map we looked at today.

Homework is ready

The next homework is now ready, HW 10, due Wednesday afternoon, 3:30 PM.

ALL EXAM 2 DATA ARE IN

OK, all of the exam 2 data are now UP. Go take a look at Midterm Exam 2 and its three subscores:

1. Exam 2 scantron
2. Exam 2 SMA regular
3. Exam 2 SMA bonus

Scantron data are IN

I received exam data this afternoon from test scoring. Forty of your points are on the scantron. Those points are now UP for all but a handful of you. (A few of you have no score -- bad scantron or no test form, so your grade will wait til next week.)

Also: I am starting to add in the SMA data:

1. Exam 2 regular SMA, 5 points possible, and
2. Exam 2 SMA bonus which was one item, worth 2 bonus points.

So these are going in in small blocks of about 30 students. I will finish after dinner, probably.

See you on Monday.

Exam 2 today, be ready for action.

Exam 2 starts today at 3:30 PM, sharp.

Make sure to bring CPS clicker, a UCF scantron and a pencil. Calculator is OK if you have one.

Today's mini-review CPS session is UP

Check the Linsky files for today's CPS session.

To recap, the toughest question was the size of Δp.

Δp = p_f - p_i and we know its direction is rightward.
p_i = (1 kg m/sec left, 1 kg m/sec down)
p_f = (1 kg m/sec right, 1 kg m/sec down)

Subtract horizontal components, final - initial:
     1 kg m/sec right - 1 kg m/sec left
which is just like
     +1 kg m/sec - (-1 kg m/sec)
and that totals +2 kg m/sec, which is the answer.

Note: the vertical components do not change at the impact, so Δp = 2 kg m/sec rightward and nothing vertical.

CPS pointage updated from last week

I just updated the CPS points from last week, Lecture 19 and Lecture 20 sessions. The corresponding Linsky Files are also in place.

Interesting:

1. 10 Linsky Files from 10 CPS sessions
2. 9 homework assignments.

By the end of the semester we will probably be 20 each, maybe more.

Aggie's and Jarvis' angular momentum project

I just uploaded to the angular momentum movie, with Aggie and Jarvis from Spring 2007, to iTunes U, You can download it and view it in compact form, known as the "summer_version."

S.I. Review session

Breaking news on the exam preparations:

MAP 109 is reserved for the Physical Science review session on Tuesday 10/14 from 2:00 to 4:00pm.

Be there if you can squeeze it in, even 15 minutes!

HW 8 is ready, but are YOU ready?

There are some potentially brain-burning energy questions in HW 8. Plus one simple angular momentum calculation. It is due on Wednesday, 3:30 PM, as usual.

Attempt 5 now available

You can now take a 5th attempt at the Mega-combo homework, HW 7, as mentioned in lecture.

OOOPS

HW 7 was accidentally set to stall out after one attempt, but I intended to give you all 4 attempts.

It is fixed now, and you have until 10 PM tonight to get in your attempts, a short extension. Sorry for the mixup.

Homework 7 is ready

The Mega-combo homework is now ready for study and calculation. Look in the Monsters. Inc. icon in Webcourses.

Stragglers

There are always a few stragglers on the first exam:

1. no PID on scantron,
2. you forgot your clicker,
3. etc.

When that happens, everything slows down for me, and for you because I have to dig out your exam paper and your scantron from two big unalphabetized piles. Heinous.

Exam scores are UP.

Last night I finally received our scantron scores - wow, that was a long wait. Anyway, all your scores are now UP in Webcourses. Look in your gradebook page, and you will see something like this:

The total score is made up of three subscores: scantron, regular SMA and bonus SMA. I also added in a non-numeric row to signify whether I gave you partial credit on the baseball brain burner in SMA bonus subscore, for which the answer was 20.4 meters. I will discuss the partial credit in lecture. If you got it, it is in the SMA bonus subscore. Total possible was 48 points.

Overall, the exam was OK. Almost everyone passed. Nobody aced. Lots of good scores.

Remember: we are shooting for 90% average on the first two midterms, if you want to qualify for Special Study Group (SSG) leader and bypass the final exam.