03/07/08 What happened?

Some people might be asking themselves, What happened friday? I hope I can answer some of the questions regarding 5th period...the rest is up to you to remember.

The beginning of the class was revolved around checking the homework with the answers up on the overhead. Like many Fridays, it was a pretty talkative group. Conversations about physics related things of course. After about ten minutes or so of homework talk, Mr. Wirth went on to explain the mini-lab that the class was going to work on that day.

First, Mr. Wirth charges up the ruler with wool, making the ruler negative.
Next he charges the rod with the bunny skin, making the rod negative.
The reaction of two negatively charged objects to each other is <-----> repulsive.

The class broke up into groups to conduct similar experiments with the same objects to see how different charges and objects react to one another. Data was recorded in a chart and one chart was necessary per group.
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After the groups returned back to their seats, Mr. Wirth passed out graded work and showed us our weekend homework...
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Read Chapter 20 (p. 540-561)
Do problems: #1, 5, 6, 16, 18, 19, 21
DUE: Tuesday, March 11th*
*Students can either hand write or type up the homework and it will be collected and be graded.
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There is a online version of the textbook located on the physics website in the side tool bar on the homepage if you can't find your own book.
Make sure to know how to use an electroscope, if not be sure to see Mr. Wirth with questions.
That's about it. Enjoy.
-DH