Homework: Due Friday Read p. 83-86. work p. 86#1-7
Last Wednesday Mr. F. was absent; classes worked on a review WS (get one here) and today I handed out an answer key to check your work. See me if you still have any questions.
Today in class we brainstormed ideas about friction - what we think we know or want to know - to help guide tomorrow and Wednesday's inquiry lab: Friction - basically each group (or individual) will pick out an independent variable and test its effect on frictional force. Most groups will probably use our force sensors to get quantitative results (results with numbers) as part of their data. Data collection will take place tomorrow and possibly part of Wednesday, and will be mixed with notes and demonstrations about friction, air resistance, and still some fun ones involving inertia and Newton's 2nd law. Our next topic will be momentum; it ties well with Newton's 2nd and 3rd laws well... F=ma meets action - reaction forces.
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