Monday is last chance to hand in CD 5-1, CD-6-1
Coffee filter lab - write up in journal
1. Which falls faster, 1 coffee filter or 2 stacked?
2. In the absence of air resistance, which will fall faster, 1 coffee filter or 2 stacked?
3. Sketch and label a free-body diagram for both air resistance and no air resistance.
4. Sketch a graph of speed vs time for a coffee filter dropped through the air.
5. If you drop a single coffee filter from a height of 1 m, how high do you have to drop 2 stacked filters so that they hit at the same time, if dropped at the same time?
6. How many coffee filters do you need to stack so that they fall twice as fast as a single coffee filter?
7. Drop two single filters, one open and one folded. Which falls faster?
Students did lab.
Went over results in class.
Started going over questions from book at end of Chapter 6.
Did elevator examples, and lifting barbell examples using Newton's 2nd and 3rd Laws.
Test on Tuesday.
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