I checked the Roller Coaster problem for the people who had not previously gotten a stamp. There will be a quiz on a similar problem next time. You can check your work for the problem here. I also discussed the idea of work, and demonstrated that an object pulled at constant velocity requires a constant amount of force, no matter how far you pull it. The area underneath a graph of force and displacement is a rectangle, thus work can be determined by the equation W = FΔx.
I also showed the easy way to do Energy-Work problems when we assume a 100% energy transfer and there is a single energy type present in the initial and final conditions. Homework is to finish the worksheet we started in class.
The last 30 minutes of the period we spent collecting data for the popper lab.
HW: Finish WS 2b, finish lab, study for quiz on roller coaster problem.
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