Day 70: Inquiry into Friction

friction1 Friction2 friction3

Physics 11 – We used most of the class to look a how friction could be modeled on the microscopic level, and the factors that affect friction.  The first class brainstormed possible factors that affect friction and then broke into groups to investigate a factor.  However, a few groups had a difficult time clearly identify friction force as the dependent variable, and a variable that they could directly measure.

I had the second class work through a more structured approach to designing their experiments, where the dependent variable was more explicitly stated and recognized as being something that could be measured. We used the Smarter Science framework to assist with this.  We didn’t have time to carry out the experiments, so that will be done the next day.

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