Day 59: Millikan’s Oil Drop Experiment

I originally planned a lab where students would explore Millikan’s oil drop experiment by performing video analysis of a recreation of the experiment. We ended up short on time in this unit; so, I abbreviated this lab into a discussion of the historic lab and a focus on the free-body diagrams. It is a great experiment to explore at this point in the class as it reinforces concepts from fluids (density, buoyancy, and Stokes’ Law), highlights electrostatics, and sets the stage for quantum.



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