1M40.10 - Pendulum and Nose
Demonstrate the conservation of energy. (Well, most of it…)
InstructionsClamp the chin rest (a cross bar on a bench rod) to the end of the lecture bench. Place glove on end of chin rest, so that professor will not run into it during lecture.
Adjust the height of the chin rest to the professor's chin so it comfortably touches it and so that the professor's nose just touches the pendulum bob. Release the bob and don't move. The bob loses ~ 1/2" per swing.