Abstract

Anyone teaching physics is aware of the conceptual challenges encountered by students in the study of circular motion. Students often forget that even uniform circular motion involves acceleration, as the direction of motion changes continuously. Force equilibrium does not hold for accelerated bodies. No magic forces arise because you move around in a circle—you move in a circle because interactions with the surroundings prevent you from moving straight ahead. It is important to distinguish between forces acting on your body and forces you exert on the surroundings. This chapter deals with several examples of uniform circular motion in a horizontal plane and how they can be experienced, observed, simulated, and measured with simple equipment or electronic sensors.

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