The unit includes a metal bar with additional sliding weights as a rigid pendulum. The suspension point can be adjusted at the knife edge bearing of the pendulum. The length of the thread pendulum included can be easily varied using a clamping device. The model is used to investigate the oscillation of pendulums. During this process a physical pendulum is compared with a mathematical pendulum. The model is suitable for student experiments. The components of the experiment are attached to a base plate intended for wall mounting.
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