Physical Pendulum Experiment - EX-5518A



In this experiment designed for use with PASCO Capstone software, the period of a physical pendulum, a narrow bar, is determined as a function of the distance of the pivot from the center of mass. A computer model of the system is developed, which allows the student to vary the physical parameters of the model (gravity, length, c.m. position) to match the data. This makes it possible to obtain values for the physical parameters without direct measurement.

A second experiment verifies the parallel axis theorem. It also uses superposition to find the rotational inertia of a disk with an off axis circular hole.

The Pendulum Bar has holes spaced at 2 cm intervals. A graph of oscillation period vs. pivot hole position shows that there is a unique placement that gives a minimum period. This location can be verified using calculus.

Buying Guide


Interface Required

A 550 Universal Interface or 850 Universal Interface is required for use with this product.  Compare the 550 and 850.

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Software Required

This product requires or recommends PASCO Capstone for data collection and analysis.