Physical Pendulum Experiment

Product Code: EX-5518A


In this experiment, 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.


  • Parallel Axis Theorem
  • Period of a physical pendulum
  • Computer modeling of a system
  • Rotational inertia


Physical Pendulum Experiment

What’s Included

Software Required

This product requires PASCO software for data collection and analysis. We recommend the following option(s). For more information on which is right for your classroom, see our Software Comparison: SPARKvue vs. Capstone »

Interface Required

This product requires a PASCO Interface to connect to your computer or device. We recommend the following option(s). For a breakdown of features, capabilities, and additional options, see our Interface Comparison Guide »

Support Documents

PASPORT Rotary Motion Sensor

Large Rod Stand Manual

PASPORT Rotary Motion Sensor Manual

Physical Pendulum Set Manual

Manual Downloads

Product Manuals for the Included Products

Rotary Motion Sensor Manual PS-2120A
(1.1 MB – .pdf – English)
Large Rod Base Manual (ME-8735)
(46 KB – .pdf – English)
Physical Pendulum Set Manual (ME-9833)
(875 KB – .pdf – English)
Experiment File
EX-5518 Physical
(13.5 MB – .zip – English)