Description
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.
Concepts
- Parallel Axis Theorem
- Period of a physical pendulum
- Computer modeling of a system
- Rotational inertia
Experiments
Physical Pendulum Experiment
What’s Included
- 1x Large Rod Base (ME-8735)
- 1x 45 cm Stainless Steel Rod (ME-8736)
- 1x Physical Pendulum Set (ME-9833)
- 1x PASPORT Rotary Motion Sensor (PS-2120A)
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
Large Rod Stand Manual
