ERIC Number: EJ1103984
Record Type: Journal
Publication Date: 2016-Jul
Abstractor: As Provided
An Apparatus to Demonstrate Linear and Nonlinear Oscillations of a Pendulum
Mayer, V. V.; Varaksina, E. I.
Physics Education, v51 n4 Article 045012 Jul 2016
A physical pendulum with a magnetic load is proposed for comparison of linear and nonlinear oscillations. The magnetic load is repelled by permanent magnets which are disposed symmetrically relative to the load. It is established that positions of the pendulum and the magnets determine the dependence of restoring force on displacement of the load. The dependence can be both linear and nonlinear. The apparatus is equipped with a photoelectric transducer. The signal goes to a computer and is displayed on the monitor as the dependence of the oscillation period on its number. If the position of the pendulum is normal then the oscillations are approximately linear. If the pendulum is turned over then its oscillations become substantially nonlinear.
Descriptors: Comparative Analysis, Magnets, Experiments, Laboratory Equipment, Physics, Scientific Concepts, Mathematical Models, Educational Theories, Geometry, Mathematics, Geometric Concepts
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Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Authoring Institution: N/A