Abstract
In this paper, the technique of laboratory work on experimental verification of Steiner’s Theorem in laboratory conditions is developed. To do this, specially designed experimental device was used. The main part of such device is a simple physical pendulum, swinging freely about the axis of suspension, consisting of a cylindrical disc set on a thin rod. To determine the moment of inertia of cylindrical body about the axis of vibrations, property of a physical quantity additivity was used. When processing experimental results, functional approximation by a least squares method was applied; as a result, the empirical expression of Steiner’s Theorem was achieved. Results of experimental studies were very close to the results of theoretical calculations. Laboratory work can be easily repeated for a body of arbitrary shape. The methodology used can be recommended for physical practicum in universities as an effective and easy way of experimental verification of Steiner’s theorem.
Highlights
Physical laboratory practicum is an experimental study of physics, supported by modern educational equipment
In the physical laboratory works of Evgrafova & Kagan (1970) and Korzun (1991), practical instructions of Baypakbayev, Karsybayev, & Salamatina (2007), and many other laboratory works, learning of free mechanical vibrations and determination of gravitational acceleration are done by means of physical reversible pendulum by Bessel’s Method
Article of Akimov, Baranov & Saletsky (2000) describes ways to improve the accuracy of measurement of gravitational acceleration through a training physical pendulum
Summary
Physical laboratory practicum is an experimental study of physics, supported by modern educational equipment. The purpose of laboratory practicum is training of strong competitive specialists with university quality of basic training and skills of practical application of knowledge. Laboratory practical work solves the problem of quality education in conditions of shortage of teaching time. In the physical laboratory works of Evgrafova & Kagan (1970) and Korzun (1991), practical instructions of Baypakbayev, Karsybayev, & Salamatina (2007), and many other laboratory works, learning of free mechanical vibrations and determination of gravitational acceleration are done by means of physical reversible pendulum by Bessel’s Method. Article of Akimov, Baranov & Saletsky (2000) describes ways to improve the accuracy of measurement of gravitational acceleration through a training physical pendulum. The formulae for determining the error estimation of the gravitational acceleration (g) were obtained
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