A study on the Moment of Inertia around the Center of Mass of the Thin Geometrical Objects based on the Parallel Axis Theorem By using Physical Pendulum Apparatus

Abstract

The study on the moment of inertia around the center of mass of the thin geometrical objects base on the parallel axis theorem by using physical pendulum apparatus is reported. The symmetrical test included rectangle, right triangle and isosceles triangle to study on the moment of inertia, the periodic oscillations minimum position, the harmonic motion of a physical pendulum and the parallel axis theorem. The experimental results found that the moment of inertia around the center of mass were in good agreement with theoretical calculation values within 5% error. The positions of the minimum period of physical pendulum were also in good agreement between the experimental results and theoretical calculated values within the order of millisecond. We also showed a simple experiment using very low cost experiment for investigating the subjects with symmetrical test.