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Academic Journal of Engineering and Technology Science, 2022, 5(12); doi: 10.25236/AJETS.2022.051203.

The Measurement of Moment of Inertia by Using Three Wire Pendulum


Ning Feng

Corresponding Author:
Ning Feng

Sino-British College, University of Shanghai for Science and Technology, Shanghai, China


Moment of inertia is a physical quantity of great significance for the rotation of objects. This formal laboratory report studies the use of three-wire pendulum to measure the moment of inertia of an object. The main principle is to use the period of the torsional pendulum motion of the object to approximate the moment of inertia by the conservation of mechanical energy. The experiment verifies the feasibility of measuring the moment of inertia by using a three-wire pendulum within the error range. At the same time, the parallel axis theorem is proved experimentally.


Moment of Inertia, Three Wire Pendulum, Swing Period, Parallel Axis Theorem

Cite This Paper

Ning Feng. The Measurement of Moment of Inertia by Using Three Wire Pendulum. Academic Journal of Engineering and Technology Science (2022) Vol. 5, Issue 12: 18-25. https://doi.org/10.25236/AJETS.2022.051203.


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