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ERIC Number: EJ931773
Record Type: Journal
Publication Date: 2011-Jul
Pages: 6
Abstractor: As Provided
Reference Count: 10
ISSN: ISSN-0143-0807
A Simple Method to Measure the Trajectory of a Spherical Pendulum
Yang, Hujiang; Xiao, Jinghua; Yang, Tianyu; Qiu, Chen
European Journal of Physics, v32 n4 p867-872 Jul 2011
Compared with a single gravity pendulum, the spherical pendulum behaves more complicatedly in experiments, which makes it difficult to measure. In this paper, we present a method to visualize the trajectories of a spherical pendulum by employing a gravity ball with a lit LED and a digital camera. This new measurement is inexpensive and easy to use. We analyse the experimental results with the help of analytical mechanics, and give the numerical simulation for better understanding. The experiment is carried out in our physics undergraduate laboratory. Through the experiment, we can improve students' existing knowledge and evoke their creativity. (Contains 5 figures.)
Institute of Physics Publishing. The Public Ledger Building Suite 929, 150 South Independence Mall West, Philadelphia, PA 19106. Tel: 215-627-0880; Fax: 215-627-0879; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A