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ERIC Number: EJ860237
Record Type: Journal
Publication Date: 2008-Mar
Pages: 3
Abstractor: As Provided
ISSN: ISSN-0031-921X
When Two Balls Are Just One
Kulp, Christopher W.; Biermann, Mark L.; Howard, Timothy; Klingenberg, Kurtis; Ramsey, Paul
Physics Teacher, v46 n3 p168-170 Mar 2008
A camcorder can be a powerful tool in pedagogical settings, such as in an introductory physics course or in introducing undergraduates to data collection. In this paper, we discuss our experience using a Panasonic PV-GS150 digital camcorder to analyze the motion of a falling steel ball, with the goal of determining the acceleration due to gravity, "g" = 9.80 m/s[superscript 2]. When performing this simple experiment, an interesting technical issue arose that led to an excellent teaching opportunity that is based on an unexpected and intriguing method of computing "g."
American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Audience: Teachers
Language: English
Sponsor: N/A
Authoring Institution: N/A