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ERIC Number: EJ1066048
Record Type: Journal
Publication Date: 2015-Jul
Pages: 5
Abstractor: As Provided
Reference Count: N/A
ISBN: N/A
ISSN: ISSN-0031-9120
Einstein versus the Simple Pendulum Formula: Does Gravity Slow All Clocks?
Puri, Avinash
Physics Education, v50 n4 p431-435 Jul 2015
According to the Newtonian formula for a simple pendulum, the period of a pendulum is inversely proportional to the square root of "g", the gravitational field strength. Einstein's theory of general relativity leads to the result that time slows down where gravity is intense. The two claims look contradictory and can muddle student and teacher alike. There is, however, no real paradox. This article, which aims to clarify the conceptual issues, identifies two sources of confusion. One is a failure to distinguish a pendulum from a pendulum clock. The other is a failure to distinguish between two distinct gravitational fields.
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: info@ioppubusa.com; Web site: http://journals.iop.org
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A