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ERIC Number: EJ1165785
Record Type: Journal
Publication Date: 2018-Jan
Pages: 2
Abstractor: As Provided
ISSN: ISSN-0031-921X
On Mass, Spacetime Curvature, and Gravity
Janis, Allen I.
Physics Teacher, v56 n1 p12-13 Jan 2018
The frequently used analogy of a massive ball distorting an elastic sheet, which is used to illustrate why mass causes spacetime curvature and gravitational attraction, is criticized in this article. A different analogy that draws on the students' previous knowledge of spacetime diagrams in special relativity is suggested.
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 - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A