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ERIC Number: EJ1013814
Record Type: Journal
Publication Date: 2013-Mar
Pages: 5
Abstractor: As Provided
ISSN: ISSN-0031-9120
Revisiting the Bell-Jar Demonstration
Caleon, Imelda; Subramaniam, R.; Regaya, Ma Hershey P.
Physics Education, v48 n2 p247-251 Mar 2013
The familiar bell-jar demonstration, commonly used to show that sound cannot travel in a vacuum, is revisited in this study. It is suggested that by emphasizing the different media present in this set-up, sound propagation in near-vacuum conditions can be made possible. In this way, the concept of sound propagation in this set-up can be examined in a nuanced manner. In a study involving upper-secondary students, the set-up has also been found to be helpful in addressing a few alternative conceptions related to sound propagation. (Contains 2 figures.)
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Publication Type: Journal Articles; Reports - Research
Education Level: Secondary Education; High Schools
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A