1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
f
Bubbles that Change the Speed of Sound
Rent:
Rent this article for
Access full text Article
/content/aapt/journal/tpt/50/8/10.1119/1.4758141
1.
1.W. Bragg, The World of Sound (G. Bell and Sons Ltd., 1920), p. 158.
2.
2.F. S. Crawford, “The hot chocolate effect,” Am. J. Phys. 50, 398404 (May 1982).
http://dx.doi.org/10.1119/1.13080
4.
4.Steps like this are very important in completing the learning cycle and are an integral part of ISLE, a philosophy of teaching and learning physics that mirrors scientific practice. See E. Etkina and A. Van Heuvelen, “Investigative Science Learning Environment — A Science Process Approach to Learning Physics,” in Research-Based Reform of University Physics, edited by E. F. Redish and P. Cooney (AAPT, College Park, MD, 2007); online at per-central.org/per_reviews/media/volumel/ISLE-2007.pdf
http://aip.metastore.ingenta.com/content/aapt/journal/tpt/50/8/10.1119/1.4758141
Loading
/content/aapt/journal/tpt/50/8/10.1119/1.4758141
Loading

Data & Media loading...

Loading

Article metrics loading...

/content/aapt/journal/tpt/50/8/10.1119/1.4758141
2012-10-09
2014-07-13

Abstract

The influence of bubbles on sound has long attracted the attention of physicists. In his 1920 book1 Sir William Bragg described sound absorption caused by foam in a glass of beer tapped by a spoon. Frank S. Crawford described and analyzed the change in the pitch of sound in a similar experiment and named the phenomenon the “hot chocolate effect.”2 In this paper we describe a simple and robust experiment that allows an easy audio and visual demonstration of the same effect (unfortunately without the chocolate) and offers several possibilities for student investigations. In addition to the demonstration of the above effect, the experiments described below provide an excellent opportunity for students to devise and test explanations with simple equipment.

Loading

Full text loading...

/deliver/fulltext/aapt/journal/tpt/50/8/1.4758141.html;jsessionid=v6yudxpojxqj.x-aip-live-02?itemId=/content/aapt/journal/tpt/50/8/10.1119/1.4758141&mimeType=html&fmt=ahah&containerItemId=content/aapt/journal/tpt
true
true
This is a required field
Please enter a valid email address
This feature is disabled while Scitation upgrades its access control system.
This feature is disabled while Scitation upgrades its access control system.
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Bubbles that Change the Speed of Sound
http://aip.metastore.ingenta.com/content/aapt/journal/tpt/50/8/10.1119/1.4758141
10.1119/1.4758141
SEARCH_EXPAND_ITEM