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ERIC Number: EJ868555
Record Type: Journal
Publication Date: 2009-Nov
Pages: 6
Abstractor: As Provided
Reference Count: 7
ISSN: ISSN-0031-9120
Revival of the Jumping Disc
Ucke, C.; Schlichting, H-J.
Physics Education, v44 n6 p612-617 Nov 2009
Snap discs made of bimetal have many technical applications as thermostats. Jumping discs are a toy version of such snap discs. Besides giving technical information, we describe physical investigations. We show especially how, through simple measurements and calculations, you can determine the initial speed ([approximately equal to]3.5 m s[superscript -1]), the acceleration ([approximately equal to]30 000 m s[superscript -2]) and the lower and upper snap temperature ([approximately equal to]31; [approximately equal to]99 [degree]C. High speed videos give even deeper insight into the jump. (Contains 2 footnotes and 9 figures.)
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:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A