When the Quarter Jumps into a Cup (and When It Does Not)

dc.creatorDutra, Mateo
dc.creatorSuárez, Álvaro
dc.creatorMonteiro, Martín
dc.creatorMartí, Arturo C
dc.date.accessioned2022-03-21T13:11:01Z
dc.date.accessioned2022-10-27T19:37:06Z
dc.date.available2022-03-21T13:11:01Z
dc.date.available2022-10-27T19:37:06Z
dc.date.created2022-03-21T13:11:01Z
dc.date.issued2022-01-31
dc.identifierDOI: 10.1119/5.0031589
dc.identifierhttp://repositorio.cfe.edu.uy/handle/123456789/1731
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4913014
dc.description.abstractWhile Bernoulli’s equation is one of the most frequently mentioned topics in physics literature and other means of dissemination, it is also one of the least understood. Oddly enough, in the wonderful book Turning the World Inside Out, Robert Ehrlich proposes a demonstration that consists of blowing a quarter coin into a cup, incorrectly explained using Bernoulli’s equation. In the present work, we have adapted the demonstration to show situations in which the coin jumps into the cup and others in which it does not, proving that the explanation presented in Ehrlich’s book based on Bernoulli’s equation is flawed. Our demonstration is useful to tackle the common misconception, stemming from the incorrect use of this equation, that higher velocity invariably means lower pressure
dc.publisherAmerican Association for Physics Teachers (AAPT)
dc.relationThe Physics Teacher
dc.rightscc by-nc-nd 4.0
dc.rightsopenAccess
dc.sourceThe Physics Teacher; Volumen 60, Número 87 (2022)
dc.subjectfísica
dc.subjectEnseñanza de la física
dc.titleWhen the Quarter Jumps into a Cup (and When It Does Not)
dc.typeArtículos de revistas


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