When the Quarter Jumps into a Cup (and When It Does Not)
While 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...
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| Other Authors: | , , |
| Format: | article |
| Language: | English |
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2022
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| Online Access: | http://repositorio.cfe.edu.uy/handle/123456789/1731 |
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| _version_ | 1868890221151518720 |
|---|---|
| author | Dutra, Mateo |
| author2 | Suárez, Álvaro Monteiro, Martín Martí, Arturo C |
| author2_role | author author author |
| author_browse | Dutra, Mateo Martí, Arturo C Monteiro, Martín Suárez, Álvaro |
| author_facet | Dutra, Mateo Suárez, Álvaro Monteiro, Martín Martí, Arturo C |
| author_role | author |
| collection | RIdAA-CFE |
| dc.creator.none.fl_str_mv | Dutra, Mateo Suárez, Álvaro Monteiro, Martín Martí, Arturo C |
| dc.date.none.fl_str_mv | 2022-03-21T13:11:01Z 2022-03-21T13:11:01Z 2022-01-31 2022-03-21 |
| dc.format.none.fl_str_mv | pdf 1 p. |
| dc.identifier.none.fl_str_mv | DOI: 10.1119/5.0031589 http://repositorio.cfe.edu.uy/handle/123456789/1731 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | American Association for Physics Teachers (AAPT) |
| dc.relation.none.fl_str_mv | The Physics Teacher |
| dc.rights.none.fl_str_mv | openAccess info:eu-repo/semantics/openAccess cc by-nc-nd 4.0 |
| dc.source.none.fl_str_mv | The Physics Teacher; Volumen 60, Número 87 (2022) reponame:RIdAA-CFE instname:ANEP. Consejo de Formación en Educación instacron:ANEP. Consejo de Formación en Educación |
| dc.subject.none.fl_str_mv | física Enseñanza de la física |
| dc.title.none.fl_str_mv | When the Quarter Jumps into a Cup (and When It Does Not) |
| dc.type.none.fl_str_mv | info:eu-repo/semantics/article published info:eu-repo/semantics/publishedVersion |
| description | While 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 |
| eu_rights_str_mv | openAccess |
| format | article |
| id | anni_e7cd1238d6160a7159595a2ff4094610 |
| identifier_str_mv | DOI: 10.1119/5.0031589 |
| instacron_str | ANEP. Consejo de Formación en Educación |
| institution | ANEP. Consejo de Formación en Educación |
| instname_str | ANEP. Consejo de Formación en Educación |
| language | eng |
| network_acronym_str | anni |
| network_name_str | oai-lr-anni |
| oai_identifier_str | oai:repositorio.cfe.edu.uy:123456789/1731 |
| publishDate | 2022 |
| publishDateSort | 2022 |
| publisher.none.fl_str_mv | American Association for Physics Teachers (AAPT) |
| reponame_str | RIdAA-CFE |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | openAccess cc by-nc-nd 4.0 |
| spelling | When the Quarter Jumps into a Cup (and When It Does Not)Dutra, MateoSuárez, ÁlvaroMonteiro, MartínMartí, Arturo CfísicaEnseñanza de la físicaWhile 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 pressureAmerican Association for Physics Teachers (AAPT)2022-03-21T13:11:01Z2022-03-21T13:11:01Z2022-01-312022-03-21info:eu-repo/semantics/articlepublishedinfo:eu-repo/semantics/publishedVersionpdf1 p.DOI: 10.1119/5.0031589http://repositorio.cfe.edu.uy/handle/123456789/1731The Physics Teacher; Volumen 60, Número 87 (2022)reponame:RIdAA-CFEinstname:ANEP. Consejo de Formación en Educacióninstacron:ANEP. Consejo de Formación en EducaciónengThe Physics TeacheropenAccessinfo:eu-repo/semantics/openAccesscc by-nc-nd 4.0oai:repositorio.cfe.edu.uy:123456789/17312026-06-16T06:04:44Z |
| spellingShingle | When the Quarter Jumps into a Cup (and When It Does Not) Dutra, Mateo física Enseñanza de la física |
| status_str | publishedVersion |
| title | When the Quarter Jumps into a Cup (and When It Does Not) |
| title_full | When the Quarter Jumps into a Cup (and When It Does Not) |
| title_fullStr | When the Quarter Jumps into a Cup (and When It Does Not) |
| title_full_unstemmed | When the Quarter Jumps into a Cup (and When It Does Not) |
| title_short | When the Quarter Jumps into a Cup (and When It Does Not) |
| title_sort | When the Quarter Jumps into a Cup (and When It Does Not) |
| topic | física Enseñanza de la física |
| url | http://repositorio.cfe.edu.uy/handle/123456789/1731 |