When the Quarter Jumps into a Cup (and When It Does Not)
Resumen:
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
| 2022 | |
|
física Enseñanza de la física |
|
| Inglés | |
| ANEP. Consejo de Formación en Educación | |
| RIdAA-CFE | |
| http://repositorio.cfe.edu.uy/handle/123456789/1731 | |
| Acceso abierto | |
| cc by-nc-nd 4.0 |
| _version_ | 1815416028581068800 |
|---|---|
| author | Dutra, Mateo |
| author2 | Suárez, Álvaro Monteiro, Martín Martí, Arturo C |
| author2_role | author author author |
| author_facet | Dutra, Mateo Suárez, Álvaro Monteiro, Martín Martí, Arturo C |
| author_role | author |
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| bitstream.checksumAlgorithm.fl_str_mv | MD5 MD5 MD5 MD5 |
| bitstream.url.fl_str_mv | http://repositorio.cfe.edu.uy/bitstream/123456789/1731/1/license.txt http://repositorio.cfe.edu.uy/bitstream/123456789/1731/2/Dutra%2c%20M.%2c%20When.pdf http://repositorio.cfe.edu.uy/bitstream/123456789/1731/3/Dutra%2c%20M.%2c%20When.pdf.txt http://repositorio.cfe.edu.uy/bitstream/123456789/1731/4/Dutra%2c%20M.%2c%20When.pdf.jpg |
| collection | RIdAA-CFE |
| dc.creator.filiacion.ES.fl_str_mv | UdelaR Instituto de Física ANEP CFE Universidad ORT Uruguay UdelaR Instituto de Física |
| dc.creator.none.fl_str_mv | Dutra, Mateo Suárez, Álvaro Monteiro, Martín Martí, Arturo C |
| dc.date.accessioned.none.fl_str_mv | 2022-03-21T13:11:01Z |
| dc.date.available.none.fl_str_mv | 2022-03-21T13:11:01Z |
| dc.date.issued.none.fl_str_mv | 2022-01-31 |
| dc.date.submitted.none.fl_str_mv | 2022-03-21 |
| dc.description.abstract.none.fl_txt_mv | 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 |
| dc.format.ES.fl_str_mv | pdf |
| dc.format.extent.ES.fl_str_mv | 1 p. |
| dc.identifier.other.none.fl_str_mv | DOI: 10.1119/5.0031589 |
| dc.identifier.uri.none.fl_str_mv | http://repositorio.cfe.edu.uy/handle/123456789/1731 |
| dc.language.iso.none.fl_str_mv | eng |
| dc.publisher.ES.fl_str_mv | American Association for Physics Teachers (AAPT) |
| dc.relation.ispartof.ES.fl_str_mv | The Physics Teacher |
| dc.rights.ES.fl_str_mv | openAccess |
| dc.rights.license.none.fl_str_mv | cc by-nc-nd 4.0 |
| dc.rights.none.fl_str_mv | info:eu-repo/semantics/openAccess |
| dc.source.ES.fl_str_mv | The Physics Teacher; Volumen 60, Número 87 (2022) |
| dc.source.none.fl_str_mv | reponame:RIdAA-CFE instname:ANEP. Consejo de Formación en Educación instacron:ANEP. Consejo de Formación en Educación |
| dc.subject.ES.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.ES.fl_str_mv | info:eu-repo/semantics/article |
| dc.type.version.ES.fl_str_mv | published |
| dc.type.version.none.fl_str_mv | 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 | CFE_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 | CFE |
| network_name_str | RIdAA-CFE |
| oai_identifier_str | oai:repositorio.cfe.edu.uy:123456789/1731 |
| publishDate | 2022 |
| reponame_str | RIdAA-CFE |
| repository.mail.fl_str_mv | mariavaleriapaulo@gmail.com |
| repository.name.fl_str_mv | RIdAA-CFE - ANEP. Consejo de Formación en Educación |
| repository_id_str | 10159 |
| rights_invalid_str_mv | cc by-nc-nd 4.0 openAccess |
| spelling | cc by-nc-nd 4.0openAccessinfo:eu-repo/semantics/openAccessDutra, MateoSuárez, ÁlvaroMonteiro, MartínMartí, Arturo CUdelaR Instituto de FísicaANEP CFEUniversidad ORT UruguayUdelaR Instituto de Física2022-03-21T13:11:01Z2022-03-21T13:11:01Z2022-01-312022-03-21DOI: 10.1119/5.0031589http://repositorio.cfe.edu.uy/handle/123456789/1731While 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 pressurepdf1 p.engAmerican Association for Physics Teachers (AAPT)The Physics TeacherThe Physics Teacher; Volumen 60, Número 87 (2022)reponame:RIdAA-CFEinstname:ANEP. Consejo de Formación en Educacióninstacron:ANEP. Consejo de Formación en EducaciónfísicaEnseñanza de la físicaWhen the Quarter Jumps into a Cup (and When It Does Not)info:eu-repo/semantics/articlepublishedinfo:eu-repo/semantics/publishedVersioncontinuaLICENSElicense.txtlicense.txttext/plain; charset=utf-86084http://repositorio.cfe.edu.uy/bitstream/123456789/1731/1/license.txtdf766076a5772cb4184b94046e67735aMD51ORIGINALDutra, M., When.pdfDutra, M., When.pdfapplication/pdf212783http://repositorio.cfe.edu.uy/bitstream/123456789/1731/2/Dutra%2c%20M.%2c%20When.pdfd4f834c0a11a8095eec5e749787e18f9MD52TEXTDutra, M., When.pdf.txtDutra, M., When.pdf.txtExtracted texttext/plain5522http://repositorio.cfe.edu.uy/bitstream/123456789/1731/3/Dutra%2c%20M.%2c%20When.pdf.txt8388d32e6f45eeae3dc725230d8a09c2MD53THUMBNAILDutra, M., When.pdf.jpgDutra, M., When.pdf.jpgGenerated Thumbnailimage/jpeg1964http://repositorio.cfe.edu.uy/bitstream/123456789/1731/4/Dutra%2c%20M.%2c%20When.pdf.jpg2c79893052fe0a63bddba7401a410360MD54123456789/17312022-03-22 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Consejo de Formación en Educaciónfalse |
| 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 |
