Experimentation in the teaching of Modern Physics: Photoelectric Effect with neon lamp and LEDs

Detalhes bibliográficos
Autor(a) principal: Eberhardt, Dario
Data de Publicação: 2017
Outros Autores: Da Rocha Filho, João Bernardes, Lahm, Regis Alexandre, Baitelli, Pedro Barros
Tipo de documento: Artigo
Idioma: por
Título da fonte: Caderno Brasileiro de Ensino de Física (Online)
Texto Completo: https://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2017v34n3p928
Resumo: The article presents an experiment aimed at the teaching of Physics in High School, specifically the Photoelectric Effect, and it aims to support the teacher or serve as an inspiration for the proposition of other didactic activities. The experimentation consists on the exposure of a neon lamp to the lights of different wavelengths emitted by varied LEDs. The photoelectric current is measured on electrodes of the neon lamp, verifying that it has definite direction; the effect occurs when the wavelength of the applied light is less than a certain limit, and; the intensity of the photoelectric current depends on the intensity of the light applied, in agreement with the current scientific model of the phenomenon. This text also includes many decisive moments of the history of the Photoelectric Effect, characteristics of similar experiments using ultraviolet light, the electron work function of the metals of the electrodes and the ionization energy of the gases inside the lamp.
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spelling Experimentation in the teaching of Modern Physics: Photoelectric Effect with neon lamp and LEDsExperimentação no ensino de Física Moderna: efeito fotoelétrico com lâmpada néon e LEDsThe article presents an experiment aimed at the teaching of Physics in High School, specifically the Photoelectric Effect, and it aims to support the teacher or serve as an inspiration for the proposition of other didactic activities. The experimentation consists on the exposure of a neon lamp to the lights of different wavelengths emitted by varied LEDs. The photoelectric current is measured on electrodes of the neon lamp, verifying that it has definite direction; the effect occurs when the wavelength of the applied light is less than a certain limit, and; the intensity of the photoelectric current depends on the intensity of the light applied, in agreement with the current scientific model of the phenomenon. This text also includes many decisive moments of the history of the Photoelectric Effect, characteristics of similar experiments using ultraviolet light, the electron work function of the metals of the electrodes and the ionization energy of the gases inside the lamp.O artigo apresenta uma experimentação destinada ao ensino de Física Moderna no Ensino Médio, especificamente o Efeito Fotoelétrico, e visa a instrumentalizar o professor ou servir como inspiração para a proposição de atividades didáticas. A experimentação descrita se funda na exposição de uma lâmpada néon às luzes de diferentes comprimentos de onda emitidas por LEDs variados. Mede-se a corrente fotoelétrica entre os eletrodos da lâmpada néon, verificando-se que esta possui sentido definido; que o efeito ocorre quando o comprimento de onda da luz aplicada é menor que determinado limite, e; que a intensidade da corrente fotoelétrica depende da intensidade da luz aplicada, em acordo com o modelo científico atual do fenômeno. São discutidas partes da história do Efeito Fotoelétrico, características de experimentos assemelhados que utilizam lâmpadas de luz ultravioleta, a função trabalho dos metais dos eletrodos e a energia de ionização dos gases no interior da lâmpada. Imprensa Universitária - UFSC2017-12-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2017v34n3p92810.5007/2175-7941.2017v34n3p928Caderno Brasileiro de Ensino de Física; v. 34 n. 3 (2017); 928-9502175-79411677-2334reponame:Caderno Brasileiro de Ensino de Física (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCporhttps://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2017v34n3p928/35528Copyright (c) 2017 Caderno Brasileiro de Ensino de Físicainfo:eu-repo/semantics/openAccessEberhardt, DarioDa Rocha Filho, João BernardesLahm, Regis AlexandreBaitelli, Pedro Barros2017-12-08T17:18:21Zoai:periodicos.ufsc.br:article/48317Revistahttp://www.periodicos.ufsc.br/index.php/fisicaPUBhttps://periodicos.ufsc.br/index.php/fisica/oaicbefisica@gmail.com||fscccef@fsc.ufsc.br|| cbefisica@gmail.com2175-79411677-2334opendoar:2017-12-08T17:18:21Caderno Brasileiro de Ensino de Física (Online) - Universidade Federal de Santa Catarina (UFSC)false
dc.title.none.fl_str_mv Experimentation in the teaching of Modern Physics: Photoelectric Effect with neon lamp and LEDs
Experimentação no ensino de Física Moderna: efeito fotoelétrico com lâmpada néon e LEDs
title Experimentation in the teaching of Modern Physics: Photoelectric Effect with neon lamp and LEDs
spellingShingle Experimentation in the teaching of Modern Physics: Photoelectric Effect with neon lamp and LEDs
Eberhardt, Dario
title_short Experimentation in the teaching of Modern Physics: Photoelectric Effect with neon lamp and LEDs
title_full Experimentation in the teaching of Modern Physics: Photoelectric Effect with neon lamp and LEDs
title_fullStr Experimentation in the teaching of Modern Physics: Photoelectric Effect with neon lamp and LEDs
title_full_unstemmed Experimentation in the teaching of Modern Physics: Photoelectric Effect with neon lamp and LEDs
title_sort Experimentation in the teaching of Modern Physics: Photoelectric Effect with neon lamp and LEDs
author Eberhardt, Dario
author_facet Eberhardt, Dario
Da Rocha Filho, João Bernardes
Lahm, Regis Alexandre
Baitelli, Pedro Barros
author_role author
author2 Da Rocha Filho, João Bernardes
Lahm, Regis Alexandre
Baitelli, Pedro Barros
author2_role author
author
author
dc.contributor.author.fl_str_mv Eberhardt, Dario
Da Rocha Filho, João Bernardes
Lahm, Regis Alexandre
Baitelli, Pedro Barros
description The article presents an experiment aimed at the teaching of Physics in High School, specifically the Photoelectric Effect, and it aims to support the teacher or serve as an inspiration for the proposition of other didactic activities. The experimentation consists on the exposure of a neon lamp to the lights of different wavelengths emitted by varied LEDs. The photoelectric current is measured on electrodes of the neon lamp, verifying that it has definite direction; the effect occurs when the wavelength of the applied light is less than a certain limit, and; the intensity of the photoelectric current depends on the intensity of the light applied, in agreement with the current scientific model of the phenomenon. This text also includes many decisive moments of the history of the Photoelectric Effect, characteristics of similar experiments using ultraviolet light, the electron work function of the metals of the electrodes and the ionization energy of the gases inside the lamp.
publishDate 2017
dc.date.none.fl_str_mv 2017-12-08
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2017v34n3p928
10.5007/2175-7941.2017v34n3p928
url https://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2017v34n3p928
identifier_str_mv 10.5007/2175-7941.2017v34n3p928
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2017v34n3p928/35528
dc.rights.driver.fl_str_mv Copyright (c) 2017 Caderno Brasileiro de Ensino de Física
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2017 Caderno Brasileiro de Ensino de Física
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Imprensa Universitária - UFSC
publisher.none.fl_str_mv Imprensa Universitária - UFSC
dc.source.none.fl_str_mv Caderno Brasileiro de Ensino de Física; v. 34 n. 3 (2017); 928-950
2175-7941
1677-2334
reponame:Caderno Brasileiro de Ensino de Física (Online)
instname:Universidade Federal de Santa Catarina (UFSC)
instacron:UFSC
instname_str Universidade Federal de Santa Catarina (UFSC)
instacron_str UFSC
institution UFSC
reponame_str Caderno Brasileiro de Ensino de Física (Online)
collection Caderno Brasileiro de Ensino de Física (Online)
repository.name.fl_str_mv Caderno Brasileiro de Ensino de Física (Online) - Universidade Federal de Santa Catarina (UFSC)
repository.mail.fl_str_mv cbefisica@gmail.com||fscccef@fsc.ufsc.br|| cbefisica@gmail.com
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