Difficulties experienced by university students in the conceptualizations of basic parameters from the equation of mechanical waves and their treatments in physics textbooks
Autor(a) principal: | |
---|---|
Data de Publicação: | 2019 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | spa |
Título da fonte: | Caderno Brasileiro de Ensino de Física (Online) |
Texto Completo: | https://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2019v36n3p630 |
Resumo: | In the initial university cycle, and forming part of the Mechanics contents, the study of the transverse mechanical waves is addressed by representing them mathematically through a harmonic function of two variables. This function involves characteristic parameters whose nature is not easily understood by students. We present a study about the learning achieved by students from different scientific-technological careers, regarding the meanings of amplitude, frequency, the speed of propagation, wavelength and initial phase in this equation. Besides, we inquired about the treatment given to these parameters in Physics books which are frequently used in the initial cycle, observing if their physical origins are adequately explained. The study shows that students present difficulties in understanding the wave behavior from a phenomenological point of view, as well as in interpreting the physical meaning of the phase constant. Furthermore, we observed that not all the authors of the analyzed Mechanics books refer explicitly to them and with the necessary appropriate details. Recommendations about the design of didactic strategies that favour the understanding of the wave phenomenon and its propagation by students are given to teachers and professors. |
id |
UFSC-19_184bfa6bfc531c3eb5abf960e934e611 |
---|---|
oai_identifier_str |
oai:periodicos.ufsc.br:article/60630 |
network_acronym_str |
UFSC-19 |
network_name_str |
Caderno Brasileiro de Ensino de Física (Online) |
repository_id_str |
|
spelling |
Difficulties experienced by university students in the conceptualizations of basic parameters from the equation of mechanical waves and their treatments in physics textbooksDificultades en estudiantes universitarios acerca de las conceptualizaciones de los parámetros básicos en la ecuación de ondas mecánicas y sus tratamientos en libros de FísicaIn the initial university cycle, and forming part of the Mechanics contents, the study of the transverse mechanical waves is addressed by representing them mathematically through a harmonic function of two variables. This function involves characteristic parameters whose nature is not easily understood by students. We present a study about the learning achieved by students from different scientific-technological careers, regarding the meanings of amplitude, frequency, the speed of propagation, wavelength and initial phase in this equation. Besides, we inquired about the treatment given to these parameters in Physics books which are frequently used in the initial cycle, observing if their physical origins are adequately explained. The study shows that students present difficulties in understanding the wave behavior from a phenomenological point of view, as well as in interpreting the physical meaning of the phase constant. Furthermore, we observed that not all the authors of the analyzed Mechanics books refer explicitly to them and with the necessary appropriate details. Recommendations about the design of didactic strategies that favour the understanding of the wave phenomenon and its propagation by students are given to teachers and professors.En el ciclo inicial universitario, formando parte de los contenidos de Mecánica, se aborda el estudio de las ondas mecánicas transversales representándolas matemáticamente a través de una función armónica de dos variables. Esta función involucra parámetros característicos cuya naturaleza no es inmediata para los estudiantes. Se presenta un estudio sobre los aprendizajes logrados por parte de estudiantes que cursan carreras científico-tecnológicas acerca de los significados atribuidos a la amplitud, frecuencia, rapidez de propagación, longitud de onda y fase inicial en dicha ecuación. Además, se indagó sobre el tratamiento que se da a estos parámetros en libros de física usados frecuentemente en el ciclo inicial; se investigó si se explican adecuadamente los orígenes físicos de los mismos. Del estudio realizado se desprende, por un lado, que los estudiantes presentan dificultades en comprender fenomenológicamente al movimiento ondulatorio y en interpretar el significado físico de la constante de fase; y por otro, que no todos los autores de los libros de Mecánica analizados hacen referencia a esos parámetros de un modo explícito, y con los detalles convenientes. Se mencionan recomendaciones a los docentes para el diseño de estrategias didácticas que favorezcan en los estudiantes la comprensión del fenómeno ondulatorio y su propagación.Imprensa Universitária - UFSC2019-12-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2019v36n3p63010.5007/2175-7941.2019v36n3p630Caderno Brasileiro de Ensino de Física; v. 36 n. 3 (2019); 630-6592175-79411677-2334reponame:Caderno Brasileiro de Ensino de Física (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCspahttps://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2019v36n3p630/42063Copyright (c) 2019 Caderno Brasileiro de Ensino de Físicainfo:eu-repo/semantics/openAccessGiorgi, Silvia MaríaMarino, Luis AlbertoCarreri, Ricardo AntonioCámara, Cristina Noemí2019-12-06T19:08:37Zoai:periodicos.ufsc.br:article/60630Revistahttp://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:2019-12-06T19:08:37Caderno Brasileiro de Ensino de Física (Online) - Universidade Federal de Santa Catarina (UFSC)false |
dc.title.none.fl_str_mv |
Difficulties experienced by university students in the conceptualizations of basic parameters from the equation of mechanical waves and their treatments in physics textbooks Dificultades en estudiantes universitarios acerca de las conceptualizaciones de los parámetros básicos en la ecuación de ondas mecánicas y sus tratamientos en libros de Física |
title |
Difficulties experienced by university students in the conceptualizations of basic parameters from the equation of mechanical waves and their treatments in physics textbooks |
spellingShingle |
Difficulties experienced by university students in the conceptualizations of basic parameters from the equation of mechanical waves and their treatments in physics textbooks Giorgi, Silvia María |
title_short |
Difficulties experienced by university students in the conceptualizations of basic parameters from the equation of mechanical waves and their treatments in physics textbooks |
title_full |
Difficulties experienced by university students in the conceptualizations of basic parameters from the equation of mechanical waves and their treatments in physics textbooks |
title_fullStr |
Difficulties experienced by university students in the conceptualizations of basic parameters from the equation of mechanical waves and their treatments in physics textbooks |
title_full_unstemmed |
Difficulties experienced by university students in the conceptualizations of basic parameters from the equation of mechanical waves and their treatments in physics textbooks |
title_sort |
Difficulties experienced by university students in the conceptualizations of basic parameters from the equation of mechanical waves and their treatments in physics textbooks |
author |
Giorgi, Silvia María |
author_facet |
Giorgi, Silvia María Marino, Luis Alberto Carreri, Ricardo Antonio Cámara, Cristina Noemí |
author_role |
author |
author2 |
Marino, Luis Alberto Carreri, Ricardo Antonio Cámara, Cristina Noemí |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Giorgi, Silvia María Marino, Luis Alberto Carreri, Ricardo Antonio Cámara, Cristina Noemí |
description |
In the initial university cycle, and forming part of the Mechanics contents, the study of the transverse mechanical waves is addressed by representing them mathematically through a harmonic function of two variables. This function involves characteristic parameters whose nature is not easily understood by students. We present a study about the learning achieved by students from different scientific-technological careers, regarding the meanings of amplitude, frequency, the speed of propagation, wavelength and initial phase in this equation. Besides, we inquired about the treatment given to these parameters in Physics books which are frequently used in the initial cycle, observing if their physical origins are adequately explained. The study shows that students present difficulties in understanding the wave behavior from a phenomenological point of view, as well as in interpreting the physical meaning of the phase constant. Furthermore, we observed that not all the authors of the analyzed Mechanics books refer explicitly to them and with the necessary appropriate details. Recommendations about the design of didactic strategies that favour the understanding of the wave phenomenon and its propagation by students are given to teachers and professors. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-12-05 |
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/2175-7941.2019v36n3p630 10.5007/2175-7941.2019v36n3p630 |
url |
https://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2019v36n3p630 |
identifier_str_mv |
10.5007/2175-7941.2019v36n3p630 |
dc.language.iso.fl_str_mv |
spa |
language |
spa |
dc.relation.none.fl_str_mv |
https://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2019v36n3p630/42063 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2019 Caderno Brasileiro de Ensino de Física info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2019 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. 36 n. 3 (2019); 630-659 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 |
_version_ |
1799940574379245568 |