Análise da transmissão de uma bicicleta a partir de um smartphone: uma proposta didática para o ensino de física.

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Bibliographic Details
Title:	Análise da transmissão de uma bicicleta a partir de um smartphone: uma proposta didática para o ensino de física.
Authors:	Machado, Cassiana Hygino Barreto¹ cassiana.h.machado@iff.edu.br, Filho, Milton Baptista¹
Source:	Latin-American Journal of Physics Education. Mar2024, Vol. 18 Issue 1, p1-10. 10p.
Subject Terms:	High school curriculum, Case method (Teaching), *Physics teachers, Cycling, Fourier series
Abstract (English):	This work presents a didactic activity that was applied to a group of teachers from a municipal education network undergoing an update course in the first half of 2023. The proposal aims to spread the use of smartphones as an important resource in carrying out experimentation in the classroom. It uses the case study method that deals with the theme of urban transport and the role of bicycles as an individual mode of transport. Bicycling is a significant means of transport and a popular sport and at the same time a sport that at the professional level involves a lot of technology and precision. Cycling is a sport that brings an important application of circular movement and is an interesting application case covered in high school physics courses and undergraduate courses. In the practical experimental activity proposed in this work, a smartphone is used to measure the gear ratio of a bicycle based on the magnetic field of a magnet attached to the rear wheel. The magnetic field signal applied to each proposed transmission ratio was applied from a periodic function and this function applied to the Fourier Series. The results showed that the smartphone was able to accurately measure the expected relationships of the bicycle and highlight the relevance of using a smartphone's sensors in conjunction with Phyphox as an important means of collecting data and obtaining graphical responses in physics practices, allowing a deeper understanding of the physical principles involved and enriching teaching and research in this area. The didactic proposal presented, combining the case study method with experimental practice, can significantly contribute to teacher training and physics teaching in high schools without properly equipped laboratories, offering a more interactive and meaningful learning experience. [ABSTRACT FROM AUTHOR]
Abstract (Spanish):	Este trabalho apresenta uma atividade didática que foi aplicada a um grupo de professores de uma rede municipal de ensino em curso de atualização no primeiro semestre de 2023. A proposta visa difundir o uso do smartphone como recurso importante na realização de experimentação em sala de aula. Ela utiliza o método de estudo de caso que trata da temática do transporte urbano e da função das bicicletas como modal individual de transporte. A bicicleta é um meio de transporte significativo e um esporte popular e ao mesmo tempo um esporte que no nível profissional envolve muita tecnologia e precisão. O ciclismo é um esporte que traz uma aplicação importante do movimento circular e trata de um caso interessante de aplicação abordado em cursos de física do ensino médio e nos cursos de licenciatura. A atividade prática experimental proposta neste trabalho, um smartphone é utilizado para medir a relação de transmissão de uma bicicleta a partir do campo magnético de um ímã preso à roda traseira. O sinal do campo magnético observado para cada relação de transmissão proposta foi analisado a partir de uma função periódica e esta função aplicada à Séries de Fourier. Os resultados mostraram que o smartphone foi capaz de medir com precisão as relações esperadas da bicicleta e ressaltam a relevância do uso dos sensores de um smartphone em conjunto com o Phyphox como um meio importante para coletar dados e obter respostas gráficas em práticas de física, permitindo uma compreensão mais aprofundada dos princípios físicos envolvidos e enriquecendo o ensino e a pesquisa nessa área. A proposta didática apresentada, aliando o método de estudo de caso a uma prática experimental pode contribuir significativamente para a formação docente e o ensino de física em escolas de ensino médio desprovidas de laboratórios devidamente equipados, oferecendo uma experiência de aprendizado mais interativa e significativa. [ABSTRACT FROM AUTHOR]
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Database:	Education Research Complete

Description
Abstract:	This work presents a didactic activity that was applied to a group of teachers from a municipal education network undergoing an update course in the first half of 2023. The proposal aims to spread the use of smartphones as an important resource in carrying out experimentation in the classroom. It uses the case study method that deals with the theme of urban transport and the role of bicycles as an individual mode of transport. Bicycling is a significant means of transport and a popular sport and at the same time a sport that at the professional level involves a lot of technology and precision. Cycling is a sport that brings an important application of circular movement and is an interesting application case covered in high school physics courses and undergraduate courses. In the practical experimental activity proposed in this work, a smartphone is used to measure the gear ratio of a bicycle based on the magnetic field of a magnet attached to the rear wheel. The magnetic field signal applied to each proposed transmission ratio was applied from a periodic function and this function applied to the Fourier Series. The results showed that the smartphone was able to accurately measure the expected relationships of the bicycle and highlight the relevance of using a smartphone's sensors in conjunction with Phyphox as an important means of collecting data and obtaining graphical responses in physics practices, allowing a deeper understanding of the physical principles involved and enriching teaching and research in this area. The didactic proposal presented, combining the case study method with experimental practice, can significantly contribute to teacher training and physics teaching in high schools without properly equipped laboratories, offering a more interactive and meaningful learning experience. [ABSTRACT FROM AUTHOR]
ISSN:	18709095