65 resultados para eletromagnetismo
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In this work we study the behavior of the falling motion of neodymium magnets, inside conductive a metallic duct made of copper, aluminum, brass and bronze. We obtain, analyze and present results involving relationships between material and dynamical properties of falling neodymium magnets with the mechanical and electrical properties of conductive materials, such as mass, electrical resistivity, electrical conductivity, length and external diameter
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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This monograph has the inspiring theme using Comic Books in physics education. The Comic Books are objects, which are part of our current daily life, in newspaper, magazines, comics and electronic media, and providing entertainment to the readers. Beyond this property, the ludic nature and linguistics become an interesting material when applied on Education. Our goal was to research an analyze a Comic Book that could be used in a Physics class. The chosen material was Astronauta Magnetar from Danilo Beyruth. With this Comic Book, we perform a short course with students from three High School grade, where the themes of labor were Astrophysics and Electromagnetism. From the results of this short course, we prepared a lot of comments and discussions about the role of Comic Books in a classroom, as an significant instrument for Physics Education
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In this work we present a didactic proposal of the use of movies and videos for the Physics teaching directed to the Basic Education and we bring a discussion about how the materials addresses this topic. For this, we selected three cinematographic works, one chapter of the TV show and videos found in the web and we analyse the physics concepts found particularly about the issue electromagnetism. We developed the activity denominated Cine - Física in a public school from Rio Claro - SP, through presentations of these movies, shows and videos. Those works were exhibited in full and then we discussed the concepts involved in these movies. With the perform of this didactic proposal we verified that is possible insert the use of movies and videos in the classroom activities, and go beyond the entertainment or using those materials as supplements of classes. Dialoguing with students was possible to realize that they visualize the effects and physical concepts in a different way than other that used to be shown in the blackboard through formulas, providing positive effects to the learning of Physics
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The use of geophysical methods in the analysis and mapping of likely contamination plumes has shown a huge value in the development of researches related to environmental issues. Among the main geophysical methods applied to this purpose, the geoelectrical methods stand out, being based on the use of electric and electromagnetic fields. The electromagnetic method (EM) uses physical environment responses created by electromagnetic field propagation, consisting of an alternated electric output and a magnetization force, used to obtain the electric conductivity (σ) of the subsurface materials. It has a broad application in the mineral exploration and prospection, and its use has been also efficient in environmental researches. By the electromagnetic method, this work examined and mapped possible contaminations created by cemetery leachate in the Saudade's Cemetery, located in the city of Monte Alto, Sao Paulo, where sedimentary rocks of the Bauru Group are exposed. Cemetery leachate is a putrefactive liquid, generated from the decomposition of organic matter, which contains substances that can contaminate soil and groundwater. Results achieved in this work show that the use of the electromagnetic method is an important indirect tool in the investigation of environmental contaminations in areas with highly contrasting physical properties
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Pós-graduação em Física - IFT