Modelo pedagógico de resistores elétricos para descrever fraturas em sistemas físicos
Carregando...
Data
2018-08-09
Autores
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Federal de Goiás
Resumo
The present dissertation is the result of the educational, “Teaching model of electrical
resistors to describe fractures in physical systems”, product worked in a class of the third
year of high school of the State School Prof. Marcolino de Barros of the municipality of Patos
de Minas-MG. In which, we present a simple pedagogical model with the purpose of studying
the complex process of ruptures in physical systems. For this, we developed an experimental
model together with its theoretical counterpart where we consider a system of electric
resistors network subject to a potential difference and analyze the current that passes
through the system as a function of the random removal of their resistive components. We
use a circuit board, voltage source stabilized at a pre-established potential difference, and a
resistor network with a few ohms units each. After the proposed experiments are executed,
we obtained appropriate experimental data and from these graphs are generated with which
the dependence of the current through the circuit with the interruption of the joints is shown.
Taking into account that this system behaves as an ohmic system, the model is used to study
several relevant physical concepts. As is the case of an elastic solid subject to Hooke’s law-
like deformations, this is then a very broad model.
Descrição
Palavras-chave
Fraturas em sólidos, Lei de Hooke, Rede de resistores, Sistemas ôhmicos, Fenômenos críticos, Fractures in solids, Hooke’s law, Resistor’s networks, Ohmic systems, Critical phenomena
Citação
CUNHA, Airton Modesto da. Modelo pedagógico de resistores elétricos para descrever fraturas em sistemas físicos. 2018. 128 f. Dissertação (Mestrado em Ensino de Física em Rede) - Universidade Federal de Goiás, Catalão, 2018.