Electric energy in simple direct current circuits. Macroscopic and microscopic analysis of university students
The work objective is carried out a study about the comprehension achieved byundergraduate engineering students concerning energy processes in simple DC circuits. The methodology used in the research consisted of a first "exploratory" stage of more qualitative characteristics, which allowe...
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| Autores principales: | , |
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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Asociación de Profesores de Física de la Argentina
2019
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| Acceso en línea: | https://revistas.unc.edu.ar/index.php/revistaEF/article/view/26903 |
| Aporte de: |
| Sumario: | The work objective is carried out a study about the comprehension achieved byundergraduate engineering students concerning energy processes in simple DC circuits. The methodology used in the research consisted of a first "exploratory" stage of more qualitative characteristics, which allowed us to state working hypotheses. In a second stage, of a more quantitative nature, written questionnaires were developed and administered to the students in order to experimentally test the formulated hypotheses. The research shows, on one hand, that many students do not adequately interpret some energy exchanges on a macroscopic basis. On the other hand, it also shows that they do not link (or they incorrectly link) macroscopic and microscopic interpretations of the proc-esses that energy undergoes in the circuit. Possible reasons are suggested for the detected mistakes; among them, the shortage of bibliography on the subject, the use of non-scientific modes of reasoning, the poor differentiation between the transitory and stationary stages that the circuits undergo, or the lack of discrimination between macroscopic and microscopic analysis. |
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