Experimental activities for the study of transformation of electrical energy into thermal

Abstract

In this article, three experimental practices involving transformations of electrical energy into thermal energy using the Joule effect, electromagnetic induction, and the Peltier effect were proposed. Furthermore, energy balance calculations and the demonstration of the induction heating process are performed using a zero voltage switching module coupled to an Arduino board. In this sense, the work verifies the pedagogical potential of the activities applied in two classes of the third grade of high school, in the face-to-face class format. A qualitative research methodology was adopted, and for data collection, questionnaires were used to survey the students’ prior knowledge, which, at the end of the activities, were applied again to identify a possible integrating reconciliation on the content. We hope that with this proposal, we can contribute to other Physics teachers, who can replicate these activities with their students, adapting it to their realities.