ENERGY AND ITS CONSERVATION. APPLICATION IN A PROBLEMATIC SITUATION

• Main Authors: María Teresa Perrotta, Beatriz Rosario Follari, Gilda Noemí Dima, Elena Ester Gutiérrez
• Format: Article
• Language: Spanish
• Published: Universidade Federal de Santa Catarina (UFSC) 2010-03-01
• Series: Caderno Brasileiro de Ensino de Física
• Subjects: conservación de la energía; propuesta didáctica; situación problemática; sistema en estudio.
• Online Access: https://periodicos.ufsc.br/index.php/fisica/article/view/13230

From investigations developed in the 1980's decade about the teaching of work and energy, some texts of frequent use have been modified. It is presented a problematic situation that may help to understand the conservation of energy in which we consider: the election of different limits for the system, the movement of the mass center, the internal movements and the internal energy for the system of particles. The problem could be proposed to students of basic university mechanics courses. It is developed a complete solution that may be taken into account as an example of the application of the before mentioned concepts that, we hope, could be of great use for other teachers.