A Broom to Sweep some Pre-concepts and Introduce the Torque Concept

  • M. Fonseca Universidad Distrital Francisco José de Caldas, Bogotá-Colombia
  • A. Hurtado Márquez Universidad Distrital Francisco José de Caldas, Bogotá-Colombia

Abstract

If a body is cut vertically passing through its center of gravity, it seems surprisingly easy to suppose that its parts have the same weight. It’s necessary “to sacrifice” a broom to show that the common sense is not right, to see that the difference of weight is more than the error of cutting. The experiment surprises the students and leads them to think on alternative explanations, giving occasion to introduce the concept of torque. We also give another related example that attempt against the common sense.

Published
Jun 20, 2007
How to Cite
FONSECA, M.; HURTADO MÁRQUEZ, A.. A Broom to Sweep some Pre-concepts and Introduce the Torque Concept. Revista Cubana de Física, [S.l.], v. 24, n. 1, p. 69-71, june 2007. ISSN 2224-7939. Available at: <https://revistacubanadefisica.org/index.php/rcf/article/view/RCF_24_1_69>. Date accessed: 05 dec. 2022.