Bibliographic Details
| Title: |
How to teach friction: Experiments and models. |
| Authors: |
Besson, Ugo1 ugo.besson@unipv.it, Borghi, Lidia1 borghi@fisicavolta.unipv.it, de Ambrosis, Anna1 deambrosis@fisicavolta.unipv.it, Mascheretti, Paolo1 |
| Source: |
American Journal of Physics. Dec2007, Vol. 75 Issue 12, p1106-1113. 8p. |
| Subjects: |
Friction, Aerodynamics, Mechanics (Physics), Dynamics, Phenomenological theory (Physics), Mathematical sequences, Mathematical models, Mathematical physics, Physics |
| Abstract: |
Students generally have difficulty understanding friction and its associated phenomena. High school and introductory college-level physics courses usually do not give the topic the attention it deserves. We have designed a sequence for teaching about friction between solids based on a didactic reconstruction of the relevant physics, as well as research findings about student conceptions. The sequence begins with demonstrations that illustrate different types of friction. Experiments are subsequently performed to motivate students to obtain quantitative relations in the form of phenomenological laws. To help students understand the mechanisms producing friction, models illustrating the processes taking place on the surface of bodies in contact are proposed. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
