Measuring the Force between Magnets as an Analogy for Coulomb’s Law

Autor: Samuel P. Hendrix, Stephen G. Prilliman
Rok vydání: 2018
Předmět:
Zdroj: Journal of Chemical Education. 95:833-836
ISSN: 1938-1328
0021-9584
DOI: 10.1021/acs.jchemed.7b00580
Popis: A brief demonstration is described that measures the force between magnets as an analogy for the force between charged particles to introduce the functional form of Coulomb’s law. One magnet is mounted on a digital force probe while another is systematically moved to different distances to measure the force as a function of distance. The force probe and magnets are held in place with plastic interlocking building bricks. The demonstration is used as an analogy to introduce students to the physics of electrostatic forces, a foundational principle for understanding chemical phenomena such as ionization energy, bonding, intermolecular forces, and lattice energy.
Databáze: OpenAIRE