Smartphone-based measurement of magnetic force and demonstration of Newton’s third law of motion

• Autores: Sanjoy Kumar Pal, Soumen Sarkar, Pradipta Panchadhyayee
• Localización: The Physics Teacher, ISSN 0031-921X, Vol. 62, Nº. 5, 2024, págs. 404-405
• Idioma: inglés
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• Resumen

  • A fascinating approach to teaching Newton’s third law using readily available technology is presented in this article. Magnetic forces are measured by using a smartphone’s pressure sensor, two ring magnets, and common household items. Students can measure the magnitudes of forces, gain a more tangible understanding of the law, and see how “action” and “reaction” are quantitatively equal and opposite.