The Versatile Tilting-Plane Method of Measuring Coefficients of Friction Between Various Contacts

• Shuo Zhao ^[1] ; Guang Yang ^[1] ; Fengshan Huang ^[1]
  1. [1] Hebei University of Science and Technology

     Hebei University of Science and Technology

     China

     
• Localización: The Physics Teacher, ISSN 0031-921X, Vol. 62, Nº. 6, 2024, págs. 491-493
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • Friction is an indispensable chapter in mechanics textbooks. It usually covers static friction, kinetic friction, rolling resistance, and so on. Many apparatuses can be used to measure the coefficients of friction, such as the static friction µs, kinetic friction µk, and rolling resistance CR. However, there are few experiments demonstrating the properties of friction for teaching. The tilting-plane method is often used to measure the static friction coefficient in classroom teaching. On the other hand, there are some experimental methods that can measure the friction coefficients for rolling objects, such as spheres and cylinders. This paper presents an improved tilting-plane method, which can measure these coefficients, i.e., µs, µk, and CR, for both sliding and rolling frictions from one test. The corresponding setup is easy to build, and suitable for classroom experiments.