Wave Motion
A wave carries energy and a pattern through space or a medium. The material in the medium may oscillate around equilibrium without traveling along with the wave. This lesson supports Chapter 14 of Physics for Beginners. Keep the physical picture in view, write the units, and check the direction of every vector before trusting a […]
Oscillations, Springs, and Pendulums
A swing, a vibrating ruler, and a mass on a spring all repeat motion around an equilibrium position. The details differ, but period, frequency, amplitude, and restoring force organize every case. This lesson supports Chapter 13 of Physics for Beginners. Keep the physical picture in view, write the units, and check the direction of every […]
