In this chapter, we look at oscillating systems that undergo “simple harmonic motion”, such as the motion of a mass attached to a spring. Many systems in the physical world, such as an oscillating pen...In this chapter, we look at oscillating systems that undergo “simple harmonic motion”, such as the motion of a mass attached to a spring. Many systems in the physical world, such as an oscillating pendulum, can be described by the same mathematical formalism that describes the motion of a mass attached to a spring.