Noun
periodic motion in which the restoring force is proportional to the displacement
Source: WordNetExamples Simple pendulum A simple pendulum exhibits approximately simple harmonic motion under the conditions of no damping and small amplitude. Source: Internet
Mass on a spring A mass m attached to a spring of spring constant k exhibits simple harmonic motion in closed space. Source: Internet
Mechanical oscillators SHM, DHM, SHO, and DHO refer to simple harmonic motion, damped harmonic motion, simple harmonic oscillator and damped harmonic oscillator respectively. Source: Internet
Thus simple harmonic motion is a type of periodic motion. Source: Internet
While simple harmonic motion oscillates with only the restoring force acting on the system, damped harmonic motion experiences friction. Source: Internet