Answer:
Simple harmonic motion refers to the repetitive back-and-forth motion of an object around a stable equilibrium position. It occurs when the restoring force on the object is directly proportional to its displacement from the equilibrium position, and the motion follows a sinusoidal pattern. Examples of simple harmonic motion include the swinging of a pendulum or the oscillation of a mass-spring system. It's a fascinating concept in physics! Let me know if you have any more questions.