Abstract This experiment was led to further our insight into the idea of simple harmonics motion. Harmonic motion is the periodic motion through a position repetitively. Restoring force is the ype of force that causes this movement, which follows the Hooke's' Law. This concept is demonstrated utilizing pendulums and mass-spring systems which are both known to undergo a simple harmonic motion. To inspect the pendulum, various kinds of balls were appended to a tring. Then, at that point, the periods were assessed at various amplitudes and lengths of the