Physics
Simple Harmonic Motion (SHM)
Quick fact
A mass attached to a spring will oscillate forever if there is no friction—a classic example of simple harmonic motion.
Why this is interesting
Have you ever noticed how a pendulum swings back and forth with perfect rhythm? What makes it move in such a consistent way?
Read the full explanation
Understanding Simple Harmonic Motion (SHM)
Imagine pushing a child on a swing. The swing moves back and forth around the center point, speeding up as it approaches the peak and slowing down as it comes back. This is similar to how objects in SHM move—always pulled back toward an equilibrium position by a restoring force.
A deeper explanation
Simple harmonic motion is governed by a restoring force that is directly proportional to the displacement from the equilibrium point and acts in the opposite direction of the displacement. This creates a periodic, repetitive motion where energy continuously converts between kinetic and potential forms, making SHM a fundamental model for oscillatory systems.