Résonances

Resonance occurs when a system naturally vibrates at a specific frequency, known as its resonance frequency. When an external force matches this frequency, it causes the system to oscillate with increased amplitude. A common example is pushing a swing: timing your pushes to match the swing’s natural rhythm amplifies its motion. In physics and engineering, resonance explains phenomena like musical instrument vibrations or structural stress, where closely matching frequencies can enhance effects or cause damage. Understanding resonance helps in designing buildings, bridges, and devices to avoid unwanted vibrations or to harness them effectively.