Resonance

Definition

Resonance occurs when a system is driven at its natural frequency, causing it to oscillate with maximum amplitude. It is a phenomenon observed in various physical systems where the input energy is efficiently transferred.

5 Must Know Facts For Your Next Test

1. Resonance can cause large oscillations and potentially destructive forces if not controlled.
2. The natural frequency of a system is the frequency at which it tends to oscillate in the absence of any driving or damping force.
3. In mechanical systems, resonance can be observed in structures like bridges and buildings during earthquakes.
4. Electrical circuits can exhibit resonance when inductive and capacitive reactances cancel each other out at a particular frequency.
5. Damping reduces the amplitude of resonant oscillations and helps stabilize systems experiencing resonance.

Review Questions

Related terms

Natural Frequency:

The frequency at which a system oscillates when not subjected to continuous or repeated external forces.

Damping:

A force that reduces the amplitude of oscillations, often due to friction or resistance.

Forced Oscillation: $Oscillatory$ motion that occurs when an external periodic force drives a system.