Damping and Resonance

Natural frequency

Frequency of the system when there is no external force or forces acting on it

Damping

The decrease of amplitude of an oscillating system

A condition that causes an oscillating system to experience damping

When its energy is lost to the surroundings as heat energy

Internal damping

An oscillating system loses energy due to the extension and compression of the molecules in the system

External damping

An oscillating system loses energy to overcome frictional force or air resistance that act on it

Force oscillation

Oscillation with the help of external force or forces

Resonance

In a force oscillation, if the frequency of the external force is equal to the natural frequency of the system, the system will oscillates with maximum amplitude

Applications of resonance

To tune radio or television

The uses of Barton's pendulum system

Can demonstrate the characteristic of resonance

Example of Resonance

Opera singer breaks a wine glass with her voice

Physics

Question

Damping and Resonance

Damping and Resonance