4 concepts
Spherical and Plane Waves
Spherical waves come from point source in a spherical pattern; plane waves are infinite parallel planes normal to the phase velocity vector.
Standing Waves on a String
Standing wave occurs due to the interference when transverse waves in strings are reflected and the incident and reflected waves meet.
Standing Waves in Air Columns
Standing waves in air columns is the physical phenomenon that gives wind instruments their resonance and, therefore, sound.
Forced Vibrations and Resonance
The phenomenon of driving a system with a frequency equal to its natural frequency is called resonance.