What is the physics of a ukulele

[Moose772]

If anyone could help that would be great

 

[rcgldr]

For stringed instruments, the strings generate nearly inaudible sounds, but vibrate some type of sound board (banjo, guitar, ukulele) or frame (harp, piano) which generates the sound, or they use electrical pickups (electric guitars, Rhodes piano) to send electrical signals to amplifiers.