Question

why are bells made of metals and not from wood

Answer 1

The answer :

★ Most bells are made of metal because of the resonance of the metal bell, combined with a metal clapper. The is sound is more profound and carries further than a similar bell made of wood. Most wood have a cellular structure that lends itself to damping the sound, not enhancing it.

And also according to the physical properties metals..
They are highly sonorous i.e they produce a good ringing sound if striked but woods are not sonorous and can't produce that much of sound.

★BE BRAINLY★

Answer 2

There are other objects meant to vibrate in a bell-like way that are not made of metal. The most bell-like in sound is an instrument or instruments called Angklung in Thai. ... Metals used for bells are specially designed alloys that make a nice ringing sound. Small bells may be made of glass or ceramic.