Question

(5) Explain why bells are made of metal or their alloys but not of wood ??​

Answer 1

Answer:

because metals make much noise than the woos makes

Answer 2

Complete Answer:

Bells are made of metals and not of woods because of two reasons which we will discuss below.

For starters, the materials used to make the bell should be sonorous. A material is called sonorous when it is capable of producing a ringing of sound. Metals are generally sonorous, you must have heard the sound of two metal objects or parts colliding in your day to day life. Whereas, wood is not sonorous and does not produce a ringing sound when struck.

The second reason why the bells are not made of wood and are made of metal because when a bell made of metal is struck the particles that make up the bell start to vibrate, metals can sustain these vibrations for a longer duration leading to the ringing sound. Since, vibrations mean that the particles are going back and forth around a fixed position, due to this behavior we can also say that metals have elastic properties (because elastic materials can also return to their original position after being displaced from it). The particles of a wooden bell when struck also vibrate but wood is not able to sustain these vibrations for longer durations and the vibrations quickly dampen.

The bells are made out of metal and not wood because metals are sonorous, have elastic-like properties, and can sustain vibrations for longer durations than wood.