Explain how sound is produced by your school bell

Q 1. How does the sound produced by a vibrating object in a medium reach your ear? SOLUTION: When a disturbance is created on an object, it starts vibrating and sets the particles of the medium to vibrate. The particle of the medium is displaced from its mean position and exerts a force on the adjacent particle. As a result, the adjacent particle is disturbed from its mean position and the original particle comes back to rest. This process continues till the disturbance reaches our ear. Q 2. Explain how sound is produced by your school bell. SOLUTION: When the school bell is struck with a hammer, it starts vibrating and as a result of these vibrations, sound waves are produced. Q 3. Why are sound waves called mechanical waves? SOLUTION: Waves which need a material medium for propagation are called mechanical waves. Since sound waves also need a material medium for propagation, these waves are called mechanical waves. Sound wave are called mechanical waves or elastic waves as these are produced in a deformable or elastic medium. Unlike electromagnetic waves, sound waves need a medium to sustain them. Mechanical waves are governed by Newton’s laws of motion. Q 4. Suppose you and your friend are on the moon. Will you be able to hear any sound produced by your friend? SOLUTION: No we will not be able to hear the sound because sound requires a medium for its propagation. On the moon there is no atmosphere, i.e., there is vacuum. Q 5. Which wave property determines (A) loudness,...