Question

Make a list of five musical instruments. State how each of them produces sound.

Musical instrument	The way it produces sound

Answer 1

Hint: We know that sound is produced by vibrating objects. When an object vibrates it sets the particles of the medium around it vibrating. Various instruments produce the melody sound by the vibration of strings, vibration of a membrane, vibration of the air column.

Complete step by step solution:
(i) We can define sound as the form of energy that produces a sensation of hearing in our ears.
(ii) medium is called the substance through which sound waves travel. The medium is of various kinds. It can be a solid, liquid, or gas.
(iii) The Sound propagates through it moves from the point of generation or the source to the listener. For example, radio is a source of the sound, and the ear of the listener acts as the receiver of the sound.
(iv) A particle of the medium in contact with the vibrating object is first displaced from its equilibrium position. Then it exerts a force on the adjacent particles. As a result, these adjacent particles get displaced from their position of rest.
(v) Here particles in the medium transfer’ its energy from one particle to another particle by vibration. There is no movement of particles from one place to another.
(vi) We can take the example of guitar strings. When these strings are vibrated using hand movement it produces a melodious sound that soothes the mind. Different instruments produce sound based on the vibration of a membrane, air, or strings.
(vii) On this prior information, let's fill the chart given:

Musical instrument	The way it produces sound
Harmonium	the vibration of air
Table	the vibration of the membrane
Sitar	the vibration of the string
Flute	the vibration of the air column
Violin	the vibration of the stretched string

Additional information:
A wave is a disturbance that moves through a medium when the particles of the medium set neighboring particles into motion. The particles carry the disturbance forward but they do not move forward by themselves. Sound travels through the air most. There are a few characteristics of the sound wave. They are frequency, amplitude, speed, wavelength, intensity, quality of sound.

Note:
(i) Sounds need a medium for the propagation of it.
(ii) It cannot travel through a vacuum.
(iii) Sound waves are longitudinal waves.