Physics, asked by akshara1122, 1 year ago

Give brief note about characteristics of sound and musical instruments

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Answered by myprofile88
5
Characteristics of Sound

The sound that we hear around us is the type of energy made by the vibration that travels through the air or any other medium and can be heard when it reaches a person’s ear.  So, basically sound helps us to communicate with the other person. For example, we can hear the musical instruments like tabla, flute, a guitar due to vibration. The characteristics of sound are as follows:

Pitch

Loudness

Quality



Vibrating Parts of Musical Instruments

Veena – Stretched string

Tabla – Stretched membrane

Drum – Stretched membrane

Shehnai – Air Column

Flute – Air Column

Pitch

Pitch is a characteristic of sound by which a correct note can be distinguished from a grave or a flat note. We can identify a female and male voice without seeing them. The term ‘pitch’ is often used in music. Pitch depends upon the frequencies of the sound wave. A note has a higher pitch when the frequency is high and a note of low frequency has a low pitch. For example, when a small baby speaks something, his/her voice has a higher frequency so in case of a baby the pitch is higher than the pitch of a man. The sound with a high frequency is called as shrill.

Loudness

The loudness is a sensation of how strong a sound wave is at a place. It is always a relative term and is a dimensionless quantity. Loudness is measured in decibel (dB). It is given as:
L = log(I), here ‘I’ is the intensity.
The loudness depends on the amplitude of the vibration. It will be louder when the amplitude is high. Suppose when we pluck a string of the sitar it starts vibrating with low amplitude and if we apply more energy by plucking more strongly, the string will vibrate with the greater amplitude and produce a loud sound. As the amplitude of vibration increases, sound also increases.

Quality

The word timbre also describes the term quality. As different sources produce different sounds, the timbre helps us to distinguish between them. A sound of good quality is pleasant to listen. The instruments are of different shapes and size and they produce different harmonics of loudness hence their sound can be easily distinguished.

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Answered by ffdzasd
1
as we learn about the the to and fro motion of an object is known as vibration.in an object producing sound the vibration are sorry for that we cannot observed and properly we can also produce lower vibration also called oscillation by hanging a bell from the tree is called the simple pendulum
when the bob is given to a small push it perform a to and fro motion for sometime and ultimately stop the position where the ball stop is equal mean position or equilibrium position

musical instruments are used to produce various types of music.in musical instrument different types of vibration are used to produce different types of music.on the basis of vibration pad used musical instrument can be divided in three main kinds :
1.
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