(a)
The vibrating object that produce sound in human voice.
(a)
Answer to Problem 17PP
Vocal cords
Explanation of Solution
Introduction:
Sound is the form of energy which is produced by the vibrations of object about its mean position. In another way, it can be also defined as it a type of vibrations which travels through the medium or air as mechanical audible wave.
The vibrating object forces medium around it to vibrate,so it creates movement in the molecules present in its surrounding. These molecules make collisions with the other neighbor molecules and transfer energy from one molecule to another. This way the sound energy moves from one place to another.
In human, the primary source of sound is vocal cord. When human speaks, the air starts flowing from lungs and it comes through the narrow slit of throat and it cause vibrations of vocal cords.
This way human produces sound.
(b)
The vibrating object that produce sound in clarinet.
(b)
Answer to Problem 17PP
Reed
Explanation of Solution
Introduction:
Sound is the form of energy which is produced by the vibrations of object about its mean position. In another way, it can be also defined as it a type of vibrations which travels through the medium or air as mechanical audible wave.
The vibrating object forces medium around it to vibrate, so it creates movement in the molecules present in its surrounding. These molecules make collisions with the other neighbor molecules and transfer energy from one molecule to another. This way the sound energy moves from one place to another.
Clarinet is the instrument made up of wood. When the air is blown in between the mouthpiece and the single reed, fluid sound is produced.
Player presses the keys with his fingers and is be able to produce various notes very quickly.
Hence, reed in the clarinet plays a very vital role as it makes the air blown into the clarinet and vibrates.
(c)
The vibrating object that produce sound in a tube.
(c)
Answer to Problem 17PP
Player's Lips
Explanation of Solution
Introduction:
Sound is the form of energy which is produced by the vibrations of object about its mean position. In another way, it can be also defined as it a type of vibrations which travels through the medium or air as mechanical audible wave.
The vibrating object forces medium around it to vibrate, so it creates movement in the molecules present in its surrounding. These molecules make collisions with the other neighbor molecules and transfer energy from one molecule to another. This way the sound energy moves from one place to another.
Tube is an instrument made up of brass. Sound from this instrument originates from the vibrating column of air inside it. When the air is blown through the funnel shapes (mouthpiece) of the instrument, this column starts vibrating, and sound is produced.
Hence, player’s lips produce sound in tuba
(d)
The vibrating object that produces sound in a violin.
(d)
Answer to Problem 17PP
Strings
Explanation of Solution
Introduction:
Sound is the form of energy which is produced by the vibrations of object about its mean position. In another way, it can be also defined as it a type of vibrations which travels through the medium or air as mechanical audible wave.
The vibrating object forces medium around it to vibrate, so it creates movement in the molecules present in its surrounding. These molecules make collisions with the other neighbor molecules and transfer energy from one molecule to another. This way the sound energy moves from one place to another.
Spectacular sound is produced through the vibration of the string. A bowed string starts vibrating and moves in a circular motion that creates the fundamental tone.
Hence, string produce sound in violin.
Chapter 15 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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