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How is Sound Produced by Humans? Video Lecture - Class 8

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1. How is sound produced by humans?

Ans. Sound is produced by humans through the vibration of vocal cords in the larynx. When we speak or sing, air from our lungs is forced through the vocal cords, causing them to vibrate. These vibrations create sound waves that travel through the air and reach our ears, allowing us to hear the sound.

2. What are vocal cords?

Ans. Vocal cords, also known as vocal folds, are two small bands of elastic muscle tissue located in the larynx (voice box). They are responsible for producing sound when air passes through them and causes them to vibrate. The tension and thickness of the vocal cords determine the pitch and quality of the sound produced.

3. What happens when we speak or sing?

Ans. When we speak or sing, air from our lungs is pushed out and passes through the vocal cords in the larynx. The vocal cords vibrate and produce sound waves. These sound waves then travel through the throat, mouth, and nasal passages, where they are shaped into specific sounds by the movements of our tongue, lips, and other articulators.

4. How can we change the pitch of our voice?

Ans. We can change the pitch of our voice by altering the tension and thickness of our vocal cords. When the vocal cords are stretched and thin, they vibrate faster and produce higher-pitched sounds. Conversely, when the vocal cords are relaxed and thick, they vibrate slower and produce lower-pitched sounds. By adjusting the tension and thickness of our vocal cords, we can produce a wide range of pitches.

5. Can anyone produce sound using their vocal cords?

Ans. Yes, almost everyone is capable of producing sound using their vocal cords. However, certain medical conditions or physical abnormalities can affect the functioning of the vocal cords and make it difficult for some individuals to produce sound. In such cases, medical intervention or therapy may be required to address the issue and restore the ability to produce sound.

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How is Sound Produced by Humans? for Class 82024 is part of Class 8 preparation. The notes and questions for How is Sound Produced by Humans? have been prepared according to the Class 8 exam syllabus. Information about How is Sound Produced by Humans? covers all important topics for Class 82024 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for How is Sound Produced by Humans?.

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