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  2. byjus.com › cbse-notes › cbse-class-8-science-notesChapter 13 Sound Class 8 Notes - Extra Questions - BYJU'S

    In Class 8 Chapter 13 Sound Notes, the properties of sound and how sound is perceived by humans are discussed. Also, provided here is the extra questions for the chapter.

  3. www.learncbse.in › sound-class-8-notesSound Class 8 Notes Science Chapter 13 - Learn CBSE

    Jan 24, 2024 · Voice Box: Upper end of the windpipe, below the hard part on the throat is called the voice box. Windpipe: It is the passage for the inlet and outlet of air in the lungs. We hope the given CBSE Class 8 Science Notes Chapter 13 Sound Pdf free download will help you.

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  5. www.netexplanations.com › sound-class-8-notesCBSE Notes for Class 8 Science Chapter 13 - Net Explanations

    Oct 18, 2021 · The larynx or the sound box produces voice. It is a hard bump like structure on the throat which appears to move when one swallow and is at the upper end of the windpipe. This part is known as the voice box. The larynx has two vocal cords stretched across it, in such a way that it leaves a narrows lit between them for the passage of air.

  6. www.askiitians.com › revision-notes › class-8Sound CBSE Class 8 Science Revision Notes Chapter 13 - askIITians

    Human beings have a voice box or larynx which is present in their throat on the upper side of the windpipe. The larynx has two vocal cords which have a narrow slit between them so that air can pass through it.

  7. www.studyrankers.com › 2017 › 11Notes of Ch 13 Sound| Class 8th Science - Study Rankers

    Nov 6, 2017 · → In humans, sound is produced by voice box or larynx. → When the lungs force air through the slit, the vocal cord vibrates which produce sound. → Sometimes, the amplitude of produced sound is so small that we can't hear them.

  8. www.learncbse.in › ncert-solutions-for-class-8NCERT Solutions for Class 8 Science Chapter 13 Sound

    Aug 12, 2024 · Two vocal cords are stretched across the voice box or larynx in such a way that it leaves a narrow slit between them for passage of air (Fig. 13.12). When lung force air through the slit, the vocal cords vibrate, producing sound.

  9. inspiritvr.com › cbse-class-8-science-chapter-13CBSE Class 8 Science Chapter 13 Revision Notes - Inspirit

    Mar 28, 2023 · In humans, the sound is produced by the voice box or the larynx (the vibrations of the vocal chords). Sound is transmitted through a medium (gas, liquid, or solid). It will not be able to travel in a vacuum. The eardrum detects sound waves. Vibrations are sent to the inner ear. The signal then travels to the brain. That’s what we’ve heard.