Sound Full Chapter Class 8 Science | NCERT Science Class 8 Chapter 13

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✅ In this video,

✔️ Class: 8th
✔️ Subject: Science
✔️ Chapter: Sound
✔️ Topic Name: Sound Full Chapter Class 8 Science | NCERT Science Class 8 Chapter 13
✔️ Topics Covered in This Video: Full Chapter Explanation & Exercise from Class 8 Science Chapter 13 Sound
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0:00 Introduction to Sound
1:19 How to produce sound - Producing process of sound
7:24 Sound produced by humans - How to produce sound in Human Body
9:50 Activity - understanding for the working of vocal cords
10:48 Sound needs a medium for propagation
16:09 How hear sound through our ears
20:29 Properties of sound amplitude, time period, frequency
23:44 Properties of sound loudness and pitch
27:39 Which are audible and inaudible sounds
30:19 Noise pollutions
31:53 Measures to limit noise pollution
33:51 Solutions MCQ's
35:25 Solutions true and false
37:06 Solutions fill in the blanks
38:17 Solutions question answer
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Ad come in this video again and again was faster than sound 🤣

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[kavindutta]

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[PriyanshuKumar-ilnv]

13:15 Sound can travel in solid liquid and gas

[seaskyrabbitry]

Q. How is sound produced in Human Body? Ans= 1. In human body sound is produced by the VOICE BOX or the LARYNX. 2. When 2 vocal cords are stretched in such a way that, there was a NARROW SLIT between them for the PASSAGE OF AIR. 3. When the lungs force air through that narrow slit, the 2 vocal cords vibrate which produces sound. -By PRIYANSHU GAUR

[Rupalimore-jk]

- Sound is produce by voice box or larynx in human beings
- Two vocal cords are stretched across the voice box in such a way that it leaves a slit between them for the passage of air.
- When the Lungs force the air the vocal cords vibrates and produce the sound 🔊

[meditationmusicstudio]

In our throat we have larynx and vocal cords by which sound is produced

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