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👉Previous Video: • What is Sound? and Production of Sound - S... 👉Next Video: • Characteristics of Sound - Amplitude | Sou... ✔️📚👉 Watch Full Free Course:- https://www.magnetbrains.com ✔️📚👉 Get Notes Here: https://www.pabbly.com/out/magnet-bra... ✔️📚👉 Get All Subjects playlists:- https://www.pabbly.com/out/all-videos... ✔️📚👉 Student Feedback Form: https://forms.pabbly.com/form/share/e... =============================================== 📢 Full Playlist Link: • Class 9 Physics (New Session 2023-24) | Co... ✅ In this video, ✔️ Class: 9 ✔️ Subject: Physics ✔️ Chapter: Sound ✔️ Topic Name: Propagation of Sound =============================================== 00:00 Introduction: Propagation of Sound 01:03 Propagation Of Sound Waves 26:31 Website Overview =============================================== 📢 🔥 Available (Kindergarten to 12th) all Video Subject wise Playlist https://www.pabbly.com/out/all-videos... Why study from Magnet Brains? Magnet Brains is an online education platform that helps give You NCERT/CBSE curriculum based free full courses from Kindergarten to Class 12th so that you can perform well in any and all exams you give in your academic career. 👉 Contact us 🤑🤑 ➡️ Connect with us : [email protected] ➡️ Website : https://www.magnetbrains.com ➡️ Subscribe to us on YouTube: / @magnetbrainseducation ➡️ Subscribe to Magnet Brains Hindi Medium : / @magnetbrainshindimedium ➡️ Facebook : / magnet-brains-education-110955641184512 ➡️ Instagram : / magnetbrains ➡️ Telegram : https://t.me/magnetbrainsbhopal Points covered in this video:- Propagation of Sound Waves Sound is a energy. The moment sound comes out from the mouth, this energy is transferred to the first set of particles. Sound energy - kinetic energy. Particles start moving in the same direction with greater velocity. These one set of particles collides with second set of particles. Second set of particles collides with third set and so on. Your sound travels by transferring energy to different sets of our particles. Thus, finally reading to the eardrums. This causes vibrating of eardrums that’s how the other person can listen the sound. During transferring energy between air particles, some amount of energy loss takes place. Person standing near to the speaker gets more sound energy. Therefore, gets the sound with more clearly. While person standing away from the speaker gets less sound energy and hence sound clearity decreases. Sound is propagating through vibrations. Air particles perform to and fro motion. While propagation of sound two regions are formed between particles of medium. Compression - High density, high pressure Rare fraction - Low density, low pressure Medium for sound propagation Air Solid Liquid . Disclaimer: "This video is for educational and informational purposes only and is not intended to infringe on any copyrights. If you believe that this video has used any copyrighted material in a way that constitutes copyright infringement, please contact us at [email protected] and we will take appropriate action."