Sound in One Shot | CBSE Class 9 | Chapter 11 | Science

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[@Neptune_HD]

00:22 Introduction to the topic of sound and its components 03:15 Sound is a crucial topic with numericals and practical applications. 07:47 Sound is explained through particle vibration 10:13 Understanding the concept of waves and sound propagation 15:17 Mechanical waves require a medium for propagation. 17:57 Sound requires a medium to travel 22:24 Transverse waves involve particles moving perpendicular to the motion of the wave. 24:35 Sound is a type of energy creating sensation. 28:48 Compression region has higher pressure and density 30:53 Analysis of pressure and density relation in wave propagation 35:25 Sound is energy that creates sensation in the ears and can travel as a mechanical wave. 37:33 Characteristic of sound and amplitude explained. 42:15 Loudness is the measure of response of the ear to sound 44:36 Loudness is not the same as intensity. 49:47 Frequency is the number of vibrations per second 52:18 Frequency and time periods are key concepts in wave analysis. 57:03 Understanding the concept of shrillness and pitch in sound. 59:27 Frequency, amplitude, wavelength, and pitch are key factors in determining the characteristics of sound waves. 1:04:18 Understanding the concept of wave frequency and characteristics. 1:06:31 Frequency, period, amplitude, and velocity in sound science 1:11:36 Difference between lightning and thunder 1:13:38 Sound reflects and follows laws similar to light reflection 1:18:18 Understanding sound resonance and how the brain processes different sounds 1:20:37 Understanding the concept of sound reflection and echo 1:25:45 Multiple reflections of sound in practical applications 1:27:59 Understanding the Principle of Reflection of Sound 1:32:15 The importance of acoustic design in theaters 1:34:17 Dogs can hear ultrasonic sounds beyond human range. 1:38:51 Sound needs a medium to propagate 1:40:54 Sound reflection, speed, and characteristics explained Crafted by Merlin AI.00:22 Introduction to the topic of sound and its components 03:15 Sound is a crucial topic with numericals and practical applications. 07:47 Sound is explained through particle vibration 10:13 Understanding the concept of waves and sound propagation 15:17 Mechanical waves require a medium for propagation. 17:57 Sound requires a medium to travel 22:24 Transverse waves involve particles moving perpendicular to the motion of the wave. 24:35 Sound is a type of energy creating sensation. 28:48 Compression region has higher pressure and density 30:53 Analysis of pressure and density relation in wave propagation 35:25 Sound is energy that creates sensation in the ears and can travel as a mechanical wave. 37:33 Characteristic of sound and amplitude explained. 42:15 Loudness is the measure of response of the ear to sound 44:36 Loudness is not the same as intensity. 49:47 Frequency is the number of vibrations per second 52:18 Frequency and time periods are key concepts in wave analysis. 57:03 Understanding the concept of shrillness and pitch in sound. 59:27 Frequency, amplitude, wavelength, and pitch are key factors in determining the characteristics of sound waves. 1:04:18 Understanding the concept of wave frequency and characteristics. 1:06:31 Frequency, period, amplitude, and velocity in sound science 1:11:36 Difference between lightning and thunder 1:13:38 Sound reflects and follows laws similar to light reflection 1:18:18 Understanding sound resonance and how the brain processes different sounds 1:20:37 Understanding the concept of sound reflection and echo 1:25:45 Multiple reflections of sound in practical applications 1:27:59 Understanding the Principle of Reflection of Sound 1:32:15 The importance of acoustic design in theaters 1:34:17 Dogs can hear ultrasonic sounds beyond human range. 1:38:51 Sound needs a medium to propagate 1:40:54 Sound reflection, speed, and characteristics explained

[@SantoshkumarPrajapati-oj3cw]

Vote for very important questions in final exam

[@kanikabisht784]

Of all chapters?...

[@Mohit_saini_551]

Yes of all chapters social science and science

[@Mohammadihuriya]

Yes

[@shwetapatil2309]

😂

[@NaveedMinhas-kt1ep]

Difference between loudness and intensity Loudnes 1 subjective in nature 2 not complete physical quantity 3 depends upon sensitivity of ear 4 unit of measurement dB Intensity 1 objective in nature 2 physical quantity 3 does not depend upon sensitivity of ear 4 W/m^2

[@rohitwalikar277]

Thank you sir understood all concepts now it's crystal clear 😊. Please share the PDF 🙏

[@aaradhyKatiyar2312]

App se note le lo

[@abhilashapareek5121]

7:45

[@gayatrinahak777]

Thanks

[@sauravshaw9140]

You are really a good teacher and can you kindly make a video on vernier calliper and screw gauge Icse 9

[@rajuchoudhary1199]

Sir if particles don't move with wave then how is rare fraction and compression being created? Please reply someone

[@PrekshaMohindra]

Particles dont move with the wave but move forward and backward which is basically vibrating...so the particles vibrate and when they move forward (while vibrating) compression is created and then they come back to mean position so rarefaction is created; only the disturbance moves forward (In the new ncert book page 128 propagation of sound)

[@jannatanwar-xo7ip]

Thank you very much Sir.Very easy concept 🎉🎉🎉

[@itzams19gaming]

14:39 sir domino’s nahi Doridos😂😂😂

[@ROBOTICR.G]

sir on 1:23:59 you say that the difference between alex and wall is 17.3 then why in picture u wrote the distance from wall to alex 34.6 m tell me please why

[@ROBOTICR.G]

yes sir why

[@KrishnaTiwari-bp5zw]

Sir what is the difference between echo and reverberation.

[@susmakumari4236]

Sir aapne mosquito ke sound achi nikali by the the way your explanation is too good🎉🎉🎉🎉🎉🎉

[@Avengers6177]

Sir we want to know about haunted laboratory from you please 😢 Thankyou for this session ❤❤❤❤❤❤

[@RajeevKumar-gr4nz]

Thank you sir for this session 😇😇 Understood all the concepts and Notes were being made during class:) Please bring numerical sessions.

[@anjalibabu560]

46:28

[@Bint_e_islam-s]

Best channel ever today I watched 4 sessions ❤❤

[@DishaJagtap-vq5ge]

Thank you, Sir.

[@akul4990]

How to get ppt of this chapter

[@amrithasridhar836]

Telegram

[@amanbmanoj6333]

1:12:50

[@sukhdeepkaur1623]

Plzz bring important questions of all chapters of phy

[@NandanirawatRawat-wd3cv]

Sir par Jo rope hai jab vo aage jaega to peeche bhi to aaega

[@aaradhyKatiyar2312]

In rare case it happen

[@r.srinivasyadhav8125]

Thank you sir it was very interesting and i understood the concepts very easily

[@BabliJain-ue1or]

Sir I have question can you explain me what types of sound?

[@AbdulHakeemAbdulHakeem-tx2dy]

Yes sir very easy sound 😊

[@shashilaxmiyadav7832]

12:54 sir aap aur hmm UP vale h thela hi accha h hamare liye ....😅😅😅

[@archnapandey5485]

Thank you sir for this wonderful session!😃😇

[@rajeshchaurangpate3535]

Good evening sir I undistand but I don't known how learn formula

[@bhargav-mh3mx]

yes

[@sayedmdtarique3984]

Sir Paad ka bhi amplitude, frequency, pitch, wavelength, hota hai kya?

[@Daksh-rs4ou]

sir you didn't cover rarefraction?

[@AsutoshFoundation]

good teaching

[@yashodast8226]

Thanks so much Sir ❤🎉😊

[@luky1276]

Hamko bhi esae hi ek sir pha date hai

[@HimanshiSadhu9294]

Ok

[@adarshguhan8157]

Gr8 video ❤

[@sanjitadasbayan4503]

He roast elvish yadav 😂😂😂

[@ShineOnMotivation-1]

🐒

[@bipneshbaghel8714]

NEW student 8E sakshi

[@DipanshiTehlan-cw2sb]

sir i really felt very bad when you said the sentence "Elvish ke papa ka naam aa gaya dekho" you were my favorite physics mentor till but not now no more this is very shameful to disrespect someone with the reason nothing i don't like this behaviour😞😠😡 sorry if you felt bad but i gave my point of view🙏🙏

[@dikshitsanklecha5248]

😂😂😂😂😂😂😂

[@nandraj7987]

Sir what is crest and trough

[@DaddyJjii]

sir why are u struggling so much ?

[@RaviRanjan-j5m]

Sir aap padahatei kam ho or time waste jada karte ho ( in my opinion)

[@Adithyarohankumar.m]

We like to study like this only

[@kitten_wonder]

fr bro wasted like half of the hour yapping nonsense

[@MPrithvi-d5n]

​@@kitten_wonderMind your words

[@vansh-marvelandgaming]

Then study from some other source

[@kanikabisht784]

Sir notes pdf

[@dikshitsanklecha5248]

Sound is a energy

[@whatsappuniversity7702]

How sound got trapped in a mobile phone and we can listen it later