Experimental demonstration to prove sound requires a material medium for its propagation.

Experimental demonstration to prove sound requires a material medium for its propagation.
Video courtesy: Md Muzammil Quadri - IX

[@peeyupatel984]

Studing with practicals makes children's minds clear the concept. And you are doing the great job sir, keep it up😃

[@THARUNDHARSAN]

Awesome.. I wish I had a. Physics teacher like him THOSE STUDENTS BLESSED TO HAVE TEACHER LIKE YOU SIR

[@SurenderSingh-xd9kl]

Excellent demonstration sir. Even I teach students. I used your video to my students also sir. Thanks allot for the inspiration sir

[@sudharaniindukuri8871]

You r such a good teacher The way u talk is so good

[@adibaaiman38]

YOU ARE ONE OF THE BEST TEACHER I HAVE EVER SEEN! LOVE FROM BANGLADESH!

[@roobindebbarma2957]

Awesome.. I wish I had a. Physics teacher like him

[@okbrother2938]

Lol EDM producers basic knowledge of Sound Wanakha 🤣

[@somethingspecial5177]

Exactly

[@niharikapriya9500]

The way he taught was so sweet and he explained very well.

[@bhavyaghatikarbhavya7920]

EXCELLENT EXPLANATION AS WELL AS THE DEMONSTRATION SIR

[@JohnJenkins-b7e]

What a great teacher. Everyone involved. Very engaging.

[@WatchHubLK]

Great teacher.......😍😍😍😍😍congralations..😍😍

[@mdimdadulhussain4751]

Awesome sir....i am too much inspired from your experiments

[@davidhilton7780]

Wish more teachers were this way...

[@yashamumtahina]

Amazing Explanation sir and its very much clear when we see them practically.

[@draja9170]

Thanks a lot sir for this nice experimental explanation.

[@priyachandrakar5250]

We need teacher like you sir You are too good sir

[@mlachu5505]

I was not understanding this topic when I saw this practical my doubt was cleared thanks you so much for giving us clarity

[@sharmajikebalak3902]

Wow sir this helps me in my studies 👍🏻😘

[@jaskiratsingh9855]

Thank you very much sir for this great explanation. In my school there is also a sir like you ,his way of explaining is too good but your way is excellent sir.I just want to thank God for giving us such amazing and superb teachers.

[@moushmichauhan9670]

Excellent sir , What a practical... I was confused before b8 after watching ur video I understand very well. TYSM

[@pardeepkr.dochaniya1206]

Nice Explanation Sir (😄😄)

[@successadda4190]

Fabulous keep it up sir you are a true teacher sir

[@prissilavanancia9966]

Super sir your demonstration was excellent sir

[@benjamingo111]

You are a fantastic teacher

[@friendscommunity5644]

Thank you sir for making this video for all and for explaining 😃

[@k.shekar6845]

Nice explanation sir jiii👍🙏🙏🙏

[@haryigit]

Ağızına sağlık hocam. Ne güzel anlattınız. Hello from Turkey.

[@swatimane8386]

Excellent demonstration Sir

[@queenhuda1968]

Nice 👍🏻👍🏻

[@puravfashion7339]

Keep it up sir. We want knowledge

[@zeenatkhan5750]

Nyc. Its amazing. My doubt is clear...

[@chandanadeshapriya9438]

Brilliant 👍 Thanks lot sir

[@shaurya.ahasueruswaghe12]

My Physics lab wasn't this fancy in KV bhandup sheesh, great demostration and explanation sir.

[@tulasipappala7785]

Excellent sir.

[@ABiNAVab-e1g]

My physics sir told it about very carefully,, and i understand clearly

[@bhabashankarpradhan9031]

It will help us to understand that sound need medium to travel

[@musheerakhtar4359]

superrrŕrrrrrrrr👍👍👍👍👍👍👍👍👍👍

[@nilimasalunkhe1997]

Conclusion : Sound needs a material medium for propagation

[@viratgupta5057]

It's awesome video

[@crashsitetube]

I could hear when he turned on the bell. And continued to hear it ring all through the demonstration. I don't know what they were hearing there but, it sounded like the bell was ringing the whole time. I wonder where I could get one of those cool shirts.

[@SumanSingh-uv3xu]

Bruh it's the vacuum pump

[@crashsitetube]

@@SumanSingh-uv3xu Well, "Bruh", when the teacher turns the bell on and off, I can hear the bell turn on and off. When he turns the vacuum pump on and off, I can't hear any difference in the sound from that action (not sure why the vacuum pump is so quiet). But, even though the teacher and students say they can't hear the bell, I can still hear it in the video. I'm not sure what you are hearing.

[@SumanSingh-uv3xu]

@@crashsitetube I know u r getting confused duh just pause the video when he starts the vacuum pump. It'll clearly show u that the horrendous sound belonged to the vacuum pump and none to our bell jar. Although they sounded the same but try to put ur headphones on and then see the difference from which side the sound is coming although if u can't make out the difference then just imagine that the frequency of the bell jar was much less that that of the vacuum pump.

[@crashsitetube]

@@SumanSingh-uv3xu - I need to start relating this to, salaphysics. For a few reasons. This video is an excellent example of teaching/learning by rote. It's a poor way to teach any science when no thinking is encouraged or even allowed by the teacher. Those students were expected to say exactly what the teacher said and in the same way and all other responses were "yes sir" and "no sir". Very regimented. It's obvious that the teacher learned his sciece exactly as he's teaching it. By rote. By memorization. And, of course, the teacher has it wrong. Like every other "real scientist", he's thinking of sound as sound waves. Unfortunately, there's no way to convince someone who wants to believe something that what they believe is false. But, to pass those falsehoods on to the next generation is...criminal. Sound does travel through a vacuum. Because a vacuum is not the absence of matter. It may be the absence of atomic matter. Without getting too deep‌ into the nuts-n-bolts of it (in this venue), sound does propagate through a vacuum but, at the speed of light (as has been proven with the LIGO project). But, unlike sound through atomic matter (such as air prticles...or water...or metals, etc.), which we can easily hear, since our physiology has evolved to do that, our physiology does not respond to sounds arriving at light speed with sufficient effect for us to directly perceive it. But, getting back to the video. I notice some things that might explain why the bell can be heard after the air has been pumped out. Note how the bell is suspended in the bell jar. It appears to be hanging from a solid rod. That could transmit the sound to the jar even if the bell is in a vacuum. As the teacher lifts the jar, the sound of the bell changes from the way it sounds when on the pedestal. You have to be very observant but, as the teacher picks up the jar, he almost instantly lifts it. But, as he sets it down, there's a slight delay before he releases it with his hands. Listen for the change in sound at that exact time. That tells me two things. The first is that his hands dampen the sound of the bell radiated from the jar itself and second, that it's very likely that the students are saying that they don't hear the sound when they know the teacher doesn't want to be saying that they don't hear the sound. I think they are perfecly willing to sacrifice scientific integrity for the sake of social expectations. I can't hear the power supply switch when the bell is turned on but, when it's turned off I can clearly hear it click. With the vacuum pump, I can hear the click when it is switched on but, not when it was turned off. With science you (plural "you") need to take every aspect you are able to observe into account. To do less makes you at best a fake and a pseudo-scientist. BTW: When you do "kiddie-speak", it may make you look "rad" (do the kids still say that?) but, using the "king's English" (or other language) makes you appear more professional. I recommend that to anyone who wants to be taken seriously...Bruh. salaphysics.com 012421

[@SumanSingh-uv3xu]

@@crashsitetube I agree Bruv but it maybe the children's, teachers problem or urs and let's agree to that sound can travel in vacuum and doesn't reach us ultimately. Right cuz we aren't in vacuum. And we get in it we aren't capable of hearing that cuz we would already be dead. And the definition given by our books is absolutely correct.

[@naveensingh6686]

teachers must learn from this example.

[@draja9170]

Sir we r in need of many videos in all topics of physics from you.

[@TerrenciaVlogs]

what are some safety precautions when conducting this experiment?

[@sheelakumarika3198]

Excellent sir even i am a kvn student in

[@musheerakhtar4359]

it is very important experiment

[@Plancksqt]

Thank u sir, tomorrow I have my phy test of this chapter sound in my school, and this video really helped me a lot, actually 2 more chapters are coming but thanks a lot 😊😊😊

[@apurvakumar4996]

Study is very interesting only if it is taught in the right way

[@shoyebatamboli9669]

Amazing👌👌👌

[@bhumiiraghavv]

Super mr teacher

[@emmanuelakpaja]

I have a science project due Wednesday exactly on this

[@Jatinujjwal444]

Sir ye konsa school hai hme bhe aana hai ya

[@nishasharma8000]

I wish sir would got posting in our school.

[@imonion16april]

I wish I had such teacher 🥺

[@nilimasalunkhe1997]

Excellent success

[@VeeruGamerIsCool]

Cool

[@singhashok6362]

Nice demonstration

[@harshbohra5288]

Pls post a video about mediums of light

[@jayesh2012]

Superb sir,but i have a doubt is air only the medium for sound...

[@aryamantripathi9925]

Superb experiments

[@roomankotnal6469]

Proud to be KVIAN

[@drawingwithme3107]

Osm

[@jpgupta1759]

Thanks sir

[@NarainKolhi-v8k]

❤❤❤❤❤❤

[@mohammadrashidansari3750]

Where can i buy ..physics kits plz

[@bhaskargoyal9752]

I AM ALSO A STUDENT OF KV

[@varalakshmi-tm8ss]

Very nice sir

[@rabiyaparveen8517]

The same practical dued in my school

[@yashitasharma8732]

😅😅😂😂😂🤣😀😃😁😆😅 ohh bassa

[@muslimamuslima544]

excellent sir

[@sameenabanu8527]

Nice sir

[@factifyfaizy7285]

Thanks Sir G

[@ratheesachin8428]

Gajab

[@s.saravanas.saravana9785]

super sir

[@jenniferzevia317]

what did he say the name of that jar is?

[@ramana1969ramana]

Bell jar

[@meherbabagod3732]

❤❤💘💘💖💖

[@amresheternalphysics]

Which school sir

[@oscartoppo8864]

Nice

[@Honeyeditor564]

nice

[@zestyupdates4496]

sie from which k.v u r

[@geniousboys8351]

thank you sir

[@funkykenan]

Sure this guy created energy 3:25

[@farrukhzeeshan7415]

❤️❤️❤️❤️💚👍

[@titilayosojioni9231]

Itzy all in us Skz everywhere all around the world

[@radkitt3n379]

this video makes me realise for how lacking our physics classes have been. indeed a wonderful demonstration sir ❤️ probably physics would have been more fun if every classes had such interface experiments with the students. please post more such videos for class 9 🙏 lastly, thank you sir ❤️

[@nilaykumar1339]

kv op

[@vandanaabhade8885]

That motor must be kept at a distance

[@rahulkumar-gx8df]

इनसे जो बच्चा कतराया उसका भगवान मल्लिक है

[@educationstartup]

Energy is not created or not be destroyed

[@davidhilton7780]

In motion, energy was and is always in phase to cycle and shift polarization at vector points, cycloidal and linear ... Making that was an act of intelligence,

[@LOGAN-et1cx]

We dont even get magnetic needle experiment

[@asghadge06]

Yeah 😂

[@firedragongaming691]

Y konsi branch h kv ki m bhi kv m hoon

[@CarineWafo]

So this was real

[@selvigopalakrishnan6503]

Only motors sound is heared in video

[@UIET_gamer]

Energy can't be created or distroyed

[@azad8842]

Hindi ati toh hai

[@Levi-tm1rc]

Be honest tommorw is your exam.... Me too

[@malaxorakzi1507]

R.i.p English😂😂uff u Indianz

[@devanshipandey1434]

The 'z' at the end of Indian shows your deadass English better:)

[@AllinOne-im9iz]

Bakar

[@mastergangadhar]

VERY nice sir

[@200308164]

Nice

[@muslimamuslima544]

excellent sir