Introduction to Gravitation || in Hindi for Class 9
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- Опубликовано: 5 сен 2024
- In this Science (Physics) video in Hindi for Class 9 we explained the basic fundamentals of gravitation. This is a topic from Chapter 10 - 'Gravitation' for class 9th from NCERT.
For thousands of years we were amused why objects fall downwards. Isaac Newton came up with a concept known as force of gravity.
Gravitational force or force of gravity is the force created between two objects due to their mass. It is the force responsible for the earth to revolve around the sun, the moon to revolve around the earth.
To quantify this force of gravity we need to know the universal law of gravitation, which will be covered in the next video.
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🔴 Click here to watch the whole playlist on Chapter 10 : 'Gravitation' for Class 9 :
• Introduction to Gravit...
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I am sure that In future you have some 1.3M subscribers .
Thank you very much for your huge support and encouragement
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1......M
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Yes 🤩🤩🤩
Eaka Matlab tu baba hai
No not 1.3 M more than 1.3 M
Explanation is too gud 👍🏻 tomorrow is my xam... Nd so nervous 😓
Thanks sir...!
SIR MUJHE AUR KISI CHANNEL SE SAMAJH NHI AAYA AAPKE CHANNEL M MUJHE ACHE SE SAMAJH AA GAYA SACHME SIR AAAP BAHUT ACHE TEACHER HO KISI DIN AAPKE SUBSCRIBERS BILLIONS M HONGE AUR VIDEOS BANATE RAHO SIR AISE HI 😊
Thanks sir for wonderful explaination👍
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Omg! Waaaaa waaaaa bhut sundar explain love it
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😊😊😊
Thanks sir video ki बहुत जरूरी थी
Sir, cheaper 11 ke bhi video banaiye .
Please...👌👍
I'm in class 11 but still watching this, cuz I'm interested and want to really understand the concepts!! So i get to learn many things.. Thankyou Sir!
I am also
Gajab hai sir apka video sirf comments krne ka man krte h
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Thank you sir for choosing "gravitation " as the topic and your explanation really help me sir
Glad to hear that
@@edupoint.secondary stupidest explanation of gravity. There is nothing such has gravitational force in advance physics. There is no force only btw. It’s due to curvature of space time and time dialation which keeps in mind the Einestine general relativity theory. Pls educate students even of class 9 correctly.
@@asdfsgdfdJAOJFd shut up 😕😒
@@asdfsgdfdJAOJFd Lmao correct your grammar first
Osam sir bhut accha smjhyaya aapne thanks 😃
welcome friends
Hello sir. You are the best teacher of the physics. But sir give me a tip on dynomics.plzzzzzzzzzz plzzzzzzz sir.👌🏻
Sir plzzzz plzzzz dynamics😘😘😘😘😘😘
You are the best teacher of the physics
I m searching new videos on edupoint gir class 12th and 11th
Plz. Sir update that Chanel edupoint
I love edupoint chanel and edu motivation
good explanation sir thank you 🙏🙏🙏
Thank you sir you are best teacher.
Pahle mai aapka channel dekhti thi bahar se toh sochti phaaltu ka channel hoga lekin jab maine khol ke dekha to mai saare RUclips chhanel ko bhool gyi
Aap bhot aacha padhate ho sir
Hmare sir to sirf intext aur exercise Kara dete hai bsss
Thanking you so much.
You are the best teacher in youtube really. Sir I am giving you full marks 💯out of 💯. 🙏🏻🥰
Omg waaa...aime doubts clear 😱
Thank you sir your teaching methods is really interesting.....
thanku sir
I understood the whole lecture very clearly
Sir ek request h ki sir aap WHY PLANETS DON'T COLLIDE TO THE SUN sir please is topic par bhi ek video upload karo
Because planet revolves around sun at very high speed
If it's speed decrease and decrease then it will hit the sun
Oh god, what is Explained, very deep and very sweet voice and beautiful example so much doubt has never been cleared just by telling all the formula and questioning, I like to thanku for knowing that fun history.. ☺
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Sidhu baat = force that bind us to earth
Super se upper sir 💙💙💙💟💓💚❤💙💙💙💙
NICE WAY OF EXPLANATION USING ANIMATION
BETTER THAN BYJU'S & OTHER APPS
Sir bohot mast samaj mai aya..
Hello sir!! Sir I find your videos very helpful, u explain concepts in a very easy way that triggers our intuition! Sir, I have tried to devise a very simple proof of inertial and gravitational mass equivalence used in relativity... Plz tell sir is it correct or not ?
W= Gravitational mass
m= Inertial mass
g= acc. due to gravity
W=mg or W/m=g (for a "constant" acc. due to gravity)
Thus, W is directly proportional to mass.
Now, if we were to increase the mass for ex, then for constant acc. due to gravity g,
(x)W/(x)m=g [ "(x)" shows the increment (same) shown in both mass and weight, as they are directly proportional]
Since the increment is same, it cancels out , and we get W/m=g yet as again..
I have tried to give a statement for this "proof" : *an object of twice the weight will have twice the force of gravity ( and subsequently g ) pulling it down (obviously), but it will also have twice the mass. These two coefficients would cancel up and henceforth the "net" ratio would be the same as that of the original one, hence the acceleration would be the same in all the cases*
Sir plz it's a very humble request for u to devote just 5 min of your precious time and tell whether it's okay or not??? If something is wrong plz give the solution for that sir 🙏🙏🙏
Your math is correct, but I wouldn't consider that a proof
I would consider that circular reasoning, since it relies on the experimental fact already, that gravitational mass and inertial mass are indistinguishable. If you were to prove it, you'd have to start with the premise that they might not be equal to each other, and show through other principles that they'd have to equal each other..
Call inertial mass J. (I'm choosing J as the neighbor of I, because it's more distinct for this font). Call gravitational mass m.
The force of gravity (W) is given by W=m*g
Newton's second law, rewritten with J in place of m, would be F=J*a
Free fall acceleration (af), would therefore be:
af = m*g/J
Experimentally, we know that free fall is independent of mass, which means that J ultimately has to be proportional to m. To keep it simple, we say they are equal by convention, and "m/J" would simply equal 1, thus af = g. If they were "not equal" and we defined them to be equal out of ignorance, then the constant of proportionality between gravitational mass and inertial mass, would just get absorbed in the universal gravitational constant, when we go to measure it.
Yes...bahut acha samajh aaya
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Your way of teaching is mind blowing 💟
Very nice sir aap bhut achha samjhate h
Excellent explaination
Thanks for teaching 👌
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Congratulations🎉🎉🥳🥳👏👏 5.22 lakh subscribe.. 😇😇
Your video is very helpful and your teaching style is very amazing easy to understand
very brilliant explanation👏
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Beauty lies in the eyes of the beholder.
due to existence of gravitational force between the Earth and the Moon the moon should experience a pull towards the earth and vice versa do you expect the orbit of the moon to change due to this force of attraction? give reason in support of your answer. Please upload video on this question and Clear my concept .
Please
Yes sir please
Gravitational force hai, isiliye to ye orbit me rvolve kar raha hai. Varna straight line me move karta.
Thanks sir
Really great videos sir !!
Please keep making more videos with such practical insights
App bhut acha se samja te ho sir 🙏
Because of you I can understand it clearly thank you sir
Very nice video sir ji 👍👌👌👌👌👌
Your topic is very interesting
Priceless explanation
7:56 sir you said that moon didn't fall into the earth because it was already in motion. But why moon and all the planets of billions of galaxies are in motion. Why aren't they stationary?
Coz of inertia All the planet are in motion and there is no external force is applied to stop them so they continue their spinning
And the planets are in motion due to gravity
Thank you so muchh sir itna achha explain krne ke liye👌👌👌
Priyanshu
Tq sir you cleared my lots of confusion ...................😊
Hii
Im so impress with this explanation im looking forward to see more videos Like this about physics
wao simple an clear explanation
Sir koi bhe object ko earth arranct karte hai to hum Us object ko kaise uda late hai .....even earth ke pass jada energy rahte hai...
Sir please tell 🙏🏻🙏🏻
Thanks a million teacher
Thank you so much.
welcome shazad khan
Thank you so much 🙂 sir
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Sir can you provide us notes 🙏🙏🙏🙏
Super sir😄😄👍👍👍👍👍👍👍👍👍👍👍👍😘😘😘😘😘
So nice
@@edupoint.secondary 😈😈😈
Nice explaination 👌
Thnku sir🙏
👍👍👍
Types of energy pr video bnaiya
Chapter - "Work and Energy" is available now.
Thank you sir
Nice explanation
Sir my Question is that who give motion to moon or eart to Swim or Runing force from millions of year why not stop tha mothin of earh
Good sir 😊😊 best 👍 video 😁😁😁
Hii
He is so legend
Tnx sir
Centripetal force aur gravitational force me kya difference h sir
Sir yeh btaiyey jb dono hi masses ek duusrey pr attraction krtey hai... To dono aapas mey chipk kyu nhi jatey, chipkney k bjaye circular motion hota hai.. Kyu?.. Agar force of attraction hai to... Earth ko sun sey chipk jaana chahie tha aur moon ko earth sey.
Iss video me hi explanation available hai.
Thanks sir your are the best teacher in my history 😁❤👍
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Thank you sir for explaining the chapter
Sabse pahle Aryabhat ne research kiya tha gravity ke bare me magar hamara education videshi logo se ho raha hai
Sad 😢
Tribute to Aryabhat
Like if u agree with me
⬇️
Yes. We all know.
He along with thousands of sages in India were genius due to their attainment of dharana, then dhyana and then moksha.
They realized a lot of things modern science is discovering today.
But, do you know what was the formula he gave for gravity??
I do not think so. There is none, I think.
Realising a thing and formulate that with other physical quantities are two entirely different things.
You need to respect both....
When it is modern science, you need to respect those scientists like Newton, Einstein etc.
I do not say that modern science is the only way to understand the reality. There is a better and easier way - Ashtanga Yoga. But modern science is another path to attain the ultimate reality.
Learn what science means....
Sir please ek experiment ke THROUGH plane mirror image formation smjhaiye
Aap ek plane mirror le uske saamne object rkhe aur image concept smjhaiye
So, think you sir I really appreciate you to be continue....
Tq
Your this video helped me a lot sir
Thanks sir
informative video videos
nice explanation Thank you sir God bless you But mera ek question hai...force of attraction is directly proportional to mass and inversely proportional to the square of the distance between them...Uranus and Neptune are very far from Sun and their masses are also less.. whereas Jupitar has large mass and the distance between Jupiter and those planets (Uranus and Neptune) is very less Then why are they not revolving around the Jupiter ???
aur space me dher saare satellites hai aur bhi small bodies hai wo kyu idhar udhar ghum rahe hai wo inke taraf gol gol kyu nhii ghum rahe
@@ariegenarula7462 The sun's gravitational field is so much larger than Jupiter's gravitational field, once you are as far away as the other gas giant planets, that Jupiter doesn't dominate the gravity that Saturn, Uranus, and Neptune experience. Jupiter is more massive than all the other planets combined, but still not even 1% of the mass of the solar system.
You have great teaching techniques.❤
Story ke sath samjaea sir motion aur rest ki tarah
Very nice explanation 👍👍👍...
Sir maths ki video v bnayiye
Sir air bana hua hai atoms and molecules se to force of gravity usko hold kaise karke rakha ta hai ?????????
Atoms continue motion me hote hai and unki velocity hoti hai root mean square velocity agar planet escape velocity root mean squre velocity se kam ho to us planet me atmosphere or air hoti hai and agar root mean squre velocity us planet ke escape velocity se jyada ho to gases molecules or air partiles escape ho jate hai and us planet pe atmosphere nahi hota
Wow 😀
Very good explanation sir. Request to add english subtitles
Shall try
Best video sir..
Thanks for helping me..🙏
well explained
Nice
Sir how the earth revolve around the sun can you make a separate video for that, I have many of doubts
Is it actually gravitational character of earth ! or may be magnetic repellant power of the sun. Which is the reason all planets are positioned at their own rotational distances naturally, as per their metallic/ material characteristics ?
You are best sir 👍
Thanks for this vedio
very Great video sir
Excellent sir
Thank you very much for your support.
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Nice explaining💖💖💖
Sir moon ke pas kounsa motion h
Tum tosssi great ho😉😉
Good Morning Sir.
Your efforts and teaching skills are very much appreciable.
I have been greatly moved by you ang gaining lots of knowledge in science.
But I have doubt
"What is conservative force and how gravitation is called a conservative force?"
Sir please answer this question for me.
Op expiation sir op 👏👏
Sir plz prepare video work and energy
Sir please make video in SKF velocity which is the part of gravitation. And sir your explanation style is very fundamentally Tq so much sir
The term is Escape velocity. I can see how it would be mistaken for "SKF velocity", as "escape" sounds similar to the letters "SKF".
It refers to the energy needed to leave a world's gravitational field completely, and the corresponding initial speed you'd need to start with, when moving away from the world. You can leave in any direction as long as it isn't on a crash path. You can also have any mass, and it will be the same speed. It assumes that you start with this speed, and coast outward with no resistive forces.
Even if you accelerate continuously, you still need to plan energy for propulsion, as if you accelerated instantly to the escape speed.
Sir please make a video on black hole 🙂
Sir please teach maths quadrilaterals chapter class 9 bohot doubt aata hai usme
You are good study teacher iam understand
Sir aiesa kyu hai ki F=kma me k=1 lekin F=GMM/r^2 me G=6.673×10^-11😇😇😇