Why planets move faster when closer to sun? explained in HINDI
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- เผยแพร่เมื่อ 14 ต.ค. 2024
- In this Science (Physics) video in Hindi for Class 9 we explained why planets move faster when closer to sun. This is a topic from Chapter 10 - 'Gravitation' for class 9th.
Planets move in elliptical path around the sun. As the path is elliptical, there is a point where the planet is farthest from the sun which is called 'aphelion'. And there is a point where the planet is closest to the sun which is called 'perihelion'. According to Kepler's second law of planetary motion the line joining the planet and the Sun sweep equal areas in equal intervals of time. It concludes, when the planet crosses the aphelion, it moves slowest and when crosses the perihelion, it moves fastest.
The reason behind this, is the difference in potential energy, which has been explained in this 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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🔴 Universal Law of Gravitation
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🔴 Free Fall || Calculating 'g'
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🔴 Motion Under Gravity (Part 2)
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🔴 Mass and Weight
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🔴 Weight of an object on the moon
• Weight on Moon || for ...
🔴 Kepler's Laws of Planetary Motion
• Kepler's Laws of Plane...
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🔴 Pressure in Fluids
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🔴 Pressure in Fluids (Part 2) - Pascal's law, Torricelli's law
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Ab tak nahi huye
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Thank you very much, Ayan, for your continuous support and encouragement.
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why we don t feel this acceleration
I also
What a way to explain...if only we had this kinds of videos during our school days...I only wish we had... School could have been fun...
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I feel proud to find a physics teacher like you. Love you sir ji 😘😙😙😘😘💓😘 💓💓💓💓💓💓
Sir I'm a student of class 9th and I have a question!!
Agr energy or mass neither created or nor destroy hai....toh at the first time ye kaha se aaye honge?? Please upload a video or this topic!!
Sir I can explain it more simply.
We know that F inversely proportional to Square of distance..which means the highest applied force will be at perihelion..we also know that F is directly proportional to Acceleration..that means the highest acceleration of the earth also will be at perihelion..
Thats why the earth revolve fastest at perihelion and slowest at aphelion ..
I am right..😉
Good brother
But it may have many reasons
1. Conversion of energy ( potential to kinetic)
2. F is inversely proportional to 1/r^2
🙂
Good but sir is more experienced and knows about the topic much much better tHan u
Bhai yaha to aake kitabi gyan hag diya jab practicle karke with example dikhane ko bolenge toh kya karoge
Sir ek chiz samajh nii aayi ki Kepler's 2nd law ye bataya hai ki equal internals mein equal distance cover krega than ye to galat hai kyuki jab planet sun ke pass hoga to jaldi chalega and 45(example) days mein jayada DISTANCE cover krega aur yhi aapne bataya hai aisa kyu ?? Plzz tell
Equal distance nhi equal area cover Karega 😊
Sir, the way you teach physics is awesome, keep on making such wonderful video's, it really helps a lot to grasp the concept. Why are planetary orbits elliptical?
Literally.... Bcoz of ur video's.. I'm bcm gd in Science 🙏🏻
Sir potential energy is directly proposal to the distance ????
Rolling Track and marble example rolling track is in inclined position and put the marble in the track there an external force gravity is applied. that is why you are using the track inclined position. but in the sun and earth there is no external force and no inclined position, space is empty. in space we can't consider no up and down.
Wow sir app bohot ache se padhate hoon ite ache se samajh aa gaya😀😀
Great sir,Thank you
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brilliant teaching... bohot dil se padhate hai aap... thanx
Sir would you please tell me from where did you get knowledge.I want to know about it.plzz sir. When u begin class 10 channel
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Sab ko apke jaise teacher mile....
Maine itne sare videos dekhi hu... Per apka teaching technique unique hai...
Mai to sare subject apse padh lu... School time itna achhe se nahi padh paye kyoki kuch samaj nahi ata tha....
Par abhi padugi....
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God bless u sir.....
Dil se apko dua...🥰
Sir you r best
Beauty lies in the eyes of the beholder.
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I knew this.. But I didn't know what I did not know.
Respect Sir. May God bless you.. I want to become as intelligent as you are.
Very helpful..... Thank you sir
Thank you sir l am understood any concept
🅠 Why did we considered a rolling track over there?
You made that track as 1 end is much higher than the 2 ed end. There is no gravity like earth so the ball will not fall fast toward the 2ed end and speed will not be slow towards 1st end.
Maybe distance from the sun affects the speed.
By the Newton's law,
F is inversely proportional to the square of distance. So, as distance increases, force decreases.
Maybe due to this reason earth moves fast while crossing the perihelion and moves slow while crossing aphehelion.
Am I right? Please guide me.
Thank you very much sir
You solved a big problem of mine.
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Hi sir I ve a query regarding the elliptical path where earth revolves around the sun , is this path a slope form I mean one focai is above from the other focai ?
Sir hats off ! very well explained ! Thank you so so much
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So so so helpful..!
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Sir according to the second law of planetary motion equal distance travel in equal interval of time but Aphelion take much time than perihelion?🤔
Thanks sir ...its really an wonderful explanation.
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0:15 sir konse motion mei??
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Beauty lies in the eyes of the beholder.
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Your Explanation is outstanding
Sir constant velocity and uniform velocity ka difference
Kya jabarjust information diye sir
To good
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God of science!!!!
Beauty lies in the eyes of the beholder.
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Yes, indeed.
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Sir i have a question
Why do planets have elliptical path ?
Sir ye keplar ka 2nd law angular momentum ko kese follow krta h?
wow sir.thanks for making such videos
Best physics teacher
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But sir gravity is inversely proportional to time,toh sir appheliah par gravity kam to time Jada hoga aur perihelian par gravity Jada hai to time kam hoga,,,,magar yaha toh ulta hai?? Sir pls reply Karke mujhe samja degiye.
Very smoothly explanation
Sir thank q
Aap bhut acha pdhate h mgr ek doubt tha ki WO tire me potential energy to uske height upr hone ki wjh se aaya.
To planet upr thori hota h WO to brabar me hota to kaise p.e energy aaya sir
SIR , FORCE OF ATTRACTION IS ALSO A REASON FOR SLOW AND FAST REVOLUTIONS
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Sir, thank u for this video.🙏🙏🙏🙏🙏
You are welcome.
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Thank you sir 😊😊
Please make video on difference between weight and mass and how force is related to mass and weight
Video is vailable.
I think, it is better to search videos by typing in the search bar of TH-cam.
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Nice info 👍
Sir thank you, nice video.
Sir I would request you to make a video on ex. 17 of this chapter only
I have understood this topic very clearly
Toh sir jb vo marble jb uper ki taraf jyega tb uski kinetic energy km ho jyegi esliye uske speed km ho jyegi?
Yes.
So educational thanks sir
Sir your video is amazing.
Excellent explanation.
Which force increase the velocity in perihelion???
Gravitational force.
Nice lecture 👍👍
Superb teaching sir
Sir video of thermal expansion of liquid
Sir u have all of our respect! Thank you sir
Soooperb knowledge sir
Is orbit of planets also tilted like your example??🤔🤔 Sir.
Tilted orbit????
Yes🤔🤔
Tilted with respect to what??
Sun??
How can one say tilted with respect to sun???
You cannot tilt anything with respect to a spherical body.
Great Explanation keep it up
Thanks sir
God of physics sir
Sir may u clear one thing Planets revolve in horizontal plane or vertical plane ? the explanation u gave in this video tells it should be vertical plane !
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Yes
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Sir, Nice Explanation
Very nice Sir.
What is gravitational acceleration
Sir thanks very much
Great thanks you sir
Thanks teacher
Great explanation
I think this is happening due to maintain cetrifugal force value otherwise it may falls into centre sun
Apki example main ring ko inclind karne se potential or kinetic energy main vary kia but earth or Sun ki path inclind main nehi hai usme kese potential or kinetic vary kiya or kese speed change hua
Are orbit bhi inclined hi toh hai
Sir jab earth sun ka sabse pas hoga tho earth sa to sun bada dikhna chahia ??
Sir in that ring one part was higher and one was lower , so it was understandable that potential energy would be high in higher part. But there is no height in elliptical part as it is flat , then why potential energy high at aphelion ?
Yes I have the same question is it lower at some place and higher at some place
Mmm nice video👌👌👌
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Very nice topic ☺️
Sir aap bata sakte ha kea why the distance is not taken from the centre plz sir
Very good lecture
Nice 👍
Sir ye universe kaisa hai horizontal or perpendicular ????🙏🙏🙏🙏🙏🙏🙏
I do not know the true nature of this universe.
I am searching.......
🙏🙏🙏🙏🙏