Star and Solar System in One Shot | Physics - Class 8th | Umang | Physics Wallah

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  • Опубликовано: 20 фев 2022
  • 📝 For complete notes of Lectures, visit Umang Batch in the Batch Section of PhysicsWallah App/Website.
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    ▶️Complete CLASS 8TH - SCIENCE ONE SHOT Lectures - • Science - Class 8th NCERT
    In this lecture of Umang batch, Alok sir is going to teach you about stars and the solar system.
    Topics covered in this lecture are-
    •The moon
    •The stars
    •Constellations
    •The solar system
    -Some other members of solar system
    There are many other important chapters that we are going to cover in upcoming videos for class 8. Stay tuned with PhysicsWallah Foundation.
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Комментарии • 2,1 тыс.

  • @GSaroj
    @GSaroj Год назад +26

    9:07 full moon- purnima
    New moon- amavasya

  • @Gamescorn
    @Gamescorn Год назад +73

    21:24
    Distance from Alpha centauri:- 4.376 light years
    Distance from Proxima centauri:-
    4.246 light years
    Hence proxima centauri is nearest if the information is help full please like 😀

    • @All_0228
      @All_0228 8 месяцев назад +1

      Correct 💯 information ℹ️

    • @ishucubing1553
      @ishucubing1553 6 месяцев назад +1

      -_-
      Sun is the nearest not proxima centauri

    • @neerajrai5464
      @neerajrai5464 5 месяцев назад

      Proxima centauri is the 2nd nearest star from earth

    • @prashanttripathi6636
      @prashanttripathi6636 5 месяцев назад

      ​​@@ishucubing1553 yep that's right but he has said that the second nearest star is proxima centauri at 25:05

    • @mushtaq7731
      @mushtaq7731 4 месяца назад

      First nearest star is sun and second nearest star is proxima centauri😮
      Mujhe ab Pata chala

  • @aayushirajputff4332
    @aayushirajputff4332 5 месяцев назад +30

    Who watching this video before exam
    Vote now
    👇

  • @itzkashifganai9955
    @itzkashifganai9955 6 месяцев назад +32

    Kon 2024 mai ya video dakh raha hai😂

  • @gaurav_-_579
    @gaurav_-_579 Год назад +22

    FULL MOON-PURNIMA
    NEW MOON-AMAVASYA

  • @minefact01
    @minefact01 2 года назад +10

    20:28 second nearest star to proxima century hai

    • @HarshKumar-bt3dd
      @HarshKumar-bt3dd Год назад +1

      The Alpha century is known as the proxima century

  • @snowleopards6345
    @snowleopards6345 Год назад +69

    One thing... *Notice*...even though sir is seriously teaching but it seems like sir is sweetly smiling 😀

  • @MohdNaseem-cv5yb
    @MohdNaseem-cv5yb Год назад +37

    Sir you always make us happy 😊 while the study 📖 thank u sir

  • @baishakhisahoo05
    @baishakhisahoo05 2 года назад +344

    Sir your lecture is toooo simple to understand........if we will watch only this video without reading a book......then also we can score upto 85% easily ❤️

  • @tinkalmangal4657
    @tinkalmangal4657 Год назад +41

    Full moon is purnima and no moon or new moon is amavasya 👍🏻👍🏻
    Thank you for your efforts for teaching us in a very nice way 😌😍

  • @sheulisarkar6556
    @sheulisarkar6556 Год назад +23

    You are amazing sir... Your teaching style is ausome... Thanks for this video 🙏

  • @sandhyadevi6579
    @sandhyadevi6579 5 месяцев назад +14

    8th class Boards aa gye
    Best of luck to all of you
    Do your best
    Pure sal ki ki hui mehnat dikha do 🙂

  • @pallavipallav8881
    @pallavipallav8881 Год назад +9

    Sir
    There is one more planet which can sustain life according to the scientists.i.e (KEPLER1649C).
    🙏🙏

    • @user-se8pt5zu4n
      @user-se8pt5zu4n Год назад

      Sir class 9 m aagye hai please sir science ka 1 ch phadado class 9 kaa please sir

    • @sseducationalindia9
      @sseducationalindia9 6 месяцев назад

      😊​@@user-se8pt5zu4n

  • @PWIANS2345
    @PWIANS2345 Год назад +10

    Wow sir I like you

  • @rozydevi5052
    @rozydevi5052 Год назад +5

    Full moon is known as Purnima and New moon is known as aamayasha

  • @aatiyabatool3109
    @aatiyabatool3109 8 месяцев назад +2

    Q1_full moon :purnima
    new moon :amavasya
    Q2_constellation
    Q3_sirius
    Q4_2061
    is all the right 👍🏽 answers please comment down if it is 😊

  • @sunitadevi-iz3ne
    @sunitadevi-iz3ne Год назад +5

    FULL MOON -POORNIMA , NEW MOON-AMAVASYA

  • @anuragchaubeyindia
    @anuragchaubeyindia Год назад +12

    Full moon is known as Purnima.
    New moon is Known as Amavasya.

  • @lofi_elevated28
    @lofi_elevated28 Год назад +22

    Thank you sir for giving amazing explanation ☺️☺️

  • @KiranPatel_07
    @KiranPatel_07 Год назад +3

    Full moon in Hindi -Purnima
    And New Moon - Amavasya

  • @NikitaSingh-cw3sr
    @NikitaSingh-cw3sr 2 года назад +8

    Thank you sir 🥰

  • @suryaanshkesarwani9102
    @suryaanshkesarwani9102 Год назад +24

    9:03 full moon is called 'poornima' and new moon is call 'amavasya'

  • @umeshsohan4911
    @umeshsohan4911 Год назад +9

    Thank you so much sir 🔥👏👏🙌

  • @sandhyadevi6579
    @sandhyadevi6579 8 месяцев назад +313

    Kon kon yhan village se
    hai
    👇

  • @pujaroshan1128
    @pujaroshan1128 2 года назад +5

    13:17, Is it 20th of july rather than 21st of july?

  • @rajuchoudhary5423
    @rajuchoudhary5423 2 года назад +5

    Thank you sir 🤗

  • @Education7794
    @Education7794 2 месяца назад +2

    New Moon- अमावस्या/अमावस (Amavasya/Amavas)
    Full Moon- पूर्णिमा (Purnima)

  • @renguntwartm6368
    @renguntwartm6368 29 дней назад +2

    sir space main air nahi hota toh sun burn kyn ho raha hai

  • @ajaymaurya1393
    @ajaymaurya1393 Год назад +4

    Thank you guru ji 🙏🙏

  • @sakshidevi1332
    @sakshidevi1332 2 года назад +4

    Sir thank you so much 🙂😊😀

  • @writbanparua7261
    @writbanparua7261 11 месяцев назад +2

    Full moon - Purnima
    New Moon - Amavasya

  • @SatyendraYadav-hu7xg
    @SatyendraYadav-hu7xg 6 месяцев назад +2

    sir koi bhi sir se hame samajh nahi aata but sir you are amazing

  • @sanjugahlot6820
    @sanjugahlot6820 Год назад +11

    Q 1. Full moon_purnima
    New moon_amavasya
    Q 2.constellation
    Q 3. Sirius
    Q 4. 2062

  • @motivepink9554
    @motivepink9554 Год назад +6

    1.Sattelite..

  • @criketkings6808
    @criketkings6808 Год назад +2

    Sound can travel through solid also and moon surface is solid.but why we not hear any sound.

  • @alfiza2601
    @alfiza2601 Год назад +2

    Sir your are clear all concepts easily 😊😊😊❤❤❤😇😇🥰🥰

  • @safa487
    @safa487 Год назад +40

    Great lecture .❤️ Your style of explaining is wallah😊 I got 95 marks in science exam . Thanks a lot of you❣️

  • @salonitiwari2337
    @salonitiwari2337 Год назад +3

    Full moon is also called purnima
    New moon are known as aamawasaya

  • @wearevloggers7537
    @wearevloggers7537 5 месяцев назад +2

    Sir I have a question..,... That jo apne the stars wale topic m sun and proxima century ka distance bataya h kya vo accurate h if yes to ise measure kaise Kia gya ??? Thank you!

    • @prince21edits
      @prince21edits 5 месяцев назад

      By comparing the intrinsic brightness to the star's apparent brightness, we can get a good measure of the star's distance by applying the 1/r^2 rule. The 1/r^2 rule states that the apparent brightness of a light source is proportional to the square of its distance 😊

  • @user-cs5tm5gg5p
    @user-cs5tm5gg5p 8 месяцев назад +1

    Sir it's my first class from pw and Now I know you are the best teacher in pw.

  • @ruqsarfirdous1295
    @ruqsarfirdous1295 Год назад +15

    Thanks sooooo much for this beautiful explanation❤🥰

  • @SeemaSingh-mn7ek
    @SeemaSingh-mn7ek Год назад +3

    Thank you so much sir 😊

  • @Aarushisingh070
    @Aarushisingh070 7 месяцев назад

    Sir thank you so so so much..I really appreciate that aapki smile nhi hat Rahi thi aapne bht effort ke saath bht acha padhaya...once again thanks

  • @GameQuestor
    @GameQuestor Год назад +1

    I think you are give amazing explanation sir😊

  • @ajaysinghmaravi1959
    @ajaysinghmaravi1959 2 года назад +3

    2 rupee ki pepsi, alok sir sec..c ❤️🔥

  • @aryanshinde-student19777
    @aryanshinde-student19777 2 года назад +14

    Full moon- Poornima (in hindi).
    New moon- amavasya.

  • @RaiMayank804
    @RaiMayank804 Год назад +2

    Sir second nereast star Jab proxon century h to aap kyu alpha century ko bol raha h 20:37

  • @user-ei6tf8rf5f
    @user-ei6tf8rf5f 6 месяцев назад +1

    Thankyou sir for giving me this awesome explanation

  • @freefactonart6810
    @freefactonart6810 2 года назад +39

    Q1 = ANS =Full moon =purnima
    New moon =Amavasya
    Q2 = ANS =constellation
    Q3 = ANS =Sirius

  • @SaraKhan-bc3qp
    @SaraKhan-bc3qp 2 года назад +6

    Sir ma bhot sara online platform par gaye like byju's but consept aap ka jasa kowi clear nahi karta hai love you PW ❤️❤️

  • @zubairahmad4016
    @zubairahmad4016 8 месяцев назад +1

    Sir your voice is sweet , you are sweet your teaching skills is also good

  • @dimplerani2618
    @dimplerani2618 9 месяцев назад +8

    Sir the approximate value of one light year os 94608000000000000m and the time taken to reach the light on earth from alpha centuries is 1.5 days or 135604.8sec this research took me only 10 minutes to do🎉🎉🎉

  • @_srm_02
    @_srm_02 Год назад +6

    Thank you for your video sir...🤗It helped me a lot in my class seminar...🙏🙏And your teaching is also awesome...☺️I was thinking that how to do this big lesson..But when i saw your video i felt like,ohh only this much sooo easy..😅Thank you once again sir...❤️

  • @yash.tripathi626
    @yash.tripathi626 2 года назад +10

    I am in class 9th but I come to see how the sir teaches. Sir is on😊😊😊😊

  • @OmkarSingh-hy9kk
    @OmkarSingh-hy9kk Год назад +2

    What a nice explanation

  • @simranassad395
    @simranassad395 Год назад

    Sir so amazing ❤👏 may allaha bless u you are God teacher for students

  • @PayalKumari-ek2qj
    @PayalKumari-ek2qj Год назад +32

    1. Full moon - Purnima
    New moon - Amawasya
    2. Sirius
    3. 2062

  • @amanpandey5289
    @amanpandey5289 2 года назад +3

    Thanks for teaching sir

  • @Urr_FutureWife
    @Urr_FutureWife Год назад +10

    Tomorrow is my exam and this is helping so much, ty sir 🌼

  • @bhavyabhardwaj5023
    @bhavyabhardwaj5023 Год назад +1

    It is not necessary for other being to live with oxygen only then can live with other gases too. In this universe we are not the only one who are living. Who agree please like and comment.

  • @MrVeershort-xr4td
    @MrVeershort-xr4td 2 года назад +3

    Nice sir 👍😍👍☺️

  • @mr__mayank6710
    @mr__mayank6710 Год назад +1

    Sir kya mast explain Kia hai chapter 👍

  • @criketkings6808
    @criketkings6808 Год назад +2

    Why daily different part of moon reflect sunlight.

  • @king_keshav_videos_05
    @king_keshav_videos_05 4 месяца назад +4

    8:42

  • @fab.abuzar
    @fab.abuzar 2 года назад +16

    Cassiopeia is looking like Pikachu's tail ⚡

  • @BhupeshGupta-oi2sw
    @BhupeshGupta-oi2sw 2 месяца назад +2

    I think sir has compete this chapter in fabulous ✨

  • @knowledgeofevent9087
    @knowledgeofevent9087 Год назад +2

    You are one of the best teacher

  • @avocadish10
    @avocadish10 2 года назад +40

    Book mein itna advanced diya hota hai ki dekh kar hi dimaag ghum jaaat for bout 13 to 14 pages par yahan aake chapter ko padhne mein itna zyada maza aaya hats off physics wallah

    • @Funnyvideo-ds7mz
      @Funnyvideo-ds7mz Год назад

      Kon sa book hai tumara

    • @avocadish10
      @avocadish10 Год назад

      @@Funnyvideo-ds7mz ncert nahi hai thoda advanced level that's why

    • @brainless5486
      @brainless5486 Год назад

      ​@@avocadish10May i know your book's publication? By whom it is written?
      I'd be glad to know which book that is.
      Thank you

    • @LaveshGurjar-un8eu
      @LaveshGurjar-un8eu 5 месяцев назад

      Bo mtg foundation ki book hogi jo kids mere pass hai

  • @passive_soul
    @passive_soul Год назад +17

    Nice lecture sir really liked it but is there a batch in Physics Wallah where be could be taught in more detailed way??

  • @bindupandey6647
    @bindupandey6647 8 месяцев назад +1

    Mujhe to sabse ursa major lagta hai aapko kaun sa constellations pasand hai ❤❤❤❤😊😊😊

  • @ranamanoj7984
    @ranamanoj7984 Год назад +1

    Thank You sir your best simple lacture

  • @gulsaba6266
    @gulsaba6266 Год назад +4

    Constellation is right answer

  • @sakshiyg1122
    @sakshiyg1122 Год назад +5

    Who is covering every lessons by putting video onto 2x speed 🤭like me😜

  • @abhijeetkumar9633
    @abhijeetkumar9633 4 месяца назад +1

    In every condition there is a sweet smile in you face sir 🙂

  • @MaheshYadav-cn4qd
    @MaheshYadav-cn4qd 10 месяцев назад +1

    Sir howw much time star or moon to reach the light??

  • @memerking8727
    @memerking8727 Год назад +8

    Thanks of lots sir 👍♥️♥️

  • @falgunijikeremedies_9
    @falgunijikeremedies_9 2 года назад +17

    Full moon 🌕 is known as Purnima
    New moon 🌝 is known as Amavasya

  • @LegendGamer-zj2xe
    @LegendGamer-zj2xe Год назад +1

    Sir but stars moves as they are revolating around the center of galaxy

  • @umeshkumaratomy8305
    @umeshkumaratomy8305 Год назад +1

    Sir aap bahut acha padha the hai 😊☺️☺️

  • @RekhaDevi-vr1kq
    @RekhaDevi-vr1kq Год назад +4

    Sir I am very happy to see your videos and my all concepts is cleared

  • @pujamishra4823
    @pujamishra4823 9 месяцев назад +3

    Best teacher ❤

  • @rajeshkumar-yt6ru
    @rajeshkumar-yt6ru 8 месяцев назад +1

    Sir, full moon are known as purnima and new moon are known as amavasya.

  • @nisharani1111
    @nisharani1111 4 месяца назад +1

    Best video sir ✌️😇😜✨
    Sir mzza aa gya

  • @kailashdt
    @kailashdt Год назад +5

    Q1. Full moon: Purnima
    New moon: Amavasya
    Q2. Constellation
    Q3. Sirius
    Q4. 2062

  • @ayushpithoriya7652
    @ayushpithoriya7652 Год назад +25

    Full moon is called पूर्णिमा and New moon is known as अमावस्या

  • @SantoshSingh-kr5di
    @SantoshSingh-kr5di 6 месяцев назад +1

    Thanks sir for your wonderful solution❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤

  • @cutiepiekhushi8340
    @cutiepiekhushi8340 Год назад +1

    My favourite teacher ❤

  • @1minecraft-Player_fanpage.
    @1minecraft-Player_fanpage. Год назад +7

    great lecture and lecturer..

  • @darkblackfox450
    @darkblackfox450 2 года назад +12

    Thanks a lot sir .... you teaching is too simple and smile suits on your face

  • @abdulmalikansari2636
    @abdulmalikansari2636 7 месяцев назад +1

    New moon is known as Amavasya and full moon is known as purnima😊

  • @ZXR_GAMING_
    @ZXR_GAMING_ 6 месяцев назад

    I have a theory that time travel is possible because sir explain us that we sees the light first because of speed I know this 29:21 t is not possible for now but if we achieve the of light then it is possible to time travel the end

  • @000iconicgamerz
    @000iconicgamerz 6 месяцев назад +3

    Kon kon ye video 2024 me dekh raha hai?
    Jo dekh raha hai wo like kare 👇👇🙏❤❤❤❤❤❤❤❤❤❤

  • @seemskumari5274
    @seemskumari5274 2 года назад +16

    Full moon is called purnima
    And new moon is called amavasya..

  • @user-vx4ho6ts7s
    @user-vx4ho6ts7s 5 месяцев назад

    Mashallah sir Kya explanation hae❤.

  • @Alfaaz.9006
    @Alfaaz.9006 6 месяцев назад +2

    Full moon = Purnima
    New moon = Amavasya .

  • @aimiit4066
    @aimiit4066 2 года назад +3

    I'm thinking that what will be the surprise , By the way give your compliment 😜😜😜😜☺️☺️☺️☺️☺️☺️☺️☺️☺️☺️

    • @shashwat1354
      @shashwat1354 2 года назад +1

      I think a pocket batch for 8th class in the app for rs - 11 or 12 or Question Marathon

  • @Jigglemaster28
    @Jigglemaster28 4 месяца назад +3

    10:24

  • @sunitareddy5543
    @sunitareddy5543 Год назад

    If the pole star is on earth axis so then why its not the closest star to the earth can anyone explain

  • @FarukGamingYt123
    @FarukGamingYt123 5 месяцев назад

    Thank you sir for giving the universe for us

  • @deepadubey1814
    @deepadubey1814 Год назад +6

    Great lecture and lecturer 😊💯💫🤗