Force and Pressure Class 8 Science in One Shot (Chapter 11) | BYJU'S - Class 8
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- čas přidán 15. 08. 2022
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Have you ever wondered what makes an object slow down or go faster? Well, join this class to find the answer to this interesting question.
The movement of an object depends upon the force and pressure applied to it. In this Mission Mid-Terms series, Saurabh Sir will take you through all the important concepts from your Class 8 Science chapter 11, Force and Pressure.
Some of the topics covered in this class are Force, Types of Force, Pressure, Pressure exerted
by Liquids, and Atmospheric Pressure in one shot. By the end of this class, you will be
able to solve any type of question-related to these topics. Saurabh Sir will lead you through all the concepts in a very interesting way.
A push or a pull on an object is called a force. Forces applied to an object in the same direction count to one another. “If the two forces act in the opposite directions on an object, the net force acting on it is the difference between the two forces.” Learn more about this in this class.
For more engaging class 10 video lessons and revisions, subscribe to our BYJU’S - class 6, 7 & 8 channel.
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➡ Register for ANTHE 2023 here:
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When will be eaxm again
Please reply me sir🙏🙏
Hii
Thanks sir 😊😊😊
😂😂😂😂😂😂😊😅😮😢🎉😂❤
I found this video before one of my annual exam 😂😂😂
Same
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Brother start your channel 👍🎉🎉😊
Very bekar kaam
😊😊
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@@amitamallick4522😢
@@amitamallick4522😢
What an explanation 😊!! Most of the people watching this video are students who have physics exam the next day
No, I just want to learn concepts
No, I want to learn some new concepts
Yes
fr
The video script covers the topic of force and pressure in a one-shot session for Class 8 Science. It explains the concepts of force, pressure, types of forces, and atmospheric pressure. The script also encourages viewers to subscribe for more educational content and offers a gift for early subscribers.
Key moments
00:00
The video focuses on force and pressure, highlighting their significance in everyday life. It also promotes an upcoming exam, offering scholarship chances and cash rewards for participants.
06:10
Force is the interaction between objects, leading to changes in speed, direction, or shape. Contact force, like muscular force, requires physical touch for application.
12:10
Contact forces require physical touch between objects, while non-contact forces like gravitational, electrostatic, and magnetic forces act without direct contact. Net force is the sum of all forces acting on an object.
18:12
Forces in the same direction add up, while opposite forces subtract. Balanced forces have a net force of zero, unbalanced forces have a non-zero net force.
24:17
Pressure is influenced by force and area, affecting objects differently. Nails, knives, heels, elephants, and bubbles demonstrate how pressure varies based on surface area and force applied.
30:19
Pressure by liquids and gases changes with depth, affecting bubble size. Atmospheric pressure is the weight of air column over Earth's surface.
36:39
Atmospheric pressure decreases as altitude increases, impacting activities like drinking through a straw and using suction cups.
42:26
Viewers are urged to submit doubts for a doubt session through a form link. Subscribers can receive gifts and access a free session using a provided code.
42:26
Encouraging viewers to submit doubts for a doubt session by filling out a form link provided in the description.
43:02
Subscribers are offered gifts and access to a free session using a code provided in the description.
your welcome :)
nice
ty!!
😮
Nice 😮😮😮😮😮😮😮😮😮😮😮😮😮😅
Bechara itna mehenat kia hai or bas 20 likes😢😢
But sir How Do we know that material we are creating will be able to withstand the pressure of 4 to whatever number of elephants
Force and Pressure
Thrust
❖ The force that acts on a surface in a direction perpendicular to it, is known as thrust.
Pressure
❖ Thrust per unit area is called pressure. So, pressure = force/area on which it acts.
❖ Liquids exert pressure on the walls of the container in which they are kept.
❖ Gases exert pressure in all directions.
Electrostatic Force
❖ A force exerted by a charged body on another charged or uncharged body is known as electrostatic force.
❖ Atmospheric pressure is defined as the pressure exerted on a surface by the weight of air above that surface.
Atmospheric Pressure
❖ The pressure exerted by atmospheric air around us is known as atmospheric pressure.
Contact Force
❖ A force that can be applied only when it is in contact with an object is called a contact force. For example,
hammering a nail.
Electrostatic Force
❖ When a charged body, either having a (+) or (-) charge, exerts force on another charged or uncharged body, that
force is known as electrostatic force.
Force
❖ Simply a push or pull exerted by an object on another is a force.
Friction
❖ The force of friction always acts on all the moving objects and its direction is always opposite to the direction of
motion.
Gravitational Force
❖ The force exerted by the earth to pull the objects towards itself is called the force of gravity.
Gravity
❖ Every object in the universe, whether small or large, exerts a force on every other object. This force is called the
force of gravity or just gravity.
Magnetic Force
❖ The force exerted by a magnet to pull/push a metallic object is called magnetic force.
Muscular Force
❖ The force resulting due to the action of muscles is known as muscular force. For example, writing, cutting
vegetables.
Non-Contact Forces
❖ A force that can be applied without any contact between two objects is called non-contact force. For example,
the magnet pulls the iron-pieces.
Pressure
❖ The force acting on per unit area, applied to an object in the direction perpendicular to the surface is called
pressure.
Thanks , Very useful
@@ashaojha6267 welcome ☺️
Woah, useful :)
@@saumyaprasanth thanks
Thankyou soooooooooo much ☺️😊
Thank you very much sir, you helped me a lot and I got 49/50 marks in my exam❤🙂
Answer of the HW is option D
congrats
D is the right answer
As pressure at most depth Is the most and decreases when depth decreases
Hey Kesar, Great🤩 Keep watching!
अच्छा🦔
@@SomeDude_777 hambe = ha
@@byjus-class-678hi🎉
sir, I have a doubt if we suck out or manage to take all air particles of a small paper box like matchstick box, inflates, if we do the same thing with a big room whose walls are made up of bricks, then what will happen, will it inflate of the shape remains the same?
because the force the pressure is still applying on it from outside but not rom inside, and if it is so simple to destroy houses or buildings to use that land to build more of them, why don't we use this way instead of all jcb's and heavy heavy machines?
lol dumbo
jjk😊
@@luckeykumar-7798 jujutsu kaisen?
yess
Thank you sir for your teaching skills
Sir u r nextlevel op❤❤
Your teaching style is very differnt and so enjoyBle
It was very helpful sir😊😊. I liked how you explain
It was really good explanation.thank you sir.i always can't understand the force and friction.when i see this video all my doubts was clear.your are amazing sir🦋
u are dumb to not understand these easy things
SIR YOU ARE EXPLAINING VERY WELL WITH FUN SO WE ARE ALWAYS ABLE TO UNDERSTAND CONCEPTS. THANK YOU SO MUCH BYJUS...❤
Yes you are right❤
Loved the explanation
Sir really thank you it helped me a lot im good in physics but my expressing part is a little bad and you gave that with a real ease thank you
Pressure exerted by Liquids
1. Walls
2. Pressure
3. Increases
Ok
Very good explanation sir all my consepts are clear
Thank u sir for explaining it so much nicely from my point of view u r very friendly
I am glad i found this vedio just 2 weeks before my final exams 🤩🤩🤩
One day before my final exam
Legends found it one day before the exam 😂
@@MuhammadFarhan-mv6gv nice
Video.
Same
Thank you byjus for these type of videos. When I’m absent I’m unable to understand the topics taught after that so I take help from these videos. Sir the bestest
thank you sir, this video cleared my all concepts
Was very helpful thanks a lot to you sir I am very happy that I chooses byjus
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bhajan is video ke bich me kaha se aagaya??
❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤ ❤❤❤❤❤❤❤❤😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊
bro praying for his exam because he spent the night watching reels
@@armagedonnatty lol😂
Yo why the pooja so sudden, I forgot to wear traditional clothes and comb my hair😂
Thanks sir for this one shot series
Best teaching compared to all teacher
I had buy physic wallah course but he was worth of money
And I am also applied Anthe 2022
I am Atharv Srivastava
Class 8th
Hello Atharv, Thank you so much🤩
It's my pleasure sir
The answer Is d pa
Sir do the practical example of the electrostatic force, the hair rubbing thing.
Thank you sir for helping a lot .
Hey Vidhi, Most welcome😍 Glad it was helpful!
D is the answer. Great explanation. Today I Subscribed to your channel.
Hello Amit, Thanks for the sub!😍 Kindly also join our Telegram Channel for session PDFs, Session updates, Homework questions and a lot more!
Please find the Telegram link below to join,
t.me/byjusclasses678official 🔔
@@byjus-class-678 fucke
The answer is option D. Because, pressure increases with depth.
Your teaching is gorgeous and amazing
Wow !! what an explanation !!! Really loved it
Glad you enjoyed the session🤩 stay tuned for more such sessions!
I found this the day before my physics exam 😢
Its not before Its after
Nahh it's correct
This was good ! Please put out the link pf concept capsules!👏🏼
Thank you sir you are a brilliant teacher tomorrow is my exam and I was very tenced about this chapter because I have a lot of doubts . And I am a davian and I was not geeting any best vedio . I suddenly I thought to try with bijus actually dav is cbse .
And with this vedio I clear my all doubts Thank you ❤❤❤
This was a wonderful session it help a lot for me sir
sir it was really amazing way you taught since I didn't get any doubts 😊😊Thank You for oneshot session in which our all doubts were clarified .
Hey Nisha, Glad to hear that🤩 Hope you are enjoying all the sessions!! stay tuned for more!!
Okk
7:56
Sir your explanation is OSM and your way of teaching is easyyy peasyyy means really amazing 🤩😍 l love it💕💕💞💞
Sir can you please tell how can i join live classes
Thanks sir for teaching us free of cost 😀
What r the causes of force?
When any object intereact with another object.hence, force is caused.
B)Pa
D pa
Now I understand why cycles with thinner tyres are more faster than normal or thick tyres.....Thank you Sir!
1:5
What about cars??
Same....
Very good explanation sir... The concept was easy to learn
Hey Smitha, Thank you so so much😍 Keep learning!
🤣🤣🤣
thanks sir it just clear the concept
Sir you have a very very very good way of explaining students!! 12:01
that part was very funny 🤣
The answer is option D as the pressure increases by depth and pc and pb are at the same point in the depth, whereas pa is at the top, the pressure is comparatively less...btw amazing and helpful vids!!
Who asked ?
@@SomeDude_777 41:47 was asked here...
@@SomeDude_777Ure mom
Acha @rock to born u got me as ur father 🐸
@@SomeDude_777 saurav sir
What is acceleration?
These all chapter is coming in my half yearly thank you for teach
A very good class sir😊😊You explain in such a manner that everyone can understand the chapter very well🤩🤩
Thanks a ton Ajeet🤩 Glad you liked the session! Keep watching!!
You explain in a really friendly manner sir, this really helped me a lot even if i study in UAE
Hey, Glad it was helpful🤩 Keep watching!
Thanku sir this was helpful
Most welcome Ayushi, Glad it was helpful😍
Explanation is good by using examples with images sir
Legends r watching this in Finals 👍
Yess we are 😂😅
Yess we are 😂😅
Yes
Yes
yep and tommorrow is the exam🤣🤣🤣🤣
Thank you sir... You have made me understand better this topic....😄
Welcome beta 😂
Sir your style to teaching is very nice
The mixture of humor with the proper definition is OP. Thx
The way he is teaching is a class.❤
Very nice explanation sir....proud to be byjus student🤩
Hey Vibhuti, Glad to hear that and thanks for liking the session🤩 Keep watching🤩
Just wondering, how do they know ur name? And also is vibhuti your name?
The answer for the hw question is (b) = Pa
Wrong
Hi sir it was amazing video that I ever see😊😊😊😊
Wow , what a class I really enjoyed it
Hey Likitha, Glad you enjoyed the session🤩 keep watching!!
Thank you for making me understanding
Sir will joules come in my 8 class test?
TODAY I UNDERSTOOD THIS CHAPTER THANK U SIR👍
31:00 😂😂😂 Sir's reaction
3:48 video start
8:07 to 8:13 the scene of laughter
10:19 very funny
10:21 scene was epic
10:35 sir wasted tissue
10:45 shapee
12:01 very funny
14:31 sir forget he has no hair😝
16:45 very funny movement
16:58 again very funny
22:10 legends are understand
22:12 🤨
22:32 half english half hindi
22:38 thak thak
23:43
31:00 sir reaction
Bro are you even listening to class ??😂 (take it as a joke )
23:10 very funny
Bruh I was half sleeping💤 half khi khikhu😂
nobody asked
@@user-kv4gp4no6o joke ->
I didn't find a video or mentor like him in my byjus class
I don't know guys why you are proud of you. Like putting the comments as legend watch before exams😂😂😂
Sir a fabulous explanation and buju' s teaches all the subjects nicely and well explained thank you 😊😊
...
Bujus ?
It's byju's what is buju's 😅
😂
Hi
Thank you sir, tomorrow is my exam and you help me
option b
Tomorrow is my exam and today I found this video😅 and it really helped me a lott😁👍🏻
Thank you sir❤ I just found this video 17 days before my physics exam😊 Its so helpful and understanding , it helped me a lot😁
The answer for the questions is D. Pa
😊 I love byjus and sir you teach WOW!!!
31:39 - 1. Walls 2. Same/Constant 3. Increases
Thank you bro you helped me because tommoro my exam
Glad to hear that Shin Shan🤩 All the Best for your Exams🤩
@@byjus-class-678 thank you sir ,i wrote well
💀bro nahi uncle hoge tere
This guy has no respect
Wtf is bro........
I'm from 6th grade but because of Byjus 8th class physics is clear to me.
@yadav_ji807 jyada to padha hai mene mujhe koi problem nahi hui,😁😎 because I have done hardwork with Byjus.
(D )pa « pb = pc is the answer!
legends watching one day before exams
But you are not
@@sksuresh048 i am i have it in my unit 1 exam dude i got 30/30 in that
30/30
?¿
@@sksuresh048 yes dude i am a science topper i watched this video as a summary or u can say revision and i wrote it just for fun last year i got 98/100 in finals
Video starts at 4:27 i hope this will help you 🎉😊
Answer for Homework Question is "Option D"
Great Naitik😍
41:46 Answer is C. Pa>Pb=Pc
no it is d because atmospheric pressure will be more in more dept
Wow his teaching style is amazing
*Thank you byjus*
I found this video before 3 days of my exams
Thank you sir for that amazing explaination my all doubts are clear
Thank you very much sir.
Hii
Amazing explanation ......
Thankyou so much sir for this one shot session the way of teaching is fantastic
22:09 What is eese esse esse 😂😂
Legends understand
Before exam is OK but seeing video on the day u have exam is next level
😅
Bro you are in central academy ?
Great sir 😇😇
Difference between comets and Asteroid
Pressure exerted by liquids remains same at the same depth (2)
NASA wale bahut Khatarnak hai
Kon kon agree kar raha ha
😂😂😂😂😂😂😂😂😂
Pressure exerted by liquids.. 1. Wall of the container
At 43:55 SIR BE LIKE YYT FIRRSSTT 😂😂
I have an exam tommorow (semi finals) Science😂😂😂😂😅😅😅
Today is my science board exam
@@ashwiniragate8578good 🍀 luck for your board