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 :)
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.
00:06 Force and Pressure is a key topic covered comprehensively in one shot session. 02:19 Registration for NASA Venasa trip opportunity 06:38 Force is the interaction of objects. 09:05 Force can cause a body to change speed, direction, or shape. 13:34 Gravitational force and electrostatic force in Class 8 Science 15:27 Magnetic force is a non-contact force. 19:27 Forces in the same direction add up, while forces in opposing directions subtract from each other. 21:16 Force can be balanced or unbalanced 25:10 Pressure depends on force and area of contact 26:58 Pressure in solids and liquids explained 30:46 Pressure exerted by liquids decreases as bubbles rise 32:54 Pressure exerted by gases and its impact on balloons 36:46 Understanding pressure variations based on depth and altitude 38:38 Sucking the air reduces pressure inside the straw 42:33 How to get a gift as a subscriber and a free session offer 44:18 Encourage engagement and sharing of knowledge
It was really good explanation. Thank you sir. I always can't understand the force and friction . When I see this vedio all my doubts was clearly. You are amazing sir 😍
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🦋
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
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 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 🔔
@@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
Homework question Answer is option D because as the depth decreases preasure increases The Pb is equal to Pc because they are at the same depth so the right answer is Pa
Try to understand 😅 Who's are saying "watching before exam" the actual person who has their exam tomorrow thinks that they do not understand my pain because this is my exam not him and the person who has exam was worry a lot Can you relate with me😂
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?
No it won't inflate because a room made up of bricks have tiny pore from which air can pass 😅 (its my theory i cant give the currect ans because i am also a student)
The unit idea is only when the name of the unit is named after a scientist then first letter will be small and the symbol will be capital Eg ampere (A)
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 ❤❤❤
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!!
➡ Register for ANTHE 2023 here:
anthe.aakash.ac.in/anthe?
When will be eaxm again
Please reply me sir🙏🙏
Hii
Thanks sir 😊😊😊
😂😂😂😂😂😂😊😅😮😢🎉😂❤
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😢😢
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 ☺️😊
I found this video before one of my annual exam 😂😂😂
Same
Same bro
Brother start your channel 👍🎉🎉😊
Very bekar kaam
😊😊
00:06 Force and Pressure is a key topic covered comprehensively in one shot session.
02:19 Registration for NASA Venasa trip opportunity
06:38 Force is the interaction of objects.
09:05 Force can cause a body to change speed, direction, or shape.
13:34 Gravitational force and electrostatic force in Class 8 Science
15:27 Magnetic force is a non-contact force.
19:27 Forces in the same direction add up, while forces in opposing directions subtract from each other.
21:16 Force can be balanced or unbalanced
25:10 Pressure depends on force and area of contact
26:58 Pressure in solids and liquids explained
30:46 Pressure exerted by liquids decreases as bubbles rise
32:54 Pressure exerted by gases and its impact on balloons
36:46 Understanding pressure variations based on depth and altitude
38:38 Sucking the air reduces pressure inside the straw
42:33 How to get a gift as a subscriber and a free session offer
44:18 Encourage engagement and sharing of knowledge
Radhe krishna
Radhe krishna
Radhe radhe
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Krishna krishna
Hare hare
Hare ram hare ram
Ram ram hare hare
Hare krishan
Hare krishna
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Radhe ❤❤❤❤❤❤
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😂
D is the right answer
As pressure at most depth Is the most and decreases when depth decreases
Hey Kesar, Great🤩 Keep watching!
अच्छा🦔
@@byjus-class-678hi🎉
YessSSS
It was really good explanation. Thank you sir. I always can't understand the force and friction . When I see this vedio all my doubts was clearly. You are amazing sir 😍
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❤
Legends r watching this in Finals 👍
Edit: m famous tyyy
Yess we are 😂😅
Yess we are 😂😅
Yes
Yes
yep and tommorrow is the exam🤣🤣🤣🤣
Pressure exerted by Liquids
1. Walls
2. Pressure
3. Increases
Ok
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
We literally saw it in SST class just before the Physics exam period.
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
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
Video starts at 4:27 i hope this will help you 🎉😊
😊
The answer Is d pa
U are very excellent in teaching sir 😊
Homework question ❓
Ans D for sure 🎉
Byjus is fraud stole my 1 lack rupees and not responding 😢😢
Really
😢😢
Yes bro 😭🥺 me also
@@amitamallick4522😢
@@amitamallick4522😢
14:32 But sir aapke to baal hi nhi hai(MOYE MOYE)
Finally I found this video I have my exams tmrw. like if relatable
7:23 interaction ❤
Bhaiii
31:00 😂😂😂 Sir's reaction
very easy home work Q. ans is D 😊 41:43
22:09 What is eese esse esse 😂😂
Legends understand
😁😁😁😁
😅😆😅😆😁
😜🍌
6:19 କିଆ ଓଡ଼ିଆ ଭାଷା ଜାଣି ଚ like କର
It was very helpful sir😊😊. I liked how you explain
The answer of the last question is option D
7:18 what are you speaking😂😂😂😂
😂
😅😁😁
23:00 pressure start
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
26:11 sir's heel drawing inproved a lot😂😂
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
Sir your explanation is OSM and your way of teaching is easyyy peasyyy means really amazing 🤩😍 l love it💕💕💞💞
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
23:15 goes like balabalababaabalallababbab🤣🤣🤣
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
Sir I am new student in your class
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
Homework question
Answer is option D because as the depth decreases preasure increases
The Pb is equal to Pc because they are at the same depth so the right answer is Pa
14:31 but sir forget he has no hair😂
16:44 very funny moment
16:58 again very funny
22:12 🤨
22:32 half english half hindi
10:21 this also funny 😅
But sir have beared😂😂
@@drmanjulavijayanand4821frrrrrr
3:44 video starts
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
video starts from 3:48
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!!
Thank you sir for your teaching skills
Try to understand 😅
Who's are saying "watching before exam" the actual person who has their exam tomorrow thinks that they do not understand my pain because this is my exam not him and the person who has exam was worry a lot
Can you relate with me😂
Tere school ne nhi padhya tujhe
Sir you have a very very very good way of explaining students!! 12:01
that part was very funny 🤣
correct answer to the homework question is option d
31:39 - 1. Walls 2. Same/Constant 3. Increases
31:35 walls 31:44 constant 32:15 increases
Sir u r nextlevel op❤❤
Your teaching style is very differnt and so enjoyBle
option no D
WONDERFUL EXPLANATION
👍🤏
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
No it won't inflate because a room made up of bricks have tiny pore from which air can pass 😅 (its my theory i cant give the currect ans because i am also a student)
29:42 is awesome 😂😂😂😂
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....
The answer is option D. Because, pressure increases with depth.
Thank u sir for explaining it so much nicely from my point of view u r very friendly
Like this session s are helpful during exams
I found this the day before my physics exam 😢
Its not before Its after
Nahh it's correct
My exams are coming and first exam is science and I'm doing classes ❤❤
Yes my also😂
At 43:55 SIR BE LIKE YYT FIRRSSTT 😂😂
The unit idea is only when the name of the unit is named after a scientist then first letter will be small and the symbol will be capital
Eg ampere (A)
I have an exam tommorow (semi finals) Science😂😂😂😂😅😅😅
Today is my science board exam
@@ashwiniragate8578good 🍀 luck for your board
14:35 very funny
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 😅
😂
10:00 that hut 😂
Sir the answer of the homework question is D🎉
nice video i really like it . ! amasing magic man i rezpect u
ikr
Hi zubair 🤪👋
Loved the explanation
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 ❤❤❤
NASA wale bahut Khatarnak hai
Kon kon agree kar raha ha
😂😂😂😂😂😂😂😂😂
Thank you sir for this lecture
Very good explanation sir... The concept was easy to learn
Hey Smitha, Thank you so so much😍 Keep learning!
🤣🤣🤣
answer is Pa
What r the causes of force?
When any object intereact with another object.hence, force is caused.
The mixture of humor with the proper definition is OP. Thx
Thanks sir for teaching us free of cost 😀
What is different between fraction forces and gravitational forces?
The way he is teaching is a class.❤
10:22 was ecip 😅😅😂😂😂
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
1 . Walls
2. pressure
Wow his teaching style is amazing
*Thank you byjus*
The video is informative
I have challagne for all students wathing this veideo
Solve this question.
abc(a+b+c)×abc+abc=x?????????
Yah thats very difficult
If you solve this problem you are the best maths student.
There is no value given in the R.H.S if there is a value only we can solve it
You didn't give any algebraic function also
The value of all a,b,c and x is 0🤣😂😀
D part is the right answer
Wow , what a class I really enjoyed it
Hey Likitha, Glad you enjoyed the session🤩 keep watching!!
1=walls2=constant3=increas
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!
@byjus-class-678 hi sir
If u are watching plz put 12 commerce 11 chapter
12 class
Pressure and increase
Wow !! what an explanation !!! Really loved it
Glad you enjoyed the session🤩 stay tuned for more such sessions!
41:23😍
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?
Before exam is OK but seeing video on the day u have exam is next level
😅
Bro you are in central academy ?
For those who are new to this video, start watching it from 3:50, 😶
Tomorrow is my exam and today I found this video😅 and it really helped me a lott😁👍🏻
0:56 0:57 0:58 1:00 1:00 1:01
Thank you sir for helping a lot .
Hey Vidhi, Most welcome😍 Glad it was helpful!
Tare ko kya
@byjus-class-678 bol
thank you sir, this video cleared my all concepts