Force and Pressure | Full Chapter Revision under 30 mins | Class 8 Science
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- čas přidán 2. 02. 2024
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Ans is Camels can walk easily in the desert because of their wide feet. Their wide feet allow the weight of their body to act on a larger surface of land reducing the pressure exerted on the land by the camel. As we know, pressure exerted and area are inversely proportional.
hi byjus, please bring sst for class 8 also like this
in the first question:
It is more difficult for the horse to walk in the sand because its feet are not broad as that of a camel. Which means less surface area, and pressure exerted on the sand is more hence the feet of the horse going inside the sand.
Q-2) B 12.5:1
Hint to those who are solving: An elephant has 4 feet not 1.
THANKYOU SIR FOR BRINGING THIS SESSION FOR US!..
THIS CHAPTER IS COMING IN MY ANNUAL EXAMINATION ALSO!.... 😊😊
XXX you are
@@amarnathtiwari2538 xxx what is this
Hello sir thank you for this chapter and homework answer is :-
1. camels have broad feet than horse though which they can run easily while horses have solid feet so they sink easily in desert.
2. The ratio is 12.5 : 1
If there is any mistake please tell me sir 😅
yes ans of second question is 6.25 : 1
VERY NICE SESSION I LIKE THESE TYPE OF SESSIONS MY EXAMS R FROM 28 FEB TO 11 MAR I ALSO WANT EXEMPLER QUESTION SIR THANK U SOOOO MUCH.....!
IT IS EASIER FOR A CAMEL TO MOVE ON SAND THAN HORSE BECAUSE CAMEL HAS BROAD FEET HENCE LARGE AREA SO PRESSURE EXERTED WILL BE LESS
11:24
Answer: the camels 🐫has large foot then horse 🐎 so they can walk on sand because the ptessure will be distributed on the sand but in the case of horse they have shor foot so they can stuck in the sand
Hi 2nd comment
Byjus you are just wonderful you help a lot of young learners on this platform 🤠 hats of to you ❤🔥🔥
ans sir the camelhas large hooves which reduce the pressure but horse has small hooves which increse the pressure acted upon and the horse will sink down because the are is inversely propotional
12:39 homework question answer (a) since the formula of pressure is f/a
then the pressure exerted by the girl = 50/1 (applied force of 50 and area of 1) which is 50 pascals
then pressure exerted by elephant = 2000/250 which is 200/25 which is 8 pascals
ratio = 50:8 which can be represented as 50/8 which is 25/4 which can be written as 6.25:1
Thankyou sir for today's session
3rd comment...and excited for this class...❤
Hii princess
What you're solving for The ratio of pressure exerted by the girl to that by the elephant.
What's given in the problem
The girl weighs 50 N
The girl wears pencil heels sandals each of area 1cm square
The elephant weighs 2000N
The elephant stands on foot each of area 250cm square
How to solve
Calculate the pressure exerted by the girl and the elephant, then divide the pressure exerted by the girl by the pressure exerted by the elephant.
Step 1
Calculate the pressure exerted by the girl.
Pressure =force upon area
Pressure = 50 N upon 1cm square
Pressure = 50N/cm square
Step 2
Calculate the pressure exerted by the elephant.
Pressure = Force upon Area
Pressure = 2000N upon 250cm square
Pressure = 8N/cm square
Step 3
Divide the pressure exerted by the girl by the pressure exerted by the elephant.
50N/cm square upon 8N/cm square = 6.25
Solution The ratio of pressure exerted by the girl to that by the elephant is 6.25.
this is completely wrong. Read the question properly. The girl is wearing pencil heel sandals EACH of 1cm^2 area. So the total area will be 2cm^2. Hence pressure exerted by the girl will be 25 N/cm^2. The elephant stands on feet EACH of 250 cm^2. So the total area will be 1000cm^2 (because the elephant has 4 feet). Hence pressure exerted by the elephant will be 2 N/cm^2.
ratio will be 25:2, or 12.5:1
Bro both are wrong firstly we have to convert cm² into m²
@@user-ku4dv2nj4b that’s not needed.
Ya
Q1( b) 12.5 : 1 , Q2/ Ans The horse is unable to walk on the desert because it's feets have small area that exerts more pressure,but a camel walks easily on desert because it's feets are
broad that increases area because of this pressure is low that is why camel walks easily in desert and not gets inside the sand .
Why
Thank you sir 😊
Nice explanation sir
It is difficult for a horse to walk in the desert than a camel because the area of the camal's feet is bigger than horse so pressure will be less in camals feet than horse and his feet will not sink in the sand and camal can walk comfortably on sand
10:35 who is ravi sir?😂
Because horse legs are so short but camel legs are so much longer than horse and in deserts attract the people in the soil
1:47 💀💀
Horse faces problem in walking on sand because it's hooves are not wide . In case of camel it vice versa.
Camels hooves have more area than the hooves of horses. So the pressure acts on the horse's hooves more than the camel's hooves, resulting in the sinking of the horse, making it difficult to walk
In the topic of muscular force on 4:26 sir showing his body💪🏻 😂😂
Camel is walk on the sand easily because the first reason I can say that they were say that there were camel those have habits to walk on the sand and the horse have habit on the land and the second and important reason that the camel have wide legs compare to the horse. 😊
28 March se kis kis ke tension start ho Rahi h RBSC Wale best of luck
My tension❤❤❤
Thanks sir
sir i canbot find the notes through the link
Sosc form fill Kiya tha kya
homework answer : 6.25: 1
Sir can you please make video for class 9th 🙏
1st comment ❤❤
625:1 answer option AAAAAA
Bcz the camels have large and flat feet so the area is larger and force is smaller so it does not sink in the sand
I still watching this video more than 2 time
Keep it up bro 😂😂
@@RouhanKhan-rf7cp thanks
11:14 we use horses
Please sir can you tell me about what the business coach is going on now
6:52 😂😂
Ans is camel is having bigger feet than a horse which means the area of contact is more because the area of contact is more the pressure will be less. Horse's feet are smaller than that of a camel which means that area is less so pressure will be more thus the feet of the horse will go inside the sand
Sir the horse 🐎 legs area is having less area which goes inside the sand and presure is high and the camels🐫 have big foot which have less pressure
Sir pressure and area are invesly proportional
question 2 ratio is d option
Thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you very much sir 🙏 way was I understand very well sir 😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃
👍🏼👍🏻👍👌 tanku
Ans = 6.25:2
Sir you should speak hindi for more good explanation for some student❤
One like for our SIR
👇
I liked my own comment 😂😂
Please sir class -8 complete science syllabus revision
Thurst force ka example apple falling on ground
19:40
🎉
Nice sir
Thrust and force one and the same .Yes or no
Ans for the question is 6.25:1 (a)
Shi hai bhai
HW Q
Ans. Is option A = 6.25 : 1
Hello sir❤❤
Q1(b)6.25:1
Wrong
B is the answer of homework question
Hi sir
Thanks sir the video was really helpful 😊
15:27 honey will not flow it is too thick
3:50 sir if the bottle is made up of steel when 😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂🎉😂🎉🎉😅😂😅😂😅😂😅😅😅😅😅
A) 6.25:1
Wrong
second Q ans:25:1
12.5
Camel has long padded feet so the area is higher and pressure is lower
Video starts at 1:19
Can I write force
Answer is a option 6.25
Sir I miss the link please send the link I cut the link
Please. Talk. Loudly sir
because camel foot area is more so pressure will be less whereas horse foot area is short thus pressure will be more and ques 2 answer will be b 12.5:1
Please talk slowly sirrr 👍👍👍
6.25:1
yo!
A 6.25 : 1
Where is link
Homework question answer
Option a 6.25:1
Solution -
Pressure = trust
------------
Area
Case 1
Girl- trust = 50N
Area = 1cm2
Case - 2
Elephant - trust 2000N
Area - 250cm2
= 8
.
. . 50
-------
8
= 6.25:1 ans
kal hi science ka paper hai mera to
Same
Hlo sir
The feet of the horse are small which causes more pressure while the horse is loaded whereas the camel leg has more surface are causes less pressure.
Only legend seen this video before one day exam
Op
Aap kase ho sir?
Bohot bhadiya
Hello
Kuch samaj nahi aya kal paper hai
Mujhe bhi
If less advertisement then it will be less tha 10 mins
camel carry more weight than horse and needed less water
19:16 for some student use hindi sir because this past is important
sir ne electrostatic ka example mann se nahi force se kiya kyunki vo kar ni paate
D🎉
Because camels are longer feet then horse
Ss ki bhi aisi rapid revision class kro of every chapter plzz byjus team 😢😢😢😢
What's your name sir
some people use horses
B ans
HI
1000 comment
Sir pls zyaada english use mat kiya karo pls
Sir side plz