Friction | Full Chapter Revision under 30 mins | Class 8 Science

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[zainabnisa]

Legenda one day before exam😂😂🎉.Best of luck for Exam😂😂❤❤

[rrrishvikg]

Spikes will provide larger frictional force than the normal shoes. The spikes will help in preventing the sports players from slipping on the ground.

[rishitajain]

00:03 Frictional force opposes relative motion.
02:33 Causes of friction and factors affecting it
05:31 Understanding static and sliding friction
08:18 Explanation of why sliding friction is less than static friction
10:54 Friction is both a foe and a friend.
13:15 Roughness increases friction
15:32 Reducing friction in different ways
17:46 Fluid friction, also known as drag force, depends on speed, nature of the medium, and shape of the object.
19:38 Streamline shapes reduce friction for objects like airplanes and rockets.
Crafted by Merlin AI.

[Arbi_nahi_Urvee]

14:08 the sound effects 🤌🤌 😂😂 but honestly you explain very well ❤❤

[onlystudy]

A1=They use spikes because it gives them better grip and it increases Friction.
A2=It is hard to walk on soapy floor because it has less friction and smooth surface.
Thanks Sir

[aniketjagaty]

Who are watching this one day before half yearly exam😂

[Vineshow]

A1=Sports men use shoes with spikes to increase the friction between shoes and the surface. The shoes with spikes do not slip while they run or play.

A2=The layer of soap makes floor smooth due to which the friction is reduced and the foot cannot make a proper grip on the flore. Therefore, it is difficult to walk on a soapy floor and we start to sleep on the floor.
😊

[PraveenKumar-pbnk]

The force of friction pushes it in the forward direction and allows us to walk. The force of friction between the ground and feet decreases when there is soapy water spilled on the floor. Hence, it becomes difficult to walk on the soapy floor.

[jyotisavajiyani]

Me studying 3 months before exam 😅 I think I am only one 😢

[darkworld]

Rule no.1: Write legends are studying one day before exam
Rule no.2 : like my comment

[Snapshot]

Sir,
When the soapy water is poured on marble stairs it Will decrease the frictional force as a result we will not be able to walk on the stairs infact we are gonna fall in fact of walking

[Denittapouseph]

I like the way he teaches😊....
Congrats byjus for getting such an amazing

[AnushkaKatkar-wu]

Yes, it is difficulty to walk on soapy water because of following reasons

* There having lower friction
* Both surface area are sooth

[avayasahoo]

The spikes will help in preventing the sports players from slipping on the ground. Hence sportsmen use shoes with spikes. Spikes increase the surface of the shoes & make it rough which results in an increase in friction. This helps to have more grip on the floor and chances to slip reduces.

[rekhadahiya]

3. It is more difficult to walk on a soapy floor because on that kind of floor irregularities and interlocking would be decreased that's why friction is decreased and friction as our friend first example is to walk properly friction help us if friction is not there we can't able to move we slip again and again because the floor can't make irregularities and interlocking with our soles of shoes hence, it is difficult to walk on the soapy floor

[Satya_jit]

The sportsman's use shoes with Spikes because it's increase the friction of the road and take in they can run fast faster as compared to run with normal shoes

[ChaitraPinnamaneni]

Broo just kee pessing 15:13 and it seems like he is clappingg🎉🎉🎉🎉❤❤

[Dazzlinq-sg]

Its is difficult to walk on the marble floor with soapy water on it because soapy water forms a thin layer between irregularities present on our feet and the floor

This reduces interlocking of irregularities and thereby reduce friction

[kalpadipakmeshram]

Q 1. To increase friction and prevent slipping.
Q 2. It will make it a lot harder for us to walk as we can slip at any moment.

[KartikStudies-cjyf]

16:49
when the soapy water is spilled. It reduces the friction by filling the irregularities present on the surface of the floor. Thus, this makes walking difficult on the floor on which soapy water was spilled.