Work Energy and Power In 30 Min | CBSE Class 9 Science | Physics | Vedantu Class 9

Work Energy and Power In 30 Min | CBSE Class 9 Science | Physics | Vedantu Class 9
In today's session, Physics Master Teacher Abhishek Sir sir takes you through the important topic: Work Energy and Power, as it is one of the most important and scoring topics in the Science (Physics), Class 9 Science Book for CBSE Examination.

Timestamp:
00:00 introduction,
4:02 mind map,
4:55 what is work?
10:40 what is energy?
19:00 Mechanical energy,
19:55 Power,

Abhishek Sir enlightens you with the Class 9 preparation strategy for Physics and how to revise crucial topics quickly and effectively to enhance the knowledge. This session will mainly be around the topic - Work Energy and Power. In today's class, Abhishek Sir will talk about the topic and share some preparation tips on how to crack the CBSE Class 9 Exam.

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#workenergyandpower #vedantuclass9

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[roshnikharwa]

Video starts at 4:04 save your time because it is very important for u in exam days🙂

[nootherkyle]

BYJU's Ad on Vedantu 😂 Youtube is playing with both..

[kalyanisrivastava]

9:29 Work done by the gravitational force will be 0, because the angle between the displacement and the force applied by gravitational force is 90°( theta) . So the work done will be zero.

[soul_captures]

Legends🔥are watching this before a day of science exam🤣🤣

[devsonkarr]

Who Learn From YouTube Not From Online Classes 😂😂

[akashm]

Legends are watching in 2021 after studying whole year in online classes 😂😂😂

[nimeshsingh]

Sir the work done at 10:00 is zero because the gravitational force is acting downwards and the displacement is forward. In such case the displacement is perpendicular to the force applied so it will be 0

[amitsinghbaidwal]

4:04 start guys save your precious time

[satyandra]

Stop reading comments and focus on the video😂🤣

[vinodparasarjimaharaj]

Everyone who is here a day before exam is searching for just 30 minutes video to save time

[seetasharma]

Thanks sir 😁 for this session
I am glad that you finished this chapter in just 30 minutes 😁
And I really understand it very well and It has now become very easy for me . Thank you sir 😊😊

[adityaagarwal]

Yaar ye app wale itne aache teachers kaha se laate h
Hamere school wale toh aise teachers Laate h Jo samajh se Bahar h

[anandnani]

~Theta = 90° so, force applied by gravitational force is 0.
~No Displacement from the Earth's surface.
~No Force is applied on or against the gravity so, it is 0

These 3 are the things i found

[kanchanlalwani]

Searching for comment which tell the time of starting of the video 😂😂

[rujulakapoor]

10:00, as much as I know, if the gravitational pull makes an object fall, then there is work, namely Displacement*9.8kg/ms2. If the object's initial position was on the surface and after the displacement, it still stays on the surface, then the work done by gravity is 0, as the displacement is not in the direction of the force.

[redknight]

9:50 I think the work done by gravity is 0 as the angle between the ground and the box's center of gravity is 90 degree

[Anmolsharma]

Me who is watching this 5hrs before exam with2x speed 😂😂

[abhishekpresad]

Who all are here for 11th entrance examination

[pragati]

Thanks for this shortest & clear explanation of work and energy
Very helpful..❤

[anupmishra]

Legend watch this videos in double speed.... 😂😁