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In this episode, we will be discussing Work and Energy One Shot Class 9 Science (Physics) Chapter 11 concepts and MCQs to help boost your preparation for the upcoming final exam.
Class 9 Chapter 11 Work and Energy delves deeply into the concepts of work, energy, and power. In everyday life, we define work as any useful physical or mental labour. However, in Science, work is defined differently. The magnitude of a force acting on an object multiplied by the distance moved in the direction of the force equals the work done. Join this class to learn about work and energy in detail.
In this online class, your favouirte BYJU’S educator, Saurabh Sir, discusses the following concepts in detail:
- Work and energy
- Forms of energy
- Work-energy theorem
- Factors affecting kinetic energy
- The potential energy of an object at a height
- Law of conservation of energy
- Commercial unit of power
This is a great session to help revise all the important concepts in your Class 9 Science Chapter 11, Work and Energy. For similar Class 9 Science video lessons, subscribe to our BYJU’S - Class 9 & 10 channel.
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00:00 Work and Energy One Shot Class 9 Science (Physics) Chapter 11
6:15 ANTHE - Aakash National Talent Hunt Exam
9:29 Scientific Concept of Work
11:05 Work Done
18:00 Work Done by a Constant Force
21:15 Types of few Works
25:39 Work Done - Positive
25:47 Work Done - Negative
27:10 Zero Work
33:17 Q.State whether the work done is positive or negative is below circumstances
42:26 What do we need to do work?
44:12 What is Energy?
57:54 Forms of Energy
58:22 Mechanical Energy
1:01:33 Kinetic Energy
1:02:56 Kinetic Energy depends upon mass
1:03:44 Kinetic Energy depends upon velocity
1:04:36 Dependance of Kinetic Energy on Mass and Velocity
1:06:22 Which of these objects possess kinetic energy?
1:11:30 Relationship between Work Done & Kinetic Energy
1:18:44 Potential Energy
1:20:27 Potential Energy of an object at a height
1:23:51 Gravitational Potential Energy depends upon height
1:24:44 Gravitational Potential Energy depends upon mass
1:25:00 Does Potential energy depend upon path?
1:30:52 Conversion of Energy
1:31:10 Conversion of Mechanical Energy
1:33:44 Transformation of Energy
1:35:00 Law of Conservation of Energy
1:36:04 What you can say about the work done in each case?
1:39:57 About Telegram
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