Class 9 Physics Chapter 11 | Potential Energy - Work, Energy, and Power

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✅ In this video,

✔️ Class: 9th
✔️ Subject: Physics
✔️ Chapter: Work, Energy, and Power (Chapter 11)
✔️ Topic Name: Potential Energy
✔️ Topics Covered in This Video: Chapter 11 Potential Energy - Work, Energy, and Power
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00:00 Introduction
00:44 Potential Energy
20:11 Websites Overview
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Points covered in this video:-

Potential Energy
The energy of a body due to its position or change in shape is known as potential energy.
Suppose a ball of mass m is raised to a height h above the surface of the earth.
The force acting on the body is the gravitational pull of the earth m x g which acts in the downward direction.
To lift the body above surface of the earth we have to do work against the force of gravity.
Work done = force x distance
W = m x g x h
PE = m x g x h
= mgh .

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