Скачать или смотреть 4.7 | Work Energy Theorem | Class 11 Physics New Book

In this Class 11 Physics lecture (Punjab Curriculum – New Book), we discuss one of the most fundamental concepts of mechanics — the Work-Energy Theorem. This theorem connects the ideas of force, motion, and energy, forming a powerful tool to solve problems in dynamics.

In this video, you will learn:

Definition of Work-Energy Theorem.

Derivation of the theorem using Newton’s Second Law of Motion.

Mathematical proof that: 𝑊 = Δ𝐾 = 𝐾2 − 𝐾1

Explanation of work done by a constant force and its effect on kinetic energy.

Understanding how work done on a body changes its speed and kinetic energy.

Examples and applications of the theorem in daily life and physics problems.

Key Concepts Covered:

Relationship between work and energy.

How force and displacement determine kinetic energy change?

Connection between Newton’s laws and energy approach.

Solving numerical problems using Work-Energy Theorem.

This lecture is ideal for:

Punjab Board F.Sc Physics (1st Year – New Book)

FBISE, Sindh Board, KPK Board, AJK Board

O Level, A Level, AP Physics, IB Physics

By the end of this lecture, you will clearly understand how the Work-Energy Theorem links motion with energy and why it is an essential part of solving problems in mechanics.

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