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State if the following statement is true or false. Give a reason for your answer. Total energy of a system is always conserved, no matter what internal and external forces on the body are present. - Physics

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Question

State if the following statement is true or false. Give a reason for your answer. 

Total energy of a system is always conserved, no matter what internal and external forces on the body are present.

Options

  • True

  • False

MCQ
True or False

Solution

This statement is False.

Explanation:

Even though internal forces are in equilibrium and do not perform work on a body, it is the external forces that possess the capability to do work. Consequently, external forces can alter the energy state of a system.

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Chapter 6: Work, Energy and Power - Exercises [Page 135]

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NCERT Physics [English] Class 11
Chapter 6 Work, Energy and Power
Exercises | Q 7.2 | Page 135

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