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Chapter 11 Work and Energy


I Younis Khan here provided complete detailed lectures of Chapter 11 Work and Energy of Class 9. Students need not to buy any course from any other website. This Portal is a complete educational Portal with detailed lectures and online quizzes. So here all lectures and quizzes of this chapter is provided. 

In this Course  I have provided following content:

  1. Introduction, work, Work done by Constant force, Types of Work and Units of Work. 
  2. Energy, Various forms of energy, Kinetic Energy, Potential Energy, Conservation of Mechanical Energy for freely falling body. 
  3. Rate of Doing Work, Units of Power, Commercial unit of Energy. 
  4. Numericals based on all above Concepts
  5. Online quizzes and assignments