NCERT Grade 11 Chapter 6, Work, Energy and Power, is a part of Unit IV, Work, Energy and Power that holds 17 marks of weightage in combination with Unit V and VI; Motion of System of Particles and Rigid Body and Gravitation respectively. The students are aware of the basic terms, work, energy and power. In NCERT Grade 11 Chapter 6, Work, Energy and Power, students will understand the relation among these three physical quantities. Scalar product and its distributive laws taught in this chapter, forms the foundation for further complex concepts.
The work and energy theorem is explained in correlation with the derivation learnt in the previous chapters. This helps to revise and reconnect. Further in the chapter, concepts of Kinetic energy, work done by variable force, work-energy theorem for a variable force, potential energy, conservation of mechanical energy, potential energy of a spring are explained in a very detailed manner using theoretical and mathematical expressions. Keeping in mind that energy comes in many forms which transform into one another in ways, laws of conservation of different forms of energy such as heat, chemical energy, electrical energy are explained. Similarly, principle of conservation of energy is also explained in this chapter.
Second part of NCERT Grade 11 Chapter 6, Work, Energy and Power, deals with the subunit, Power and its different dimensions. Collisions, elastic and non-elastic, collisions in one and two dimensions, experiments and cases are explained with the help of illustrations in this chapter. Get 100 percent accurate NCERT Solutions for Class 11 Physics Chapter 6 (Work, Energy and Power) solved by expert Physics teachers. We provide solutions for questions given in Class 11 Physics text-book as per CBSE Board guidelines from the latest NCERT book for Class 11 Physics. The topics and sub-topics in Chapter 6 Work, Energy and Power are given below.
Ex 6.1 - Introduction
Ex 6.2 - Notions of work and kinetic energy : The work-energy theorem
Ex 6.3 - Work
Ex 6.4 - Kinetic energy
Ex 6.5 - Work done by a variable force
Ex 6.6 - The work-energy theorem for a variable force
Ex 6.7 - The concept of potential energy
Ex 6.8 - The conservation of mechanical energy
Ex 6.9 - The potential energy of a spring
Ex 6.10 - Various forms of energy : the law of conservation of energy
Ex 6.11 - Power
Ex 6.12 - Collisions.
We cover all exercises in the chapter given below:-
Chapter 6 - 30 Questions with Solutions.
Other than given exercises, you should also practice all the solved examples given in the book to clear your concepts on Work, Energy and Power. Download the free PDF of Chapter 6 Work, Energy and Power and take the print out to keep it handy for your exam preparation.