NCERT Solutions for Class 11 Physics Chapter 6 Work, Energy, and Power deals with the important concepts of the chapter. Work is referred to as the process of energy that is transferred to an object's motion by applying force. It is generally represented as the product of displacement and force. Power is the amount of energy that is transferred in a unit of time.
Unit 4 Chapter 6 Work, Energy, and Power along with Unit 5 and Unit 6 have a weightage of 17 marks in the Class 11 Physics Examination. The NCERT Solutions for Class 11 Physics Chapter 6 covers Conservative Force, Conservation Of Mechanical Energy, and Relation Between eV And Joule.
Download PDF: NCERT Solutions for Class 11 Physics Chapter 6
NCERT Solutions for Class 11 Physics Chapter 6
Class 11 Physics Chapter 6 – Concepts Covered
- Work is said to be done when a force that is applied to the body displaces it through a certain distance in the direction of the applied force.
| It is measured as the product of the force and the distance moved in the direction of the force applied, i.e., W = F.S |
- If an object undergoes a displacement ‘S’ along a straight line while it is acted on by a force F that makes an angle 0 with S. The work done would then be the product of the magnitude of displacement and the component of force in the direction of displacement.
| \(W = FScos \theta = \overrightarrow {F}.\overrightarrow {S}\) |
- The energy possessed by a body is its capacity to do work. Energy is measured in the unit Joule.
| Mechanical energy can be classified as Kinetic energy and Potential energy. |
- Kinetic Energy is the energy possessed by a body by virtue of its motion. For an object having mass m and velocity v, the kinetic energy is given by:
| Kinetic Energy or KE = ½ mv 2 |
- Potential Energy is the energy of a body by virtue of its position or condition.
| Potential energy is of two types – gravitational and elastic potential energy. |
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