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The NCERT Solutions for Class 9 Science Chapter 11 Work and Energy have been given in this article. Some of the important topics of Class 9 Science Chapter 11 Work And Energy include:
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NCERT Solutions for Class 9 Science Chapter 11
Important Topics for Class 9 Science Chapter 11 Work and Energy
Work is closely related to energy. The work–energy principle states that an increase in the kinetic energy of a rigid body is caused by an equal amount of positive work done on the body by the resultant force acting on that body.
Work Energy Theorem and its Applications
Work can be defined as the transfer of energy into an object in order to cause it to move or displace. Energy can be expressed as the capacity to do work.
| Example: State the Work-Energy theorem in brief. Solution: The Work-Energy theorem expresses the following formula: Here,
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Kinetic Energy
Kinetic Energy can be defined as the energy generated due to motion by an object. It can also be expressed as the energy that helps accelerate a body of rest to motion.
| Example: What are the five major types of Kinetic Energy? Solution: The five major types of Kinetic Energy are:
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Thermal Energy
Thermal energy refers to the energy that a body is known to generate during when its atoms or molecules displace.
| Example: What are two important points of Thermal Energy? Solution: The two major points of Thermal Energy include:
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