Answer the following que
Write two situations from your daily life where different types of energy is utilized.
Ch 9 force work and enery question and answer.....
Answers
Answer:
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Explanation:
Energy gives an insight into the concept of work that helps to understand and interpret many natural phenomena. Closely related to work are the concepts of energy and power which are also covered in detail. In the first part of the chapter, Work and Energy, the focus is given on the concept of work. The term work is defined in scientific terms by citing a few real-life scenarios. The scientific conception of work is explained with the help of an activity.Apart from this, the work done by a constant force is also described. The work done under different situations are explained using examples, activities, diagrams and numerical.
In the next part of the chapter, Work and Energy, the concept of energy is explained. The importance of energy and its sources are discussed along with the interrelation between work and energy. Different forms of energy are mentioned with special emphasis on potential energy and kinetic energy. The equations of both types of energy are stated along with numericals based on them.
In the third section of the chapter, Work and Energy focus is given on the concept of rate of doing work i.e power. The term power is defined along with its S.I. unit. Interconversion of different units of power is also included in the chapter. The discussion ends with a note on the commercial unit of energy.
The chapter, Work and Energy covers the following topics:
Work
Energy
Rate of Doing Work