Concept of Energy

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Concept of Energy: Overview

This topic explains concepts such as Energy, etc.

Important Questions on Concept of Energy

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What is the difference between energy and work done?

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The energy produced by converting one microgram of matter completely into energy will be

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Which of the following are sustainable energy sources?

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Convert 2.5×105 J to nearest integer in kilojoules.

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 The ability to do work is called _____.

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A force is applied upon a body of 40 kg then its velocity increases from 1 ms to 2 ms. Determine work done by the force in joules. 

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What do you mean by energy?

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Define energy. State its SI unit.

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What is meant by energy?

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Name the type of energy possessed by green plants after performing photosynthesis.

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State the type of energy possessed by a hot electric iron.

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State the type of energy possessed by the Sun.

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State the type of energy possessed by a burning matchstick.

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Ability to do work is -

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What is electric energy? How is electrical energy is produced in following of the plants? Explain.
(a) Hydro electric plant
(b) Wind electric plant
(c) Solar energy plant

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How work, energy and power are related to each other?

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What is energy? Write the unit of energy?

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What is the commercial unit of electrical energy?

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SI unit of energy is _____.

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Name the energy possessed by the nucleus of an atom.