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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 8

The S.I. unit of energy is ............. - Physics

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प्रश्न

The S.I. unit of energy is .............

रिकाम्या जागा भरा

उत्तर

The S.I. unit of energy is joule.

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पाठ 4: Energy - Objective questions [पृष्ठ ७६]

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सेलिना Concise Physics [English] Class 8 ICSE
पाठ 4 Energy
Objective questions | Q 2.04 | पृष्ठ ७६

संबंधित प्रश्‍न

Explain briefly why the work done by a fielder when he takes a catch in a cricket match is negative.


What is the work done by the moon when it revolves around the earth?


Work done by a boy depends on the time in which he does work.


Work is said to be done by a forte only when ................


Define 1 joule of energy.


Give reasons for the following A teacher moving around in the class is doing work but a child standing and reading a book is not doing any work.


A force of 30 N acts on a body and moves it through a distance of 5 m in the direction of force. Calculate the work done by the force.


A body of mass 5 kg falls from a height of 10 m to 4 m. Calculate:

The loss in potential energy of the body, 


State the law of conservation of energy.


Fill in the blank with suitable word : 
The work done on a body moving in a circular path is __________


Give two examples of work done.


Name the physical quantity which is equal to the energy of a body.

Name the type of energy possessed by a body due to a change in configuration.

Name four different forms of energy.

What is meant by power?

How is horse power related to the S. I. unit of power?


How much energy is gained by a box of mass 20 kg when a man, runs carrying the box with a speed of 3 m/s-1 to catch the bus?


A force is applied on a body of mass 20 kg moving with a velocity of 40 ms−1. The body attains a velocity of 50 ms−1 in 2 seconds. Calculate the work done by the body.


________ is said to be done when a force is acting on it.


A ______ should act on an object.


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