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प्रश्न
The S.I. unit of energy is .............
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उत्तर
The S.I. unit of energy is joule.
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संबंधित प्रश्न
MULTIPLE CHOICE TYPE
In an electric cell which in use, the change in energy is from:
State two disadvantages of producing hydroelectricity.
Name the physical quantity whose SI unit is Nm.
What is the work done against gravity when a body is moved horizontally along a frictionless surface?
Can work done be zero even if force acts on the body?
Fill in the boxe to show the corresponding energy transformation.
Give an example
Light energy changes to electrical energy.
In what way does an ‘Ideal machine’ differ from a ‘Practical machine’?
Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
A wind-mill is lifting water from a well.
