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प्रश्न
Give an example
Chemical energy changes to heat energy.
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उत्तर
Candle flame
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संबंधित प्रश्न
A force of 7 N acts on an object. The displacement is, say 8 m, in the direction of the force (see the given figure). Let us take it that the force acts on the object through the displacement. What is the work done in this case?
Why is a jack screw provided with a long arm?
Work done by a boy depends on the time in which he does work.
Define the term energy.
A box of weight 150 kgf has gravitational potential energy stored in it equal to 14700 J. Find the height of the box above the ground. (Take g = 9.8 N kg-1)
What are the quantities on which the amount of work done depends? How are they related to work?
A boy does work when he pushes against a brick wall. (yes/no).
A bucketful of water is to be drawn from a well ______ will be done when a ______ is applied to do this because there will be a ______ of water.
(displacement, work, force)
