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प्रश्न
Fill in the boxe to show the corresponding energy transformation.
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उत्तर
Mechanical energy ⇌ electrical energy
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संबंधित प्रश्न
Define 1 joule of work.
Fill in the blank with suitable word :
1 joule is the work done when a force of 1 __________ moves an object through a distance of one __________ in the direction of __________.
What is the work done when the object acted upon by a force remains at rest?
A girl of mass 50 kg runs up a flight of 40 steps in 20 seconds. If each step in 20 cm high, calculate the power developed by the girl. (g= 10 ms-2).
State the energy changes which take place when A piece of magnesium wire is burnt in a jar of oxygen.
What do you understand by the term energy? Is energy a scalar or vector? How is the energy possessed by a body measured?
A man climbs a slope and another walks same distance on level road. Which of the two expends more energy and why?
Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
Food grains are getting dried in the sun.
Work done by this force at any instant is ______.
