What is power, work and energy?
Answers
Power
Power is the rate at which work is done. Because work is energy transfer, power is also the rate at which energy is expended.
A 60-W light bulb, for example, expends 60 J of energy per second.
Great power means a large amount of work or energy developed in a short time.
Work
Work, in physics, measure of energy transfer that occurs when an object is moved over a distance by an external force at least part of which is applied in the direction of the displacement.
Energy
Energy, in physics, the capacity for doing work.
It may exist in potential, kinetic, thermal, electrical, chemical, nuclear, or other various forms.
There are, moreover, heat and work—i.e., energy in the process of transfer from one body to another.
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Hello friend.
Energy:
1)Of the body to is capacity to do work.
2)Energy spent does not depend on time.
3)The SI unit of energy is joule. J
Power:
1)Power of a source is the rate at which energy is supplied by it.
2)Power depends on the time in which energy is spent.
3)The SI unit of power bank is watt. W
Work
Work is used for some sort of exertion for various activities.
Work is said to be done only when body moves under the influence of a force if there is no displacement of the body even when force acts on it. The work done us said to be zero.
Hope this answer would help you.
Thankyou so much friend for your points.