2007-07-20 22:09:00 · 13 answers · asked by Human Being 3 in Science & Mathematics ➔ Physics
a) Work is defined as the dot product of the force and the displacement.
b) Energy is the potential/ability of a object/system to do work.
c) Power is the rate of doing work i.e work divided by time
2007-07-20 22:27:49 · answer #1 · answered by ds 1 · 0⤊ 0⤋
Define Work Power And Energy
2016-12-10 16:27:20 · answer #2 · answered by luciani 4 · 0⤊ 0⤋
Power is rate of work done by a body while Energy is the capacity to do the work.
Every body requires energy to do the work.
Power is measured in Watts and Energy is measured in Joules.
Work is defined as a product of force and displacement
Work = Force x Displacement
= F x S
= F x S x cos theta (cos theta is the angle at which the force has acted)
2007-07-20 23:46:24 · answer #3 · answered by Ray 2 · 0⤊ 0⤋
Power is the measure of the rate of doing work or transferring energy. It is the physical force or strength. While energy is the capacity to do work. It is the quantity that denotes the ability to do work and is measured in a unit dimensioned in mass × distance²/time² (ML²/T²) or the equivalent.
Work
A measure of energy expended in moving an object; most commonly, force*distance. No work is done if the object does not move.
Hope this helps you.
2007-07-20 23:18:03 · answer #4 · answered by bluemaja_pooh 2 · 1⤊ 0⤋
Power is the rate at which work is done.
Energy is defined as capacity to do work.
Work is the displacement done by applying some force.
2007-07-24 03:31:17 · answer #5 · answered by Nikhil B 2 · 0⤊ 0⤋
1. Power- It is the rate of doing work that is Work/Time. SI unit is watt(W) or joule per second
2. Energy- It is the ability to do work. Si unit is joules(J)
3. Work or work done- Is the product of force applied and the distance moved by the body in the direction of force. SI unit is joules(J)
2007-07-21 04:30:23 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Power is measured in Watts (w)
Energy in Joules (J)
Power = Energy Converted / Time taken.
So power and energy are not the same thing.
2007-07-20 23:19:35 · answer #7 · answered by raindroppedxx 2 · 0⤊ 0⤋
"Power" and "energy" are almost synonymous.
Strictly speaking power is an abstract term meaning authority: "the power of government to rule", "people power", "police powers". It can also mean "strength"
Energy is a more precise, scientific term.
An athelete needs energy to run a race but not power.
He digests food to extract energy which is converted into strength in his legs.
Electical power, steam power, wind power, are different types of energy, and in these cases the correct term would be "energy", though "power" is acceptable in popular usage.
In an automobile the potenial energy in the petrol is converted into power to accelerate.
"Power" is the strength to do something extracted from "Energy".
2007-07-22 02:57:41 · answer #8 · answered by The Best........... 2 · 0⤊ 1⤋
power is the rate at which work is done. unit : watts
energy is the capacity to do work. unit : joules
work is the dot product of force and displacement
2007-07-21 22:43:12 · answer #9 · answered by kaushik patel 2 · 0⤊ 0⤋
power:-the rate at which work is done is known as power
energy:-da capacity of a body to do work is known as energy
work;-work is said to be done wen a force acting on a body causes a displacement in it..!!
work=forrceXdisplacement
2007-07-20 22:35:36 · answer #10 · answered by Anonymous · 1⤊ 0⤋