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Why are the units of work and energy same?
Work and Energy have the same unit because they are intimately related by the Work-Energy Theorem. This states that the Work done on an object moving from point A to point B is the difference in the Kinetic Energy it has at the two points. In simplified form it says that in order to do Work, you must use Energy; you can never do Work without using Energy, and so for convenience we give them the same unit. You didn't ask about Heat, but it really ought to be mentioned here, too; when you use Energy to do Work, some of the Energy usually gets converted to Heat by friction, so we can and do also use the same unit for Heat. Work and Energy and Heat are not the same thing, but they are inextricably related. By extension, the Theorem lets us define forms of Energy other than Kinetic Energy which enable us to do Work: Chemical Energy, Electrical Energy, Nuclear Energy, Gravitational Energy, etc. The SI unit of work or energy is Newton-meter (Nm). Another name for it is Joule (J). 1 joule is defined as the work done when a force of one newton acts over one metre of distance. 1 joule is also the amount of heat dissipated when a current of 1 ampere passes through a resistor of 1 ohm for 1 second (or 1 watt-second). Please use the following link to confirm the accuracy of the information presented here, or for more information.
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Which of the following does not have the same units as the others Kinetic Energy Momentum Potential Energy or Work?
the unit for energy is joules (J). :-)
the energy unit is called joules
Energy and work are measured in joules.
Each of those quantities has a different SI unit. They are: Force. . . . . . . . . Newton Height (length) . Meter Work. . . . . . . . . Joule Mass. . . . . . . . . Kilogram E…nergy . . . . . . . Joule (same as work)
The Joule is the SI unit of energy or work. 1 Joule = (1 Newton)*(1 meter) or 1 kg*m 2 /s 2
Because energy and work have the same 'dimensions', which is the scientist's way of saying they both have the same make-up of the basic units, which are length, mass, and time…. In fact energy can be defined as the capacity for doing work, which is potential energy, and when work is done energy is expended. When a power plant generates say 1000 MegaWatts, this is called Energy, and it is sent out to the grid. At the same time many different loads are using this energy, some for electric motors, some for heating, others in various industrial processes, some to run computers, and so on. These loads are all doing work, and consuming energy in doing so. 1000 MW is 109 Watts, and this means 109 Joules per second, so that is the work being done every second by all these various loads combined.
Joule- a metric unit of work and energy
Because energy and work have the same dimensions: energy is the ability to do work and work is the expenditure of energy. The SI unit is the joule.
because work is a transformation of energy. If there is some loss of energy in a process then same amount of work will be created. For this reason the unit of work and energy …is same.
In the SI system the units are Joules. You can also use ftlbf (footpoundforce). For thermal energy use calories or BTU
The most common unit of energy in biology is calories. A calorie is a unit of energy, require to raise 1 kilogram of water to 4.1868 joules.
Whack H is a unit of work and energy