Why are energy and work measured in same units?

Answer 1

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.

Answer 2

Energy and work are measured in the same units because work is defined as a transfer of energy. Both energy and work are measured in joules, which is the basic unit for quantifying either the amount of energy transferred or the work done on an object. This allows for a consistency in measuring and comparing different forms of energy and work.

Answer 3

Work and Energy are analogous to Debt and Payment If you owe me $1, you should pay me $1 to cancel your debt. If work requires 1 J, then you must have the energy of 1 J to satisfy the work requirment, or the job is NOT DONE.

Answer 4

Well its kinda like a hole calss bout in a hand full of m&m and the teatcher had a big buckit and told you to put all your m&ms in it and then he grabe more and re-gave them out. That's like the energy they kinda mix it togather and then send it out all over.

I hope that ansered your qustion.

I learned that today in sciene. and that how he explaned it.

Answer 5

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.

Answer 6

Energy and work have the same units because......we say energy is the ability to do work....work is the energy transferred from a body to another.....the donor of energy is said to have done work upon the acceptor...

Answer 7

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.

Answer 8

The Joule, commonly abbreviated J, is the SI unit for work and energy. 1 J = k-m2/s2

Answer 9

Consider "work" as a "change in energy" or "transfer of energy". It makes sense to use energy units for work.

Answer 10

Yes. joule is that one