How are work energy and power related to each other?

Answer 1

Very closelyEnergy is the ability to do work. Objects that have greater energy can do more work.

Check out this link: http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html

Click on Mechanics; then click on Work, Energy, and Power.

Additional AnswerWork (W) is done whenever one form of energy is changed into another form of energy. For example an electric motor does work by changing electrical energy into kinetic energy.

Work is very closely related to heat. Heat (Q) describes the transfer of energy from a warmer body to a cooler body.

For example when an electric kettle is switched on, electrical energy is converted into internal energy -so, work is being done. As the kettle's internal energy increases, its temperature increases above the surrounding temperature and, so, energy is transferred away from the kettle by heat.

So, the increase in energy of the kettle is the difference between the work done on the kettle and the heat lost from the kettle -i.e. W - Q = change of energy.

Answer 2

Work and Energy are actually different interpretations of the same thing. Work, as defined by work = force X distance moved in the direction of the force (W=Fd) is an expression for energy expenditure by an action. If you kick a football in the air your foot will do work on the football (as described), this will instantly be converted into kinetic energy (the football moving), gravitational potential energy (the football going up into the sky) and a host of others. The reason being is that energy can neither be created or destroyed but simply transferred from one aspect to another. Notice also that the expressions for both Ke and GPe have the same units as work, ie Ke = 1/2 X mv2 [units: mass X length2 / time2 or Nm in SI] GPe = mgh [units: mass X length2 / time2 or Nm in SI] W=Fd [units: mass X length2 / time2 or Nm in SI] Infact the expressions are so closely linked you can think of GPe as a particular case of work - GPe = mgh which is mass X acceleration due to gravity X distance vertically since force = mass X acceleration (Newton's first law) mg is a force and the height gain is a distance in the direction of mg which is the d part of the equation - w = Fd

Answer 3

They are related because you need energy in order to do work. Comment if you think this didn't help. Thanks bye!

Another Answer

Energy is the ability to do work. Work is the process of converting one form of energy into another. For example, an electric motor converts electrical energy into kinetic energy, so it is doing work.

As an analogy, you can compare energy with 'savings' and work with 'spending'. You need savings in order to spend. Spending converts your savings into goods.

Answer 4

when you do work on an object, some of your energy is transfer

Answer 5

In physics terms, work is a force acting through a distance, energy is in the same units as work, and power is work per unit of time.

Answer 6

In science is the ability to do work.