what is energy ?

DEF OF ENERGY: The capacity of power to do work , such as the capacity to move an object(of a given mass)by the application of  force.

Energy can exists in a variety of forms.....

1. 1.ELECTRICAL ENERGY
2. 1.MECHANICAL ENERGY
3. 2.CHEMICAL ENERGY
4. 3.THERMAL OR NUCLEAR ENERGY

AND can be transformed to one form to another.
example of energy in sentences :
1.the kids are always so full of energy
2.they devoted all there energy to the complete of the project
3.she puts a lot of energy in to her work
4.the newer appliance conserve more energy
energy two types 1.potential energy 2. kinetic energy