Energy is a property of matter that allows it to do work. It is the ability to cause change and make things happen. Energy can take many forms, such as heat, light, sound, electrical, chemical, and kinetic.
“Force is a push or pull on an object that results in a change in its motion”
“Work in physics refers to the amount of energy exerted to move an object from one place to another or to change its state of motion.”
Imagine you are carrying a heavy box from one room to another. The amount of effort you put in to move the box is an example of work. The more weight you carry, the more work you do.
The S.I unit of work is Joule.
Suppose a constant force “F” acts on a body and motion takes place in a straight line in the direction of force then work done is equal to the product of magnitude of force “F” and the distance “d” through which the body moves
W=FdCos∅
In that case, we define the work by the force as the product of the component of the force along the line of motion and the distance “d”; the body moves along that line, i.e.
Suppose a constant force “F” acts on a body
Work = (a component of force) x (distance)
W=FCos∅.d
If ∅ between force and displacement is 0, Then cos (0) = 1 and work becomes
W=F.d