1. KINETIC ENERGY AND WORK
Energy is a very important concept in science but there is one simple definition of energy.
Technically, energy is a scalar quantity associated with a state (or condition) of one or more objects.
It has a great many forms or types.
Kinetic Energy
Kinetic energy K is associated with the state of motion of an object.
Faster the object moves, greater the kinetic energy is.

2. The SI units of kinetic energy (and every other type of energy) is joule (J).

3. WORK
if we accelerate an object
if we decelerate an object

4. An expression for the work?

6. Work
Units of work:
Same with kinetic energy - joules

7. Scalar Product of Two Vectors

8. Work done by a varying force

10. Work done by a spring force