This course explains clearly the concept of Work and Energy :- 

1) Get a feel for Work and Energy : animation of a Turbine wheel in a hydraulic dam

2) Work-Energy Theorem: Work and kinetic energy

3) Equation for Work done :- case : animation of a robot pulling a block over a horizontal plane. 

4) Work done when Force is constant

5) Work done by Spring : varying force as spring expands or compresses

6) Conservative and Non-conservative forces 

7) Potential Energy concept for a Spring

8) Mass-Energy equivalence 

9) Solved Problems