Mechanical energy store and transfer .pptx

energy store and transfer

1. Types of Energy

2. Energy Energy is the capacity of a physical system to do work  

3. Types of Energy

4. Kinetic Energy     – mass     – velocity   Kinetic energy E k is energy associated with the state of motion of an object

5. Potential energy is stored energy in the system in some fashion. Once the potential energy is released, it can do work.

6.     Zero level – mass     – gravity acceleration   – height   Gravitational Potential energy

7. Elastic Potential energy – spring constant     – displacement  

8. Potential energy

9.   The mechanical energy E mec of a system is the sum of its potential energy E p and the kinetic energy E k of the objects within it:

10. Energy transformation

11.     1 Energy transformation

12.         1 2 Energy transformation

13.             1 2 3 Energy transformation

14.             1 2 3 4     Energy transformation

15.             1 2 3 4       Energy transformation

16.   Conservation of Mechanical Energy Energy is never created or destroyed; it only changes form .

17. Conservation of Energy

18. Energy transformation

19. Conservation of Mechanical Energy