Humans wind moving water falling rock machines moving car
Las formas de energia mecanicas mas importanates se las denominan energia cinetica y energia potencial (energia potencial elastica y energia potencial gravitatoria)
The term "Mechanical Energy" is used to describe the potential energy and kinetic energy that is present in the components of a mechanical system. The study of mechanics (behaviour of physical bodies when subjected to forces or displacements) is to do with the motion of physical bodies and the forces that act on them. Everyday objects contain atoms and molecules that are constantly bouncing off each other. Mechanical energy includes the kinetic energy (energy that a body possesses as a result of its motion) of these particles or potential energy stored in the physical arrangement. A compressed solid will exert pressure because electromagnetic forces between particles tend to push them apart, thus compressing a solid (moving the particles "uphill" against repulsive electromagnetic forces), will store potential energy in a similar way that pushing a boulder up a hill does – i.e. Moving the object against the attractive gravitational force of the Earth). Alternatively, a compressed gas exerts pressure due to independently moving particles colliding with the walls of the container and changing direction. The particle is accelerated (its velocity vector changed), and the acceleration times the mass of the particle gives the force applied. Compressing a gas will change the average kinetic energy of the particles, and this will increase temperature of the gas. The pressure will also increase, due to the same number of particles being forced into a smaller volume, causing them to collide more often with the walls. The force of any given collision is the same, but the number of collisions has increased.