Mechanical Energy

MECHANICAL ENERGY a In mechanics, mechanical energy is called the sum of the kinetic and potential (of various types). In the potential energy can also be considered elastic potential energy, although this generally applies to the study of engineering problems, not physical. It expresses the ability of a body with mass to perform work. Energy associated with a Hydropower: Water is dropped and profits gained potential energy. It is used to generate electricity and to move flour mills. a Wind: Produced by the winds generated in the atmosphere.

It is used for a generate electricity as a mechanism of extraction of groundwater or of certain types of mills for agriculture. a Tidal energy: Product of the movement of tides and waves. Is transformed into electrical energy. ENERGY CINAT a The kinetic energy of a body is an energy that arises in the phenomenon of motion. It is defined as the work required to accelerate a body of a given mass from its equilibrium position to a given speed. Having gained this energy during acceleration, the body maintains its kinetic energy regardless of the speed change.

Negative work of the same magnitude might be required for the body to return to its equilibrium state. POTENTIAL ENERGY a The potential energy is the ability of bodies to perform work (), depending on their configuration on a system of bodies exert forces on each other. Can be thought of as the energy stored in a system, or as a measure of work that a system can deliver. More rigorously, the potential energy is a scalar quantity associated with a force field (or as in elasticity tensor field tensions). When the potential energy is associated with a force field, the difference between the values of the field in two points A and B equals the work done by the force for any route between B and A. CLAUDIA TB