## Elastic energy

The concept of elastic **energy** is not confined to formal elasticity theory which primarily develops an analytical understanding of the mechanics of solid bodies and materials [ 1 ] :See Ch 1 §1 . The essence of elasticity is reversibility. Forces applied to an elastic material transfer **energy**

**wikipedia.org**| 2011/6/7 22:18:37

## Elastic-rebound theory

The elastic rebound theory is an explanation for how **energy** is spread during earthquakes. As plates on opposite sides of a fault are subjected to force and shift, they accumulate **energy** and slowly deform until their internal strength is exceeded. At that time, a sudden movement occurs along

**wikipedia.org**| 2011/10/3 23:20:54

## Elastic map

the node with the smallest number). The data set S is divided on classes . The approximation **energy** is distortion this is the **energy** of the springs with unite elasticity which connect each data point with its host node. On the set of nodes an additional structure is defined. Some

**wikipedia.org**| 2011/5/25 11:56:49

## Elastic collision

An elastic collision is an encounter between two bodies in which the total kinetic **energy** of the two bodies after the encounter is equal to their total kinetic **energy** before the encounter. Elastic collisions occur only if there is no net conversion of kinetic **energy** into other forms.

**wikipedia.org**| 2011/8/21 8:23:15

## Helmholtz free energy

In thermodynamics , the Helmholtz free **energy** is a thermodynamic potential which measures the “useful” work obtainable from a closed thermodynamic system at a constant temperature and volume. For such a system, the negative of the difference in the Helmholtz **energy** is equal to the

**wikipedia.org**| 2011/7/28 9:49:11