Elastic energy is the mechanical potential energy stored in the configuration of a material or physical system as it is subjected to elastic deformation by work performed upon it. The spring is initially unstretched, with the unconstrained end of the spring at position x=0. By contrast, the behavior of compressible fluids, and especially gases, demonstrates the essence of elastic energy with negligible complication. In other words, the system loses stored internal energy when doing work on its surroundings.

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It has potential energy stored in it due to its height, and that energy will be turned into kinetic energy as it falls. Forces applied to an elastic material transfer energy into the material which, upon yielding that energy to its surroundings, can recover its original shape. You can produce your own elastic energy by stretching a muscle! Please read the, Elastic potential energy in mechanical systems, Learn how and when to remove these template messages, Learn how and when to remove this template message, https://en.wikipedia.org/w/index.php?title=Elastic_energy&oldid=979745264, Articles needing additional references from June 2015, All articles needing additional references, Wikipedia introduction cleanup from June 2015, Articles covered by WikiProject Wikify from June 2015, All articles covered by WikiProject Wikify, Articles needing expert attention from February 2018, Wikipedia articles needing factual verification from February 2018, Articles with multiple maintenance issues, Creative Commons Attribution-ShareAlike License, This page was last edited on 22 September 2020, at 15:06. C For instance, a compressed spring has elastic potential energy until the coils return to their original alignment and push other objects away. Select a subject to preview related courses: From Hooke's law we learned that force and displacement are proportional, and they are, in fact, directly proportional to each other.

h Then learn how we find the formula for elastic potential energy using a spring. Elastic potential energy is the energy an object has in it due to being deformed.

Elastic energy is stored in the bonds between the atoms in an object or substance. How far must a spring, of negligible mass with a force constant k = 1800 N/m, be compressed for an amount 3.50 J of potential energy to be stored in it? As we've seen, elastic energy can be found in things like elastic bands, squishy balls, a bow and arrow, and coiled springs. This requires the assumption, sufficiently correct in most circumstances, that at a given moment, the magnitude of applied force, Fa is equal to the magnitude of the resultant restoring force, but its direction and thus sign is different. The energy is stored until the force is removed and the object springs back to its original shape, doing work in the process. What is its potential energy when it is compress. Students should notice a direct relationship between the displacement and the potential energy of the rubber band. The displacement of the spring is how far the spring has stretched or compressed from its original shape.

Spring potential can also be utilized in control systems or mechanical systems to reduce the impact of disturbance, such as in motor vehicles.

Elastic energy is energy stored in an object due to a force that temporarily changes its shape, such as squashing or stretching. You can compress or stretch it (to some extent, of course). When you deform these objects, they move back to their original shape on their own. So Hooke's law gives us our force. ε It is equal to the work done to stretch the spring, which depends upon the spring constant k as well as the distance stretched. A spring is used to store elastic potential energy in many mechanical devices (like the shock absorbers in cars).
are the Lamé constants, and The atoms of a rubber ball are under stress when the ball is compressed. Donate or volunteer today! is the spring constant of the object, measured in newtons per metre, Elastic waves that are large on the scale of an isolated object usually produce macroscopic vibrations sufficiently lacking in randomization that their oscillations are merely the repetitive exchange between (elastic) potential energy within the object and the kinetic energy of motion of the object as a whole.


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