No easy way to answer this question (Or at least I can't) so read below: Rubber and Elasticity In most elastic materials, such as metals used in springs, the elastic behavior is caused by bond distortions. When force is applied, bond lengths deviate from the (minimum energy) equilibrium and strain energy is stored electrostatically. Rubber is often assumed to behave in the same way, but it turns out this is a poor description. Rubber is a curious material because, unlike metals, strain energy is stored thermally, as well as electrostatically. In its relaxed state rubber consists of long, coiled-up polymer chains that are interlinked at a few points. Between a pair of links each monomer can rotate freely about its neighbour. This gives each section of chain leeway to assume a large number of geometries, like a very loose rope attached to a pair of fixed points. At room temperature rubber stores enough kinetic energy so that each section of chain oscillates chaotically, like the above piece of rope being shaken violently. When rubber is stretched the "loose pieces of rope" are taut and thus no longer able to oscillate. Their kinetic energy is given off as excess heat. Therefore, the entropy decreases when going from the relaxed to the stretched state, and it increases during relaxation. This change in entropy can also be explained by the fact that a tight section of chain can fold in fewer ways (W) than a loose section of chain, at a given temperature (nb. entropy is defined as S=k*ln(W)). Relaxation of a stretched rubber band is thus driven by an increase in entropy, and the force experienced is not electrostatic, rather it is a result of the thermal energy of the material being converted to kinetic energy. Rubber relaxation is endothermic. The material undergoes adiabatic cooling during contraction. This property of rubber can easily be verified by holding a stretched rubber band to your lips and relaxing it. Stretching of a rubber band is in some ways equivalent to the compression of an ideal gas, and relaxation in equivalent to its expansion. Note that a compressed gas also exhibits "elastic" properties, for instance inside an inflated car tire. The fact that stretching is equivalent to compression may seem somewhat counter-intuitive, but it makes sense if rubber is viewed as a one-dimensional gas. Stretching reduces the "space" available to each section of chain. Vulcanization of rubber creates more disulphide bonds between chains so it makes each free section of chain shorter. The result is that the chains tighten more quickly for a given length of strain. This increases the elastic force constant and makes rubber harder and less extendable.
A stretched rubber band has elastic potential energy, which is stored when the rubber band is stretched and can be released when it is allowed to contract back to its original shape.
A rubber band will return to its original shape after it has been stretched due to its elastic properties.
Three examples of elastic force are a stretched rubber band returning to its original shape when released, a compressed spring pushing back to its original length, and a stretched balloon contracting when the air inside is released.
A stretched rubber band has potential energy stored in the form of elastic potential energy. When released, this energy is transformed into kinetic energy as the rubber band snaps back to its original shape.
A rubber band can be stretched to change shape but can go back to its original form when released.
A stretched rubber band has elastic potential energy, which is stored when the rubber band is stretched and can be released when it is allowed to contract back to its original shape.
A rubber band will return to its original shape after it has been stretched due to its elastic properties.
Three examples of elastic force are a stretched rubber band returning to its original shape when released, a compressed spring pushing back to its original length, and a stretched balloon contracting when the air inside is released.
Elastic or Rubber
A stretched rubber band has potential energy stored in the form of elastic potential energy. When released, this energy is transformed into kinetic energy as the rubber band snaps back to its original shape.
A rubber band can be stretched to change shape but can go back to its original form when released.
Astretched rubber band has potential energy.
The force that brings a stretched rubber band back to its original shape is called elastic potential energy. As the rubber band stretches, the elastic potential energy increases. When released, this energy is converted back to kinetic energy, causing the rubber band to spring back into its original shape.
The energy stored in a stretched rubber band comes from the work done to stretch it, which deforms the rubber molecules and stores potential energy in the molecular bonds. When the rubber band is released, this potential energy is converted back to kinetic energy as the rubber band snaps back to its original shape.
it ran off with the spoon after killing the fork
A stretched rubber band exerts a restoring force, known as tension, that pulls the ends back towards each other. This force is a result of the elastic properties of the rubber band, which try to return it to its original shape when stretched.
When rubber bands are stretched to their maximum capacity, the polymer chains within the rubber band are pulled apart and elongated. This causes the rubber band to store potential energy, which is released when the rubber band is released, causing it to snap back to its original shape.