This force is known as tension.
Deforming force
If a pulling force is exerted on an elastic band, then the elastic band will stretch. The more force that is exerted, the more the band will stretch.
Elastic energy is also called Elastic Potential energy. It is the potential energy stored as a result of a deformation of an elastic object such as a spring. According to Hooke's law the force required to stretch the spring will be directly proportional to the amount of stretch.
the weight
Strain force
It may loose its elastic nature.
Elastic Spring Force
Elastic solids stretch when pulled, get smaller when compressed/squeezed, and return to normal when no force is upon them.
Tension forces are two forces acting on one object, moving in opposite directions (away from one another) to stretch the object. Compression forces are two forces acting on one object, moving in opposite directions (towards one another) to compress or deform the object.
A force is needed to move an object.
It goes further because as the band stretches, more force is built up on it. When you let go of it, the force suddenly releases, and because the more you stretch it, the more force is on it. Thus, the further you stretch the further you launch.
The force exerted by the weight exceeds the force of the elasticity that normally keeps the elastic band in a contracted state. As the band stretches, the resistance increases to the point where it is equal to the force exerted by the weight.
It may loose its elastic nature.