When you stretch a Slinky spring a moderate amount and then release it, it retur

Question

When you stretch a Slinky spring a moderate amount and then release it, it returns to its original state, and all the potential energy stored by the stretching is converted to another form. If you stretch too much, however, you can permanently bend the spring. In this case, the stored potential energy goes into deforming metal (by breaking and re-forming chemical bonds) and heating it up.

Part A

If you use pliers to carefully straighten the bent spring so that it looks the same as before, do you expect to recover the energy dissipated when you bent it?

Explanation / Answer

No , when the metal spring is deformed while stretching the spring
the energy is lost in the form of heat to the surrounding.

when we use pliers to straighten the bent spring , we have to apply energy to straighten the bent spring .

we will not be able to recover any energy

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