Question

to break a sheet of metal, a machine will repeatedly bend an aluminum sheet back and forth many times. You touch the metal sheet and noticed the aluminum was getting warm where where it was bending. . What type of energy transformation occurs when the metal is bent back and forth?

A. thermal energy to mechanical energy
b.mechanical energy to thermal
c.chemical energy to thermal energy
d.radiant energy to thermal ​

Answer 1

The energy transformation that occurs when the metal is bent back and forth is mechanical energy to thermal energy.

The law of conservation of energy states that energy can neither be created nor destroyed but can be transformed from one form to another.

As the machine bends the aluminum sheet back and forth, it creates mechanical energy due to the movement of this metal sheet and the movement of this metal sheet will generate heat which consists of thermal energy.

Thus, we can conclude that the energy transformation that occurs when the metal is bent back and forth is mechanical energy to thermal energy.

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