1.

Which action best demonstrates the transformation of mechanical energy to heat energy and sound energy?1)stretching a string 2)squeezing a sponge ball 3)throwing a ball upwards in air 4)striking a hammer on a nail

Answer»

Answer:

4. Striking a hammer on a nail

Explanation:

A tremendous amount of FORCE is applied over a SMALL area to generate very high stresses that are in the plastic zone.

a high amount of thermal energy is generated and the LOCALISED disturbance of the air generates audible SOUND



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