Which action best demonstrates the transformation of mechanical energy

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» er: 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

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»

er:

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