Louisa is playing pool with a friend from school. She strikes the cue ball and watches as it travels across the table and impacts another pool ball. What happens to the energy as one pool ball strikes another?
Some energy is transferred to the other ball, and some energy is released as sound.
Some energy is transferred to the felt on the table, and some energy changes to thermal energy.
Some energy is transferred to the other ball, and some energy is destroyed.
Some energy increases as the electrons in one ball collide with the electrons in the other ball.

Option A

Explanation:

As we all know, energy can never be created . Also it can never be destroyed. However, it can only be changed from one form to the other. In this case, when a pool ball is striked by a stick, the kinetic energy of stick is transferred to the ball along with release of sound. Sound is just another form of energy.  

Now, when this ball strikes other balls, the same process is repeated i.e the ball strikes another ball and passes on its kinetic energy along with release of sound energy. Every time sound is released, the amount of kinetic energy transferring from one body to other reduces.  

Option A is correct

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