jenny is trying to describe a wave. which example would be the best description? a toy car hitting a wall…

jenny is trying to describe a wave. which example would be the best description? a toy car hitting a wall and bouncing back a toy car rear - ending a toy car that then rear - ends another toy car two toy cars driving parallel to each other at the same speed two toy cars driving away from each other at the same speed
Answer
Brief Explanation:
A wave is a transfer of energy. When a toy - car rear - ends another toy - car, energy is transferred from the first car to the second, similar to how a wave transfers energy. The first option is just a collision and bounce back without energy transfer like a wave. The third and fourth options do not involve energy transfer in a wave - like manner.
Answer:
a toy car rear - ending a toy car that then rear - ends another toy car