Question

take a look

1. describe how did the

last ball in the figure on the
right gain energy?

a particle can pass energy to the particle next to it. the particle receiving
the energy will vibrate like the first particle. this is shown by the newtons
pendulum above. when the moving steel ball collides with another steel
ball, its energy is given to that ball. notice that the first ball stops, but its
energy is passed on to a third ball.

waves that require a medium are called mechanical
waves. mechanical waves include sound waves, ocean
waves, and earthquake waves. for example, consider a
radio inside a jar. if all of the air from inside the jar is
removed to create a vacuum, the radio can not be heard.

waves can transfer energy without a medium

Explanation:

The first ball has kinetic energy. When it collides with the second ball, energy is transferred. This transfer continues through the balls until the last ball gains energy.

Answer:

The first ball transfers its energy through a series of collisions with the other balls, and finally, the last ball gains energy.