If the skateboard continue going back and forth on the half-pipe, she’ll eventually come to a stop at the bottom automatically. Explain why, in terms of her energy.

The objects do not reach terminal velocity         there is not enough time from the time the object falls from when it hits the ground to achieve terminal velocity. an object must be placed higher to achieve terminal velocity in order to be in free fall.

Sound energy is produced when an object vibrates. examples are 1- a balloon popping2-a whistle3- a waterfall