Hi, I wonder why the energy that waves transfer is only dependent on amplitude? E.g. in this animation: http://lifecdn.dailyburn.com/life/wp-content/uploads/2015/02/2.Alternating-Slam4.gif The waves on the rope transfer energy to the items on the right side. Wouldn't there be transferred more energy if the man produced faster waves, but with same amplitude? Or waves transfer energy to the boat on water (by moving the boat up and down). Even if the amplitude of the water waves was the same, with faster waves, the boat would move more up and down than if the waves were slower. So wouldn't the waves transfer more energy to the boat if the speed of the waves was faster, even when the amplitude is same? (btw, I'm very very new to physics).