True or false:

The higher a ball is dropped from, the greater kinetic energy it will have when it hits the ground.

1 answer

True.

The kinetic energy of a ball just before it hits the ground is related to its height (among other factors). When an object is dropped from a height, it converts potential energy (due to its height) into kinetic energy as it falls. The higher the drop, the more potential energy it has, which translates into greater kinetic energy just before impact, assuming no energy loss from air resistance or other factors. The relationship can be described by the equation for gravitational potential energy (PE = mgh) and kinetic energy (KE = 0.5mv²), where "m" is mass, "g" is the acceleration due to gravity, and "h" is the height. Thus, a ball dropped from a greater height will indeed have greater kinetic energy upon hitting the ground.