An acorn rolls off a roof and falls to the ground. Which statement best describes the change in energy?(1 point)
The acorn's potential energy is changed to mechanical energy.
The acorn's potential energy is changed to mechanical energy.
The acorn's potential energy and kinetic energy increase and decrease together.
The acorn's potential energy and kinetic energy increase and decrease together.
The acorn's potential energy decreases as its kinetic energy increases.
The acorn's potential energy decreases as its kinetic energy increases.
The acorn's kinetic energy increases until it hits the ground.