tic energy 15.The energy changes that take place when a stone falls freely from rest to the ground can be orderly arranged as A. Kinetic energy → Potential energy B. Sound energy → Potential energy C. Potential energy → Sound energy D. Potential energy 16.A ductile material is that which → Sound energy → Heat. → Kinetic energy → Heat. → Kinetic energy → Heat. → Kinetic energy → Heat energy → Sound.