When ball is in the hand, it possesses internal energy. We give it kinetic energy when we throw it up and its kinetic energy decreases as it gains height.The kinetic energy turns to gravitational potential energy which reaches its maximum when it reaches its highest point. At that point the ball stops and then it falls.Its gravitational energy turns to kinetic energy as it falls. When it falls, its some energy turns to heat energy.When the balls hits the ground sound energy is produced and heat is given. The final energy which the body possesses is internal energy.