1 A farewell or final appearance, action, or work. 2  The beautiful legendary song sung only once by a swan in its lifetime, as it is dying.
A person converts chemical potential energy into kinetic/mechanical energy when he walks. The chemical potential energy usually takes the form of adenine triphosphate (ATP) st â¦ ored in the body.
Mechanical Energy - Mechanical energy is the sum of the kinetic and potential energy of a body. Light - Photons are a form of energy. Electrical Energy - This is energy from the movement of charged particles, such as protons, electrons, or ions.