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.
â¢ In energy transformations, some energy is always lost to the environment as thermal energy. Examples of energy transformations and their uses: Â· A television changes electrical energy into sound and light energy. Â· A toaster changes electrical energy into thermal energy and light.