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.
By Anne Marie Helmenstine, Ph.D. Energy is defined as the ability to do work. Energy comes in various forms. Here are 5 main types of energy and examples of them. 1  mechanical energy. 2  Mechanical energy is energy that results from movement or the location of an object.