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.
There are many examples in our daily life of conservation of energy. The energy is converted into various forms but it is constant for a particular system. When a system undergoes some changes then the energy of the system remains constant. It is only converted into another form of energy. Some examples of conservation of energy involve the production of electricity from water. The potential energy of water is converted into kinetic energy when it falls from the sky.