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.
In this process, the chemical energy is transformed into mechanical energy, which you use to move, and which we'll cover in more detail in a moment. It also transforms it into thermal energy, which is created through the metabolic processes in your body to generate heat.any of these energy transformations can be useful. For instance, converting mechanical energy from a waterfall into electrical energy or converting nuclear energy to electrical energy to power a city is very useful. Some of these can be harmful, however, such as releasing nuclear energy to destroy a small city.