energy
It makes heat when the wood burns.
Chemical energy becomes useful to you when it is converted into a form of energy that your body can use, such as through the process of cellular respiration. This energy is then used to fuel various functions in your body, such as movement, digestion, and brain function.
yes
Free energy
Wood burning is considered a form of chemical energy because the process involves the combustion of organic compounds in wood (mainly cellulose, hemicellulose, and lignin) with oxygen to release heat energy. This reaction breaks down the complex chemical bonds in the wood, releasing stored energy in the form of heat and light.
Chemical energy is transferred to electrical energy! :) :p
chemical potential energy
This would be its chemical potential energy, of course it depends on what other chemical(s) it is reacting with, such as oxygen.
yes
The chemical energy stored in food becomes useful to you when it is converted into adenosine triphosphate (ATP) molecules through cellular respiration in your body's cells. ATP is the energy currency used by your muscles and all other cells for various physiological functions, including muscle contraction.
because if their are no light to our word the word became dark
electrical/chemical to sounds(useful energy) and heat(wasted energy)