PLEASE ANSWER MY QUESTION IN ABOUT 200 WORDS FAST Q.How is the energy useful to us? Cite examples in points I WILL MARK AS BRAINLIEST NO INAPPROPRIATE ANSWER OR ELSE I MAY REPORT.
Answers
Answer:
Energy in an abstract definition is the „ability to change the state of a (physical) system“. Hence, without energy any system would be completely static and nothing would move or change.
Explanation:
Energy can be converted into different forms or „manifestations“: light, mass, movement, heat (which is ultimately movement), but is can never be destroyed or generated if one considers a closed physical system. Without the energy stored in the chemical bonds of oxides of different kinds, fire would not burn and would not create heat. Without the nuclear binding energy released in the process of nuclear fusion and fission there would be no sun and no nuclear powerplant (and bomb). The energy released in the solar fusion reaches us in large parts as light, which is converted by plants to chemical binding energy again — they create sugar molecules with the help of solar light, etc. Even in the process of breathing and digesting the carbon in the nutrition we consume is oxidized („burned“) in our cells in an exothermal process and creates energy (heat) to make our cells work; this is the reason why you get hot when you exercise: you burn more carbon using oxygen in an exothermal reaction to CO2 in your cells.
So — energy is the ultimate driver of life and everything.