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Can you visualize how a car reaches high speeds an dhow a person scales high cliffs? |
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Answer» Solution : A car REACHING high speeds acquires knetic energy and a person scaling high cliffs acquires potential energy. In the case of car, the source of K.E. is petrol`//` dieseland OXYGEN from air. In case of humans, the source of P.E. is food and oxygen. In both the cases fuel and oxygen are combined chemically, and the process is called combustion or BURNING. We MAY visualize the combustion process as removing some of the energy stored in th ebonds between the atoms. This energy is called chemical energy. which is essentially a FORM of otential energy as it depends on the position of atoms. Thus K.E. of car and P.E. of person, both are coming from chemical energy`//`potential energy stored in th ebonds between the atoms of fuel and oxygen. |
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