"changes involve energy",Explain it
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A change can be defined as an alteration in the physical and chemical properties of matter due to the effect of some kind of energy. E.g. cooking, digestion of food.
sukhwindersingh00456:
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there are 2 types of changes
physical
chemical
when u r pushing a vehicle then u r using ur energy and the vehicle moves therefore changes involve energy
physical
chemical
when u r pushing a vehicle then u r using ur energy and the vehicle moves therefore changes involve energy
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