Define energy, write it's SI unit and dimensional formula
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energy is a power with which we can move , or doing hard things
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ENERGY:
In physics, energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object. Energy is a conserved quantity; the law of conservation of energy states that energy can be converted in form, but not created or destroyed.
SI UNIT OF ENERGY:
Joule
DIMENSIONAL FORMULA:
Quantity Dimension Formula
energy [M L2 T-2] N·m
quantity of heat [M L2 T-2] N·m
work [M L2 T-2] N.m
power [M L2 T-3] Js- 1
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