Grade 12th passMechanics
Why time is neither scalar no a vector quantity as other quantities
1 Answer
Arun
In physics, scalar quantities are defined to be ones which have magnitude only, and no direction, where "direction" in this context means a direction in three dimensional space. Time clearly has no such direction.However, in slightly more advanced physics, where special relativity is applied "scalar" is used as a shorthand for "Lorentz scalar" - a quantity which does not change under Lorentz transformations. Time most certainly does change under Lorentz transformations, so is not a scalar in this context.So time won`t come under scalar as well as vector.
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