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Difference between mass and weight

Differentiation Mass Weight
Definition It is the measure of the amount of matter in a body. It is the measure of the amount of force acting on a mass due to acceleration due to gravity.
Denotation Mass is denoted by “M”. Weight is denoted by “W”.
Formula Mass = volume × density Weight = mass × acceleration due to gravity
Quantity Type Mass is a base quantity. Weight is a derived quantity.
Vector/ scalar quantity Mass only has magnitude, and so, it is a scalar quantity. Weight has both magnitude and direction (towards the centre of gravity), so it is a vector quantity.
SI unit The SI unit of mass is Kilogram (Kg). The SI unit of weight is Newton (N).
Dependency on gravity Mass does not depend upon gravity and is constant everywhere. Weight depends on gravity, so it varies from place to place.
Value Mass can never be zero. Weight can be zero where there is no gravity.
Measuring Instrument Mass can be easily measured using any ordinary balance like beam balance, lever balance, pan balance, etc. Weight can be measured by a spring balance.

 

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