What Is A "Scalar" Quantity? Please Give Examples.

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Aun Jafery Profile
Aun Jafery answered
In science and mathematics any quantity that has magnitude but lacks direction is referred to as a scalar quantity. Hence a Scalar quantity has no direction but has a sign and magnitude. It is distinct from Vector quantity which has both magnitude and direction. In Physics it refers to any physical quantity that one number can describe completely. Examples of Scalar quantities are length, area, speed, vague, density, mass, temperature, energy, pressure, work, entropy and power. Vector quantities on the other hand include displacement, velocity, direction, force, momentum, weight, drag, thrust, acceleration and lift. Scalar quantities are simpler to compare as they have just magnitude to compare. This makes dealing with scalar quantities easier to deal with and calculate.
Anonymous Profile
Anonymous answered
The quantity which require magnitude for their representation is called as scalar quantity
Anonymous Profile
Anonymous answered
A quantity that magnitude but no direction i.e. Length,area and distance
amber Jhon Profile
amber Jhon answered
In physics there are two types of quantities either vector quantities or the scalar quantities. Scalar quantities are those, which can be measured only through their magnitude and unit but no direction is given. For example, mass of a body is scalar quantity and if the mass of a body is 10 kg then 10 is the magnitude and unit is kg however, mass has no direction. On the other hand, weight of the body is a vector quantity and its direction is towards the point of gravity.
Anonymous Profile
Anonymous answered
A physical  measurement that does not contain directional information.
Anonymous Profile
Anonymous answered
Scalar Quantity is a quantity that involves only size, but not direction. Examples are Time and speed

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