Definition:Mass

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Definition

The mass of a body is a measure of how much matter it contains.

Mass is equivalent to inertia.

Mass also determines the degree to which a body creates or is affected by a gravitational field.

It is a scalar quantity.


Symbol

The usual symbol used to denote the mass of a body is $m$.


Dimension

Mass is one of the fundamental dimensions of physics.

In dimensional analysis it is assigned the symbol $\mathsf M$.


Units

The units of measurement of mass are as follows:


Thus:

$1 \ \mathrm {kg} = 10^3 \ \mathrm g$
$1 \ \mathrm {lb} = 0.453 \, 592 \, 37 \ \mathrm{kg}$


Sources