inertia
in-er-sha
amount of resistance to change in velocity
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Inertia. Also described in Newton's First law of Motion.
It is pronounced as "biss-feh-nawl."
Inertia is the property of matter that resists changes in motion. The greater the mass of an object, the greater its inertia. Inertia is what keeps objects at rest and in motion unless acted upon by an external force.
Force does not affect inertia in general. Inertia can basically be identified with the mass.
The SI unit of inertia is the kilogram meter squared (kg m^2).