+**Inertia** is the fundamental property of [Mass](/wiki/mass) that resists any change in its state of [Motion](/wiki/motion). It is the natural tendency of an object to remain at rest or to continue in uniform motion in a straight line unless acted upon by an external force.
+## See also
+- [Force](/wiki/force)
+- [Newton's Laws](/wiki/newton's_laws)
+- [Momentum](/wiki/momentum)