Question

1. what is inertia?

Explanation:

Inertia is a property of matter described in Physics (a subfield of Natural Science). It is the tendency of an object to resist changes in its state of motion (either rest or uniform motion in a straight line). The more mass an object has, the greater its inertia.

Answer:

Inertia is the tendency of an object to resist a change in its state of motion (including rest or uniform motion in a straight line); it is a property of matter related to mass, described in the subfield of Physics (Natural Science).