Physics for IGCSE & O level - Forces And Motion (Section 6 - No. 29)
Which statements are true about inertia?
Inertia is the tendency of an object to resist changes in its motion.
Inertia is directly proportional to an object's mass.
Inertia is a force.
All objects have inertia.
Erläuterung
Inertia is the resistance to change and increases with mass. All objects have this property.