Physics for IGCSE & O level - Forces And Motion (Section 8 - No. 32)
What is the relationship between mass and inertia?
Mass is unrelated to inertia.
Mass causes inertia.
Inertia causes mass.
Mass is a measure of inertia.
Explication
Inertia is the resistance to change in motion, and mass is a direct measure of inertia.