Category: Everyday Science | Last updated: 2026-09-18

According to Newton's First Law of Motion, which property of an object describes its resistance to changes in its state of motion (i.e., its velocity)?

A) Momentum
B) Inertia
C) Velocity
D) Acceleration

Explanation

Newton's First Law, also known as the Law of Inertia, states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. Inertia is the property that quantifies this resistance to change in motion.

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