Sample 1Easy
The inertia of a body, its resistance to a change in its state of rest or uniform motion, is measured by its
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The answer is A.
Mass is a measure of the inertia of a body: the greater the mass, the greater the force needed to produce a given change in its motion.
- B.
Velocity describes the state of motion, not the resistance to changing it.
- C.
Shape does not decide how hard a body is to accelerate.
- D.
Two bodies of equal volume can have very different masses and so different inertia.
NCERT: Class 11 Physics, Chapter 4 (Laws of Motion), Newton's First Law of Motion