Inertia of an object is quantitative measure of its__________________?
Correct answer: C. mass
- A. volume
- B. density
- C. mass
- D. temperature
Explanation
Inertia is the resistance of an object to any change in its state of motion, and this resistance increases with mass. Thus mass is the quantitative measure of inertia. Volume or density may affect other properties, but neither directly measures an object's resistance to acceleration.
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About Newton's Laws of Motion
Newton’s laws explain inertia, the relation between net force and acceleration, and action-reaction pairs. Questions involve free-body diagrams, balanced and unbalanced forces, F = ma, force as the rate of change of momentum, and identifying genuine third-law pairs, which act on different bodies.
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