The mass of an object is a quantitative measure of it's
Correct answer: C. Inertia
- A. Force
- B. Velocity
- C. Inertia
- D. All of them
Explanation
The correct answer is Inertia. Mass is a measure of an object's inertia, which is its tendency to resist changes to its motion. The greater the mass, the greater the inertia. This means more force is required to change the motion of an object with more mass. Force is not a measure of mass; it is an influence that can change the motion of an object. Velocity is the speed of something in a given direction and is unrelated to mass. The option All of them is incorrect because only inertia is a measure of mass.
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About Force and Motion
Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
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