Inertia is defined as what?

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Multiple Choice

Inertia is defined as what?

Inertia is the property of matter that resists changes in its motion. An object at rest tends to stay at rest, and a moving object tends to keep moving at the same speed and in the same direction unless a net external force acts on it. The greater the mass, the greater the inertia, so heavier objects are harder to start moving or to stop. Momentum, while related, is a separate concept defined as mass times velocity and describes how much motion an object has, not its resistance to changing motion. Force is what causes a change in motion, and energy is the capacity to do work. So the description that matches inertia is the resistance to changes in motion.

Inertia is the property of matter that resists changes in its motion. An object at rest tends to stay at rest, and a moving object tends to keep moving at the same speed and in the same direction unless a net external force acts on it. The greater the mass, the greater the inertia, so heavier objects are harder to start moving or to stop.

Momentum, while related, is a separate concept defined as mass times velocity and describes how much motion an object has, not its resistance to changing motion. Force is what causes a change in motion, and energy is the capacity to do work. So the description that matches inertia is the resistance to changes in motion.

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