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  1. INERTIA Definition & Meaning - Merriam-Webster

    The meaning of INERTIA is a property of matter by which it remains at rest or in uniform motion in the same straight line unless acted upon by some external force.

  2. Inertia - Wikipedia

    Given this perspective, and borrowing from Kepler, Newton conceived of "inertia" as "the innate force possessed by an object which resists changes in motion", thus defining "inertia" to mean the cause …

  3. INERTIA Definition & Meaning | Dictionary.com

    INERTIA definition: inertness, especially with regard to effort, motion, action, and the like; inactivity; sluggishness. See examples of inertia used in a sentence.

  4. Inertia | Definition & Facts | Britannica

    Jan 16, 2026 · Inertia, property of a body by virtue of which it opposes any agency that attempts to put it in motion or, if it is moving, to change the magnitude or direction of its velocity. It is a passive …

  5. INERTIA | definition in the Cambridge English Dictionary

    Inertia is the force that causes something moving to tend to continue moving, and that causes something not moving to tend to continue not to move. The film industry is in a state of gender inertia. Those …

  6. Inertia - Physics Book

    Dec 3, 2024 · It is closely tied to Newton's First Law of Motion, often called the Law of Inertia, which states that an object will remain at rest or in uniform motion unless acted upon by an external force.

  7. What is Inertia? Definition and Examples - Basic-mathematics.com

    Also known as Newton's first law of motion or law of inertia, Newton restated Galileo's idea. The spinning top in the video will keep spinning if there was no friction. Below is what Newton said in …

  8. Inertia and Mass - The Physics Classroom

    Inertia describes the relative amount of resistance to change that an object possesses. The greater the mass the object possesses, the more inertia that it has, and the greater its tendency to not …

  9. What is inertia? | New Scientist

    Simply put, physical objects will resist a change in their state of motion. This is called inertia.

  10. What Is Inertia? A Simple Guide to Understanding Motion

    Feb 7, 2025 · Inertia is the tendency of an object to resist changes in its state of motion. That means if an object is at rest, it will stay at rest ...