Inertia

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Inertia Meaning and Definition in Dictionary

Definitions from Wordnet 2.0


  • a disposition to remain inactive or inert; "he had to overcome his inertia and get back to work"
  • (physics) the tendency of a body to maintain is state of rest or uniform motion unless acted upon by an external force

Definitions from Wiktionary


  • a disposition to remain inactive or inert; "he had to overcome his inertia and get back to work" ,
  • (physics) the tendency of a body to maintain is state of rest or uniform motion unless acted upon by an external force

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Inertia Meaning and Definition in Wikipedia


Inertia is the resistance of an object to any change in its motion, including a change in direction. An object will stay still or keep moving at the same speed and in a straight line, unless it is acted upon by an outside force.

For example, a rubber ball will not start bouncing around unless someone picks it up and throws it. Basically, if an object is not moving, it won't start moving unless something else acts upon it. The same idea can be applied to motion: an object in motion will stay in motion unless some outside, opposing force acts upon it. Inertia is also called Sir Isaac Newton's First Law of Motion. The First Law of Motion says that:

Every body perseveres in its state of being at rest or of moving uniformly straight ahead, except insofar as it is compelled to change its state by forces impressed.



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'Inertia' example sentence in quotations


* All that is necessary to break the spell of inertia and frustration is this Act as if it were impossible to fail. That is the talisman, the formula, the command of right-about-face which turns us from failure towards success. - Dorthea Bragg


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