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## inertia

inertia (Ĭnûr´shə), in physics, the resistance of a body to any alteration in its state of motion, i.e., the resistance of a body at rest to being set in motion or of a body in motion to any change of speed or change in direction of motion. Inertia is a property common to all matter. This property was first observed by Galileo and restated by Newton as his first law of motion, sometimes called the law of inertia. Newton's second law of motion states that the external force required to affect the motion of a body is proportional to that acceleration. The constant of proportionality is known as the mass, which is the numerical value of the inertia; the greater the inertia of a body, the less is its acceleration for a given applied force.

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"inertia." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 15 Dec. 2017 <http://www.encyclopedia.com>.

"inertia." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (December 15, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/inertia

"inertia." The Columbia Encyclopedia, 6th ed.. . Retrieved December 15, 2017 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/inertia

## inertia

in·er·tia / iˈnərshə/ • n. 1. a tendency to do nothing or to remain unchanged: the bureaucratic inertia of government. 2. Physics a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force.See also moment of inertia. ∎  resistance to change in some other physical property: the thermal inertia of the oceans will delay the full rise in temperature for a few decades. DERIVATIVES: in·er·tia·less adj.

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"inertia." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 15 Dec. 2017 <http://www.encyclopedia.com>.

"inertia." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (December 15, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/inertia-0

"inertia." The Oxford Pocket Dictionary of Current English. . Retrieved December 15, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/inertia-0

## inertia

inertia (in-er-shă) n. (in physiology) sluggishness or absence of activity in certain smooth muscles. uterine i. inertia of the muscular wall of the uterus during labour, making the process excessively long. It may be present from the start of labour or it may develop because of exhaustion following strong contractions.

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"inertia." A Dictionary of Nursing. . Encyclopedia.com. 15 Dec. 2017 <http://www.encyclopedia.com>.

"inertia." A Dictionary of Nursing. . Encyclopedia.com. (December 15, 2017). http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/inertia

"inertia." A Dictionary of Nursing. . Retrieved December 15, 2017 from Encyclopedia.com: http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/inertia

## inertia

inertia Property possessed by all matter that is a measure of the way an object resists changes to its state of motion. Isaac Newton formulated the first law of motion, sometimes called the law of inertia, stating that a body will remain at rest or in uniform motion unless acted upon by external forces.

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"inertia." World Encyclopedia. . Encyclopedia.com. 15 Dec. 2017 <http://www.encyclopedia.com>.

"inertia." World Encyclopedia. . Encyclopedia.com. (December 15, 2017). http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/inertia

"inertia." World Encyclopedia. . Retrieved December 15, 2017 from Encyclopedia.com: http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/inertia

## inertia

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