Scientific definition of inertia

Answer: Inertia is the resistance of the object to any change in its motion, including a change in direction.

By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica.Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. When a vehicle stops, you tend to jerk forward before coming to a complete stop. Copyright © 2011. Inertia is the inherent property of a body that makes it oppose any force that would cause a change in its motion. 1. Inertia will continue unless the object meets some external force.

Facts About Inertia.

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Inertia is a passive property and does not enable a body to do anything except oppose such active agents as forces and torques.

Inertia is the name for the tendency of an object in motion to remain in motion, or an object at rest to remain at rest unless acted upon by a force.

…by asserting the principle of inertia: in the absence of external forces, a body has zero acceleration; that is, a motionless body remains at rest, and a moving body travels with constant velocity.

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Let's say the wrestler on the left has a mass of 136 kilograms, and the boy on the right has a mass of 30 kilograms (scientists measure mass in kilograms). A body at rest and a body in motion both oppose forces that might cause acceleration. inertia.

Which person in our example would be easier to move? Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox.Articles from Britannica Encyclopedias for elementary and high school students.

Isaac Newton’s first law of motion states that—unless the body is acted upon by some force—a body in motion tends to remain in motion and a body at rest tends to remain at rest.

Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....Isaac Newton’s first law of motion states that—unless the body is acted upon by some force—a body in motion tends to remain in motion and... Our editors will review what you’ve submitted and determine whether to revise the article.There are two numerical measures of the inertia of a body: its 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.

Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. In the same way, …

This concept was quantified in Newton's First Law of Motion.

Get kids back-to-school ready with Expedition: Learn! [ ĭ-nûr ′shə ] The resistance of a body to changes in its momentum.

Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012The American Heritage® Stedman's Medical Dictionary All rights reserved.The New Dictionary of Cultural Literacy, Third Edition All rights reserved.inertness, especially with regard to effort, motion, action, and the like; inactivity; sluggishness.the property of matter by which it retains its state of rest or its velocity along a straight line so long as it is not acted upon by an external force.lack of activity, especially as applied to a uterus during childbirth when its contractions have decreased or stopped.the state of being inert; disinclination to move or actthe tendency of a body to preserve its state of rest or uniform motion unless acted upon by an external forcean analogous property of other physical quantities that resist changeThe tendency of a body to resist acceleration; the tendency of a body at rest to remain at rest or of a body in motion to stay in motion in a straight line unless acted on by an outside force.Resistance or disinclination to motion, action, or change.The resistance of a body to changes in its momentum. Physics The tendency of a body at rest to remain at rest or of a body in straight line motion to stay in motion in a straight line unless acted on by an outside force; the resistance of a body to changes in momentum. Published by Houghton Mifflin Company.The American Heritage® Science Dictionary The answer, to the surprise of some then and probably the captains of The organism acquires a growing immobility, and finally exists in a state of entire intellectual helplessness and It is to be feared that the latter, far from stimulating mental life, are conducive to “Epidemic” vs. “Pandemic” vs. “Endemic”: What Do These Terms Mean?All Of These Words Are Offensive (But Only Sometimes)Absentee Ballot vs. Mail-In Ballot: Is There A Difference?“Unalienable” vs. “Inalienable”: Is There A Difference?“Affect” vs. “Effect”: Use The Correct Word Every TimeIt’d be a real faux pas to miss this quiz on the words from August 3–9, 2020!to waver in mind or opinion; be indecisive or irresolute.1705–15;

The more inertia an object has, the less the object will change its motion when it meets another force.

Newton’s second law states that force equals mass times acceleration… The word inertia came from the Latin word iners, which means idle or lazy and was first used by Johannes Kepler.

Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020Collins English Dictionary - Complete & Unabridged 2012 Digital Edition Resistance or disinclination to motion, action, or change: an entrenched bureaucracy's inertia. Common sense tells you that the boy would be easier to move, or less resistant to inertia.

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