inertia


Also found in: Dictionary, Thesaurus, Medical, Legal, Wikipedia.

inertia

(ĭnûr`shə), in physics, the resistance of a body to any alteration in its state of motionmotion,
the change of position of one body with respect to another. The rate of change is the speed of the body. If the direction of motion is also given, then the velocity of the body is determined; velocity is a vector quantity, having both magnitude and direction, while speed
..... Click the link for more information.
, 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 massmass,
in physics, the quantity of matter in a body regardless of its volume or of any forces acting on it. The term should not be confused with weight, which is the measure of the force of gravity (see gravitation) acting on a body.
..... Click the link for more information.
, 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.

Inertia

That property of matter which manifests itself as a resistance to any change in the motion of a body. Thus when no external force is acting, a body at rest remains at rest and a body in motion continues moving in a straight line with a uniform speed (Newton's first law of motion). The mass of a body is a measure of its inertia. See Mass

inertia

(i-ner -shă) The property of a body by which it resists change in its velocity. It is inertia that causes a body to continue in a state of rest or of uniform motion in a straight line (see Newton's laws of motion). The force required to give a specific acceleration to a body depends directly on its inertia. It is through the property of inertia that the concept of the mass of a body (its inertial mass) arises.

Inertia

 

in mechanics, a property of material bodies that is reflected in the first and second laws of mechanics. When there are no external influences (forces) acting on a body or when they are mutually balanced, inertia is manifested in the fact that the body maintains unchanged its state of motion or rest with respect to the so-called inertial frame of reference. If, however, an unbalanced system of forces acts on the body, then the property of inertia is manifested in the fact that a change in the body’s state of rest or motion, that is, a change in the velocities of its points, takes place gradually and not instantaneously. Here, the greater the inertia of the body the more slowly the motion changes. The mass of a body is the measure of its inertia.

The term “inertia” is still used with respect to various instruments; the inertia of an instrument is its property of displaying readings with a certain delay.

S. M. TARG

inertia

[i′nər·shə]
(mechanics)
That property of matter which manifests itself as a resistance to any change in the momentum of a body.
(medicine)
Sluggishness, especially of muscular activity.

inertia

Physics
a. the tendency of a body to preserve its state of rest or uniform motion unless acted upon by an external force
b. an analogous property of other physical quantities that resist change
References in periodicals archive ?
Inertia in gb is forecast using two distinct elements: The 1st component is determined by summating all the known inertia from the synchronised generation on the gb transmission system.
The identified moment of inertia of the system is substituted into the observer to reduce the errors of the observer model.
negative) inertia index of a graph G , denoted by p(G) resp.
It seems that, in many cases, inertia is merely in the eye of the beholder: whether we think a particular agent or institution is irrational in resisting change depends on whether we think change is rational or desirable.
Win Inertia has designed and equipped the system according to an agreement with the Spanish government's Administrator of Railway Infrastructures.
The primary cause was diagnosed as uterine inertia leading to cervical stenosis.
Where J is the total moment of inertia of the turbine and generator rotor (kg[m.
You don't talk about the inertia of a thrown baseball when it whacks you in the head; you talk about its momentum.
It is worthy noticing that both hydrodynamic pressure as well as inertia effects contributes to the elastic deformation of the connecting-rod bearing.
Benelli's inertia drive system, also referred to as the Montefeltro action, is noted for its simplicity since there are only three moving parts--the bolt body, rotating bolt head and inertia spring.
This article describes a method to measure wheelchair inertia ([I.