what is the cause of inertia?

Answer 1

Inertia, the property of matter that causes it to resist any change of its motion in either direction or speed. This property is accurately described by the first law of motion of the English scientist Sir Isaac Newton: An object at rest tends to remain at rest, and an object in motion tends to continue in motion in a straight line unless acted upon by an outside force. For example, passengers in an accelerating automobile feel the force of the seat against their backs overcoming their inertia so as to increase their velocity. As the car decelerates, the passengers tend to continue in motion and lurch forward. If the car turns a corner, then a package on the car seat will slide across the seat as the inertia of the package causes it to continue moving in a straight line.

Any body spinning on its axis, such as a flywheel, exhibits rotational inertia, a resistance to change of its rotational speed. To change the rate of rotation of an object by a certain amount, a relatively large force is required for an object with a large rotational inertia, and a relatively small force is required for an object with a small rotational inertia. Flywheels, which are attached to the crankshaft in automobile engines, have a large rotational inertia. The engine delivers power in surges; the large rotational inertia of the flywheel absorbs these surges and keeps the engine delivering power smoothly.

An object's inertia is determined by its mass. Newton's second law states that a force acting on an object is equal to the mass of the object multiplied by the acceleration the object undergoes. Thus, if a force causes an object to accelerate at a certain rate, then a stronger force must be applied to make a more massive object accelerate at the same rate; the more massive object has a larger amount of inertia that must be overcome. For example, if a bowling ball and a baseball are accelerated so that they end up rolling at the same speed, then a larger force must have been applied to the bowling ball, since it has more inertia.

Answer 2

When dealing with the concept of Inertia (Newton's First Law of motion), is there an explanation of why this is so or do we accept it for what it is based on observations and experiments? While realizing that asking for more and more underlying reasons can be recursive and has to stop somewhere, I was just wondering if Inertia was to be taken as a given

Answer 3

Inertia: A physique at relax has a tendency to stay at relax, a physique in action has a tendency to stay in action. actually, while in action, the action has a tendency to stay in a geodesic direction (a immediately line in typical situations). As consequence of the tendency, a internet tension could desire to be utilized to get a physique moving or substitute a physique's action (velocity and direction). that could be defined in math communicate using fact the impulse: dP = F dT = m dV; the place dV is the substitute in velocity (velocity and/or direction). F is the internet tension appearing for dT volume of time. m is the mass, a level of inertia. dP represents a metamorphosis in momentum. while dV = V - U, the place V is the main suitable velocity and U is the preliminary, beginning a mass moving from U = 0 as much as V very final velocity (decrease fee direction), we would have m dV = m (V - U) = m V = F dT so as that F = m V/dT = m A, the place A = dV/dT = V/dT is the elementary acceleration over the era dT. And, voila, you have Newton's 2d, the F = m A regulation. with out inertia, there may be no F = mA. And with out F = mA, there may be no action/reaction of Newt's 0.33 regulation. So inertia (mass) and Newt's First regulation are the significant to all 3 of Newton's rules of action.

Answer 4

Inertia is the tendency of a body to maintain its state of rest or uniform motion unless acted upon by an external force Inertia

The principle of inertia is one of the fundamental laws of classical physics which are used to describe the motion of matter and how it is affected by applied forces. The concept of inertia is today most commonly defined using Isaac Newton's First Law of Motion, which states:

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. [Cohen & Whitman 1999 translation]

The description of inertia presented by Newton's law is still considered the standard for classical physics. However, it has also been refined and expanded over time to reflect developments in understanding of relativity and quantum physics which have led to somewhat different (and more mathematical) interpretations in some of those fields.

It should be emphasised that 'inertia' is a scientific principle, and thus not quantifiable. In common usage, however, people may also use the term "inertia" to refer qualitatively to an object's "amount of resistance to change in velocity" (which is determined by its mass), and sometimes its momentum, depending on context (e.g. "this object has a lot of inertia"). The term "inertia" is more properly understood as a shorthand for "the principle of inertia as described by Newton in his First Law".

Answer 5

The concept of inertia is due to the continuation of movement of a mass, and all the while have no visible means as to what is moving it. The principle is found in a speeding spaceship that is headed toward one of the outer planets. Once it begins moving, there is no necessity for further energy to be expended - it just keeps going on and on.

What is the reason for the continual movement? There is a frequency trilogy that explains why inertia (kinetic energy) remains in a moving mass, and why it exists.

hf = E, is that form of energy that describes the frequency of a single photon (electromagnetic energy). The greater the frequency in a given length, the greater the energy involved.

hf = mk, describes what happens in a moving mass. Because mass is composed of electromagnetic energy, mass comes under the same laws of energy density as hf = E. As a mass moves in a partiular direction, the overall frequency of that mass increases in the direction of movement. It is for this reason that mass "shrinks" as it moves. The contraction of the mass demonstrates there are more lines of frequency "hf" in direction of movement, thus greater energy. When a mass slows down, the lines decrease in frequency density "hf" and become longer, thus the mass also lengthens.

Were a person to know how to do it, they could fly through space with no assistance. All that would have to be done is to have the total frequency of their body to increase in one direction. A person could make a flying carpet, if they could change the frequency of the carpet so that it all existed in one particular direction.

c = hf, is that of a particular graviton. There is a writing at http://360.yahoo.com/noddarc entitled "What is the Graviton?" if you wish to examine this a little further.

Answer 6

Inertia is lack of movement. Inertia ceases to exist when a force is applied to the object and the object starts to move. Inertia in normal english usage is lack of activity which can be due to lack of energy,
feverish conditions or when a person is under sedation

Answer 7

Inertia is instigated when you set a body in motion. It will continue to move in the direction set until an opposing force stops it. The energy of a moving body is called inertia.

Answer 8

Mass is the measurement of inertia and not the cause. Scientist speculate that the cause of inertia is due space's resistance to warping. If you want to learn more about this read the Wikipedia article.
http://en.wikipedia.org/wiki/Inertia

Answer 9

Newton's First Law = Inertia

- An object’s inertia causes it to continue moving the way it is moving unless it is acted upon by an (unbalanced) force to change its motion.

"Every object remains in a state of rest or of uniform motion in a straight line unless acted upon by an outside force."

Answer 10

the cause for inertia is the mass in motion..or the mass possessing elasticity can also cause inertia