What is the principle of inertia?
Law of inertia, also called Newton’s first law, postulate in physics that, if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.
What gives the measure of inertia?
There are two numerical measures of the inertia of a body: its mass, which governs its resistance to the action of a force, and its moment of inertia about a specified axis, which measures its resistance to the action of a torque about the same axis. See Newton’s laws of motion.
What is body inertia?
The tendency of a body to resist any change in its motion (speed or direction) – in other words, to resist any change in its acceleration – is called its ‘inertia’. Mass can be thought of as a measure of a body’s inertia.
How do you describe inertia?
Inertia is the resistance of any physical object to any change in its velocity. This includes changes to the object’s speed, or direction of motion. Inertia comes from the Latin word, iners, meaning idle, sluggish.
Can you gain inertia?
As you accelerate, your velocity increases and therefore mass will increase. The increase in mass will bring about an opposite force. The greater the mass, the greater the inertia. The answer to your question is ‘yes’ if we interpret inertia as p=mv, and no if we interpret it as F=ma.
What happens inertia?
Answer. Inertia is the property of mass that resists change. Therefore, it is safe to say that as the mass of an object increases so does its inertia. If you increase either mass orvelocity, the momentum of the object increases proportionally.
How will the inertia of a body be affected when force is doubled?
Answer: There would be no effect on the inertia of the following as inertia is the measure of the mass of an object and mass of an object cannot be changed.
What is the effect of mass on the inertia of a body?
The tendency of an object to resist changes in its state of motion varies with mass. Mass is that quantity that is solely dependent upon the inertia of an object. The more inertia that an object has, the more mass that it has. A more massive object has a greater tendency to resist changes in its state of motion.
What is the best definition of inertia?
1a : a property of matter by which it remains at rest or in uniform motion in the same straight line unless acted upon by some external force. b : an analogous property of other physical quantities (such as electricity) 2 : indisposition to motion, exertion, or change : inertness.