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How do you visualize the moment of inertia?
You cannot visualize moment of inertia, but it gives an indication about how easy it is to move the rotating body and about the mass distribution in the body about the rotational axis. If you change the rotational axis, then there will be a different Moment of Inertia.
What does moment Mean in moment of inertia?
moment of inertia, in physics, quantitative measure of the rotational inertia of a body—i.e., the opposition that the body exhibits to having its speed of rotation about an axis altered by the application of a torque (turning force). The axis may be internal or external and may or may not be fixed.
What does the moment of inertia describe quizlet?
Moment of Inertia. – Symbol: I. – A measure of a body’s resistance to angular acceleration, equal to the product of the mass of the body and the square of its distance from the axis of rotation. -angular equivalent to mass. -explains how the mass is distributed relative to the axis of rotation.
What is the best description of rotational inertia?
Rotational Inertia. When we spoke about mass of an object undergoing only translation motion, we defined mass as the inertia of the object. Inertia we said is the ability of an object to resist change in motion. The higher the inertia of the object is, the more likely that object will be able to resist change.
What does the rotational inertia describe *?
Rotational inertia is a property of any object which can be rotated. It is a scalar value which tells us how difficult it is to change the rotational velocity of the object around a given rotational axis. Rotational inertia plays a similar role in rotational mechanics to mass in linear mechanics.
How do you explain moment of inertia to a child?
It is a rotating body’s resistance to angular acceleration or deceleration, equal to the product of the mass and the square of its perpendicular distance from the axis of rotation.