Moment Of Inertia Essay

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Recommended: Introduction moment of inertia of disk and ring

Abstract Moment of Inertia is the measure of an object’s resistance to changes in the rotation direction. It is the rotational analog of mass for linear motion. The relationship of moment of inertia to angular acceleration is similar to that of the mass to linear acceleration. In the experiment, the scalar form or the mass of moment of inertia was used. The determination of the moment of inertia of a disk and a ring and to compare the moment of inertia of the solid disk rotated at two different axes: at the center and along its diameter are the main objectives of the experiment. After setting-up the equipment, the ring was placed in the disk and the friction mass is determined. Next, the addition of mass in the weight pan and the recording …show more content…

Answers to Questions: The moment of inertia of the disk is greater than the moment of inertia of the ring. The disk has a greater moment of inertia than the ring because the mass of the disk is also greater than that of the ring resulting to greater moment of inertia and from the discussion the mass of the object and its distance from the axis of rotation is directly proportional to that of the moment of inertia. The factors that affect the moment of inertia is simply the mass of the object and the shortest perpendicular distance from the axis of rotation because the mass and the distance is directly proportional to the value of the moment of inertia. The greater the mass and the greater the distance from the axis of rotation or the position from the axis of rotation the greater the value of moment inertia would …show more content…

From the data gathered, the moment of inertia of the disk rotated about the center is greater than that of the disk rotated about its diameter. The main reason to this phenomena is that due to the different axis of rotation, the moment of inertia is affected. The one rotated at its diameter rotates faster than that of the one rotating about the center and this could be due to the mass of the one rotated about an axis very much concentrated or gathered at the center or parallel to that of the axis of rotation that resulted to its faster acceleration. The rotational acceleration, α is inversely proportional to the moment of inertia, I. As the rotational acceleration increases the moment of inertia decreases and as the value of the rotational acceleration decreases the moment of inertia increases or the higher rotational acceleration the smaller the obtained value of the moment of inertia would be and the quantitative measure of the tendency of a force to rotate an object about an axis, fulcrum, or pivot that causes or changes the rotational motion of a body is called

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