NEET  >  Moment of Inertia

# Moment of Inertia Video Lecture - Physics Class 11 - NEET

## Physics Class 11

116 videos|451 docs|188 tests

## FAQs on Moment of Inertia Video Lecture - Physics Class 11 - NEET

 1. What is the moment of inertia?
Ans. The moment of inertia is a physical property of an object that describes its resistance to rotational motion around a given axis. It depends on the object's mass distribution and the axis of rotation.
 2. How is the moment of inertia calculated?
Ans. The moment of inertia can be calculated using the formula: I = ∫r²dm, where I is the moment of inertia, r is the perpendicular distance from the axis of rotation to the mass element, and dm is the mass element.
 3. What factors affect the moment of inertia of an object?
Ans. The moment of inertia of an object is influenced by its mass distribution and the axis of rotation. Objects with more mass concentrated farther from the axis of rotation have a higher moment of inertia.
 4. How does the moment of inertia affect rotational motion?
Ans. The moment of inertia plays a crucial role in rotational motion. According to Newton's second law for rotation, the angular acceleration of an object is inversely proportional to its moment of inertia. Objects with a higher moment of inertia require more torque to achieve the same angular acceleration.
 5. Can the moment of inertia be negative?
Ans. No, the moment of inertia cannot be negative. It is a scalar quantity that represents the rotational inertia of an object. Negative values do not have physical significance in the context of moment of inertia.

## Physics Class 11

116 videos|451 docs|188 tests

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