System of Particles & Rotatory Motion — Important Questions
Telangana Open School (TOSS) · Class 12 · Physics
49 important questions from System of Particles & Rotatory Motion for Telangana Open School (TOSS) Class 12 Physics, with answers.
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Important Questions from System of Particles & Rotatory Motion
In rotational motion, all particles of a rigid body move in:
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Concentric circular paths
In pure rotational motion, every particle of a rigid body moves in a circular path around the axis of rotation, with the centres of these circles lying on the axis.
The unit of angular displacement is:
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Radian
Angular displacement is measured in radians. One complete rotation corresponds to 2π radians.
The turning effect of a force is called:
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Torque
Torque is the measure of the turning effect of a force about an axis. It is given by the product of force and perpendicular distance from the axis.
The moment of inertia plays the same role in rotational motion as ________ does in linear motion.
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Mass
Just as mass resists change in linear motion, moment of inertia resists change in rotational motion.
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