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Agniveer Air Force System of Particles and Rotational Motion — practice questions

Explore 18 free System of Particles and Rotational Motion questions in Agniveer Air Force Physics. Open each question or exercise to read its content, reference answers and available explanation.

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System of Particles and Rotational Motion questions and exercises with answers

Showing questions 1–18 of 18.

A body with a perfectly definite and unchanging shape is called:Read the answer and worked solution →In a rigid body, the distances between pairs of particles:Read the answer and worked solution →Is any real body truly rigid?Read the answer and worked solution →Fixing a body along a straight line leaves only which motion?Read the answer and worked solution →The fixed line about which a body rotates is its:Read the answer and worked solution →The rotational counterpart of force is the moment of force, also called:Read the answer and worked solution →Torque is which kind of quantity?Read the answer and worked solution →The SI unit of the moment of force is the:Read the answer and worked solution →If the directions of both r and F are reversed, the torque direction:Read the answer and worked solution →The rotational analogue of mass is the:Read the answer and worked solution →The SI unit of moment of inertia is:Read the answer and worked solution →Moment of inertia is written as M times which square?Read the answer and worked solution →Moment of inertia measures a body's rotational:Read the answer and worked solution →Which machine is named as using this property practically?Read the answer and worked solution →Conservation of angular momentum means conservation of how many components?Read the answer and worked solution →Conservation of angular momentum is the rotational analogue of conserving:Read the answer and worked solution →For rotational equilibrium, the sum of the torque components must be:Read the answer and worked solution →In a rotating rigid body, each particle moves in:Read the answer and worked solution →

Worked practice questions

A body with a perfectly definite and unchanging shape is called:

  1. A rigid body
  2. A rigged body
  3. A ringed body
  4. A ridged body
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Correct answer: A. A rigid body

1. The distances between all its particles stay fixed. 2. It is an idealisation used to simplify problems. 3. It is a rigid body. _Source: syllabus Physics, Ch 6 'Systems of Particles and Rotational Motion'_

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In a rigid body, the distances between pairs of particles:

  1. Diverge sharply
  2. Do not change
  3. Double slowly
  4. Drift steadily
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Correct answer: B. Do not change

1. This is what makes the shape definite. 2. It is the defining property. 3. The distances do not change. _Source: syllabus Physics, Ch 6 'Systems of Particles and Rotational Motion'_

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Is any real body truly rigid?

  1. Yes, most are
  2. Yes, some are
  3. No, none is
  4. Yes, all are
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Correct answer: C. No, none is

1. Real bodies deform when forces act on them. 2. The deformations are often negligible. 3. No real body is truly rigid. _Source: syllabus Physics, Ch 6 'Systems of Particles and Rotational Motion'_

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