NEET Physics: System of Particles and Rotational Motion — MCQ Test 18

Q6. A uniform disk of mass \( 2 \, \text{kg} \) and radius \( 0.2 \, \text{m} \) rotates about its center with an angular speed of \( 10 \, \text{rad/s} \). What is its rotational kinetic energy?

Q7. For a body rotating about a fixed axis, what is true about particles on the axis?

Q8. Which of the following is true about the angular velocity of a rigid body rotating about a fixed axis?

Q9. A uniform rod of length \( 2 \, \text{m} \) and mass \( 4 \, \text{kg} \) lies along the x-axis with its left end at the origin. What is the position vector of its center of mass?

Q10. A solid sphere of mass \( 3 \, \text{kg} \) and radius \( 0.1 \, \text{m} \) rolls without slipping down an incline. If its linear speed is \( 5 \, \text{m/s} \), what is its angular velocity?

NEET Physics — System of Particles and Rotational Motion

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Why does a symmetric body rotating about its symmetry axis have angular momentum aligned with the axis?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Physics preparation, focusing specifically on the chapter System of Particles and Rotational Motion. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Symmetric, Rotating, Symmetry, Momentum, Acceleration, and Rotational.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. Why does a symmetric body rotating about its symmetry axis have angular momentum aligned with the axis?

  • A. Due to high torque
  • B. Due to cancellation of perpendicular components
  • C. Due to zero angular velocity
  • D. Due to uneven mass distribution

Q2. A torque of \( 9 \, \text{Nm} \) is applied to a wheel with moment of inertia \( 3 \, \text{kg m}^2 \). What is its angular acceleration?

  • A. 2 rad/s²
  • B. 3 rad/s²
  • C. 4 rad/s²
  • D. 5 rad/s²

Q3. A uniform disk of mass \( 4 \, \text{kg} \) and radius \( 0.5 \, \text{m} \) rotates at \( 8 \, \text{rad/s} \). What is its angular momentum about its axis?

  • A. 2 kg m²/s
  • B. 3 kg m²/s
  • C. 4 kg m²/s
  • D. 5 kg m²/s

Q4. In rotational motion, what is the relationship between linear velocity and angular velocity for a particle?

  • A. \( v = \omega / r \)
  • B. \( v = \omega r \)
  • C. \( v = \omega r^2 \)
  • D. \( v = \omega / r^2 \)

Q5. A solid sphere of mass \( 3 \, \text{kg} \) and radius \( 0.4 \, \text{m} \) has an angular momentum of \( 12 \, \text{kg m}^2/\text{s} \). What is its angular velocity?

  • A. 60 rad/s
  • B. 62.5 rad/s
  • C. 65 rad/s
  • D. 67 rad/s

+ 5 more questions in the actual test

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