Practice MOMENT OF INERTIA - 6.9 | 6. SYSTEMS OF PARTICLES AND ROTATIONAL MOTION | CBSE 11 Physics - Part 1
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Knowledge

6.9 - MOMENT OF INERTIA

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the moment of inertia of a uniform disk of mass M and radius R about its center?

💡 Hint: Consider how mass is distributed uniformly across the disk.

Question 2

Easy

Can moment of inertia change with different axes of rotation?

💡 Hint: Think of a shape like a rectangle and how it would rotate around different axes.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the moment of inertia of a hollow sphere about its center?

  • (2/5)MR²
  • (1/2)MR²
  • 2MR²

💡 Hint: Recall standard moment of inertia formulas for various shapes.

Question 2

True or False: The angular momentum and the moment of inertia vector are always aligned.

  • True
  • False

💡 Hint: Consider how shapes rotate and their symmetry.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A cylindrical shell of mass M and radius R is spinning about its central axis. If the radius doubles while the mass remains constant, how does the moment of inertia change?

💡 Hint: Use the formula and consider the effect of the radius.

Question 2

Consider a rotating system where an external torque is applied causing an angular acceleration of 5 rad/s². If the initial moment of inertia is 0.5 kg m², what external torque is required?

💡 Hint: Apply τ = Iα directly without substitutions.

Challenge and get performance evaluation