Practice Moment of force (Torque) - 6.7.1 | 6. SYSTEMS OF PARTICLES AND ROTATIONAL MOTION | CBSE 11 Physics - Part 1
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6.7.1 - Moment of force (Torque)

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define torque and provide its formula.

πŸ’‘ Hint: Remember how force and distance from the pivot relate to rotation.

Question 2

Easy

What is the unit of torque?

πŸ’‘ Hint: Think about how torque relates to force and distance.

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 determines the torque on a lever arm?

  • Length of the lever arm only.
  • Magnitude of the force only.
  • Both length of the lever arm and magnitude of the force.
  • Neither length nor force.

πŸ’‘ Hint: Think of the physical examples of using levers.

Question 2

True or False: An increase in distance from the pivot will always increase the torque if force is constant.

  • True
  • False

πŸ’‘ Hint: Visualize applying the same force further down a lever.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A door with a width of 0.9 m has a handle located 0.8 m from the hinge. If a force of 20 N is applied perpendicular to the door at the handle, what is the resulting torque about the hinge?

πŸ’‘ Hint: Use the torque formula with distance to pivot.

Question 2

If the moment of inertia of a solid disc is given by I = 1/2 MRΒ², calculate the angular acceleration produced when a torque of 10 NΒ·m is applied to a disc with a mass of 5 kg and radius of 0.5 m.

πŸ’‘ Hint: Don’t forget to find I first before solving for Ξ±.

Challenge and get performance evaluation