6.7.1 - Moment of force (Torque)
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Practice Questions
Test your understanding with targeted questions
Define torque and provide its formula.
💡 Hint: Remember how force and distance from the pivot relate to rotation.
What is the unit of torque?
💡 Hint: Think about how torque relates to force and distance.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What determines the torque on a lever arm?
💡 Hint: Think of the physical examples of using levers.
True or False: An increase in distance from the pivot will always increase the torque if force is constant.
💡 Hint: Visualize applying the same force further down a lever.
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Challenge Problems
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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?
💡 Hint: Use the torque formula with distance to pivot.
If the moment of inertia of a solid disc is given by I = 1/2 MR², calculate the angular acceleration produced when a torque of 10 N·m is applied to a disc with a mass of 5 kg and radius of 0.5 m.
💡 Hint: Don’t forget to find I first before solving for α.
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