Physics

8th -

11thgrade

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Principle of Moments

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13 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt
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    What is the anticlockwise moment acting on this crane?
    80,000Nm
    100,000Nm
    120,000Nm
    140,000Nm
  • 2. Multiple Choice
    30 seconds
    1 pt
    Image
    A seesaw is unbalanced with two people of different masses sitting equal distances from the center. Which of the following will result in equilibrium?
    The larger person moving further away from the center.
    Moving the smaller person closer to the center.
    Moving the smaller person further from the center.
    Making the larger person do nothing.
  • 3. Multiple Choice
    30 seconds
    1 pt
    Image

    Two masses of mass 10.0 and 6.0 kg are hung from massless strings at the end of a light rod. The rod is virtually weightless. A pivot (fulcrum) is placed off center and the system is free to rotate. If the 6.0 kg mass is 4.0 m away from the pivot, how far away is the 10.0 kg mass if the system is not rotating?

    0.42 m

    2.4 m

    4.8 m

    4.2 m

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