Practice Test | Kullabs.com
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  • The SI unit of work is ______.

    Pascal
    kg
    Dyne
    Joule
  • The relationship between work, force and distance is _______.

    Work = force + distance
    Work = force x distance
    Work = force - distance
    Work = force / distance
  • Force is a _______.

    vector quantity
    >quantity
    scalar 
    fundamental 
  • Though a man is standing with a heavy load on his head but the work done is zero because ______.

    the force is not enough to produce any work
    he does not move any distance
    force acting is downward on the body
    all the answers are correct
  • Whenever any work is done, it is done against ________.

    none
    friction
    gravity
    both friction and gravity
  • The capacity of a body to do the work is called _______.

    power
    energy
    all of the above
    work
  • A rock climber weighs 550 N and is carrying a backpack that weighs 50 N. How much total work has been done after she climbs 12 m?

    50 J
    7200 J
    600 J
    6000 J
  • If there is no motion produced in the body, then the work done is _______.

    force applied
    zero
    1
    pressure on the body
  • A body of mass 10 kg is dropped to the ground from a height of 10 metres. The work done by the gravitational force is (g = 9.8).

    -980
    +980
    -490
     +490
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