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5 Written questions

5 Matching questions

  1. Speed
  2. Force
  3. Pulley
  4. Machine
  5. Equilibrium
  1. a A device that changes the direction or the amount of
    effort needed to do work (p. 426)
  2. b A push or pull that acts on an object (p. 410)
  3. c Describes how far an object moves during a certain
    amount of time (p. 408)
  4. d A kind of simple machine consisting of a rope that fits
    onto a wheel and used to change the direction of a force
    (p. 426)
  5. e The state in which the net force is zero (p. 419)

5 Multiple choice questions

  1. An object at rest will stay at rest until another object
    acts upon it, and an object moving in a straight line at a
    constant speed will continue to move in a straight line at a
    constant speed until a net force acts upon it (inertia)
  2. A simple machine consisting of a wheel that revolves
    around a post, or axis (p. 427)
  3. A type of simple machine consisting of a bar that turns on
    a support called a fulcrum (p. 428)
  4. The tendency of an object to resist a change in motion (p.
    420)
  5. Describes the relationship between acceleration (the rate
    at which an object's velocity changes over time), mass, and
    net force

5 True/False questions

  1. Simple MachineMachines that only have a few parts - they make it easier
    to do work

          

  2. Inclined PlaneA form of simple machine consisting of a slanted surface
    along which objects are easier to push upward than to lift
    straight up (p. 429)

          

  3. AccelerationA contact force that resists the movement of one surface
    past another surface (p. 414)

          

  4. Newton's Third
    Law of Motion
    An object at rest will stay at rest until another object
    acts upon it, and an object moving in a straight line at a
    constant speed will continue to move in a straight line at a
    constant speed until a net force acts upon it (inertia)

          

  5. ElectricityThe speed and direction of an object's motion (p. 409)