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5 Written questions

5 Matching questions

  1. Power
  2. Speed
  3. Lever
  4. Force
  5. Magnetism
  1. a A push or pull that acts on an object (p. 410)
  2. b A type of simple machine consisting of a bar that turns on
    a support called a fulcrum (p. 428)
  3. c The rate at which work is done (p. 417)
  4. d A force that pushes and pulls on other objects (p. 412)
  5. e Describes how far an object moves during a certain
    amount of time (p. 408)

5 Multiple choice questions

  1. A device that changes the direction or the amount of
    effort needed to do work (p. 426)
  2. The state in which the net force is zero (p. 419)
  3. A simple machine consisting of a wheel that revolves
    around a post, or axis (p. 427)
  4. The speed and direction of an object's motion (p. 409)
  5. A form of simple machine consisting of a slanted surface
    along which objects are easier to push upward than to lift
    straight up (p. 429)

5 True/False questions

  1. Newton's First
    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)


  2. AccelerationThe rate at which the velocity of an object changes over
    time (p. 422)


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


  4. ElectricityAn object is electrically charged when it gains or loses


  5. Newton's Second
    Law of Motion
    Describes the relationship between acceleration (the rate
    at which an object's velocity changes over time), mass, and
    net force