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5 Written questions

5 Matching questions

  1. Newton's Second
    Law of Motion
  2. Machine
  3. Work
  4. Equilibrium
  5. Power
  1. a The rate at which work is done (p. 417)
  2. b The state in which the net force is zero (p. 419)
  3. c A device that changes the direction or the amount of
    effort needed to do work (p. 426)
  4. d Describes the relationship between acceleration (the rate
    at which an object's velocity changes over time), mass, and
    net force
  5. e Energy used when a force moves an object (p. 416)

5 Multiple choice questions

  1. A type of simple machine consisting of a bar that turns on
    a support called a fulcrum (p. 428)
  2. An object is electrically charged when it gains or loses
    electrons
  3. The tendency of an object to resist a change in motion (p.
    420)
  4. A simple machine consisting of a wheel that revolves
    around a post, or axis (p. 427)
  5. A force that pushes and pulls on other objects (p. 412)

5 True/False questions

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

          

  2. 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)

          

  3. 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)

          

  4. VelocityThe speed and direction of an object's motion (p. 409)

          

  5. ForceEnergy used when a force moves an object (p. 416)