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5 Written Questions

5 Matching Questions

  1. Unbalanced Forces
  2. Simple Machine
  3. Net Force
  4. Complex Machine
  5. Newton's 2nd Law of Motion
  1. a a machine made of more than one simple machine
  2. b a machine that consists of a few parts.
  3. c the relationship between mass, acceleration & force. Force = Mass X Acceler.
  4. d When 1 object exerts more force on another object and movement occurs. Forces may be in the same direction or opposite directions, but there is movement. There is a Net Force.
  5. e When a force acts on an object and causes it to move (may be in the same direction or in opposite directions).

5 Multiple Choice Questions

  1. the distance an object moves during a certain amount of time (miles per second; mph) Average speed = Distance divided by time
  2. will demonstrate in class
  3. a force that pulls everything toward the center of the Earth
  4. Force is measured in units called Newtons (not the cookie)
  5. Work in measured in units called Joules (not the ones I wear)

5 True/False Questions

  1. Powerwork is done in a certain time. Work divided by time = power; measured in Watts

          

  2. Forcea force that moves an object; no work is done if an object doesn't move. Force X Distance = Work

          

  3. Machinemovement of objects, people, or animals in many different directions

          

  4. Inertiathe force that keeps objects moving in a straight line; resists a change in motion

          

  5. Worka push or pull that acts on an object

          

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