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5 Written questions

5 Matching questions

  1. insulated wire
  2. nail
  3. closed and open
  4. armature
  5. motor
  1. a wire with a coating to protect you from shock
  2. b a machine for converting elecrical energy into mechanical energy
  3. c As the armature turns the electrical circuit is _____________ and ____________________.
  4. d The electrical energy creates a magnetic frce field around the ____________.
  5. e the moveable part of a motor consisting of coils or wire around a center core

5 Multiple choice questions

  1. What types of energy are present in the motor?
  2. lines that show where a force field is located
  3. an invisible area of energy surrounding a magnet (force field)
  4. Strength of an ___________________________ is determined by amount of current in the wire and the amount of wire coils.
  5. a core of magnetic material surrounded by a coil of wire through which an electric current is passed to magnetize the core

5 True/False questions

  1. transformationrapid movement back and forth that produces a sound


  2. cella number of turns or loops of wire which produce an electromagnet effect


  3. magnetismthe property, quality or state of being magnetic


  4. magnetic fieldsan invisible area of energy surrounding a magnet (force field)


  5. wireshe chemical energy from the battery changes to electrical energy in the _______________.