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5 Written questions

5 Matching questions

  1. buzzer arm angle
  2. coil
  3. wires
  4. amount of current in the wire and the amount of wire coils
  5. chemical energy
  1. a Buzzers work because _________________ is transformed to electrical energy which is transformed into sound energy.
  2. b a number of turns or loops of wire which produce an electromagnet effect
  3. c What part of the motor system is most directly involved in electrical enery?
  4. d What part (matter) of the buzzer system is most directly involved in sound energy?
  5. e Strength of an electromagnet is determined by _____________________________________________.

5 Multiple choice questions

  1. Strength of an ___________________________ is determined by amount of current in the wire and the amount of wire coils.
  2. As the armature turns the electrical circuit is _____________ and ____________________.
  3. a group of two or more cells connected together, usually in series, to furnish electrical current
  4. to draw or pull toward another object
  5. The electric current in the coils of wire around the nail releases ________ energy. This causes the coiled nail to get hot.

5 True/False questions

  1. wirehe chemical energy from the battery changes to electrical energy in the _______________.

          

  2. repelto 'drive back' or force away from another object

          

  3. electrical, chemical & mechanical energyenergy from electrical current

          

  4. sound energyenergy from chemical reactions

          

  5. armatureA ______________ works through the interaction of 2 magnetic fields.