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5 Written questions

5 Matching questions

  1. motor
  2. electromagnet
  3. mechanical energy
  4. magnetic field
  5. brush
  1. a energy from a machine
  2. b A ______________ works through the interaction of 2 magnetic fields.
  3. c Strength of an ___________________________ is determined by amount of current in the wire and the amount of wire coils.
  4. d an invisible area of energy surrounding a magnet (force field)
  5. e an electrical conductor made of strips of metal that makes sliding contact between a stationary and moving part or a generator or motor

5 Multiple choice questions

  1. Buzzers work because chemical energy is transformed to __________________ which is transformed into sound energy.
  2. action between two or more part
  3. a covering made from a non-conducting material used to prevent short circuits or shocks from electricity
  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. buzzers_______________ work because chemical energy is transformed to electrical energy which is transformed into sound energy.

          

  2. magnetichaving the properties of a magnet

          

  3. battery_______________ work because chemical energy is transformed to electrical energy which is transformed into sound energy.

          

  4. electromagneta magnetism developed by a current of electricity

          

  5. energy and matterWhat two general groups are interacting to release sound energy?

          

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