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6 Written questions

5 Multiple choice questions

  1. An area surrounding an electron that exerts a force on anything nearby with an electric charge; is strongest nearest the electron and weakens with a distance.
  2. The net buildup of electric charges on an object.
  3. A closed path through which electrons flow.
  4. An electrical circuit where the current flows through more than one path. If one path is interrupted, current will still flow through the other paths.
  5. The flow of electrons through a wire or any conductor; measured in a amperes (A) with an ammeter.

5 True/False questions

  1. ohm's lawStates that potential difference=current X resistance, or V (volts)=I (amperes) X R (ohms).

          

  2. resistanceThe force exerted by a machine to overcome resistance to gravity or friction

          

  3. conductorA material that allows electrons to move easily through it.

          

  4. insulatorA material that does not allow heat or electrons to move through it easily.

          

  5. wet cellA power source that generates electric current by a chemical reaction

          

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