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6 Written questions

5 Multiple choice questions

  1. A power source that generates electric current by a chemical reaction
  2. The force exerted by a machine to overcome resistance to gravity or friction
  3. The difference in electric potential energy between two different points; measured in volts (V).
  4. An electrical circuit where the current has only one path. If the path is interrupted in any point, it stops current flow in the entire circuit.
  5. The net buildup of electric charges on an object.

5 True/False questions

  1. parallel circuitAn electrical circuit where the current has only one path. If the path is interrupted in any point, it stops current flow in the entire circuit.

          

  2. electroscopeA device containing two suspended metal leaves in a jar that move apart when charged; used to detect the presence of electric charges.

          

  3. electrical powerThe rate at which electrical energy is converted to another form of energy; this is expressed in watts (W) or kilowatts (kW).

          

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

          

  5. currentA closed path through which electrons flow.

          

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