Revising Electrical Circuits

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  1. 3. Measurements or observations collected during an investigation.
  2. 5. circuit A circuit arrangement in which components are connected on separate branches. A voltmeter is connected in parallel with the component being measured.
  3. 8. Estimating a value beyond the range of the data that was collected. This is generally less reliable than interpolation.
  4. 9. An approximate value based on available data, a graph or a calculation.
  5. 11. The unit used to measure potential difference or voltage.
  6. 12. circuit A circuit arrangement in which components are connected along the same path. An ammeter is connected in series.
  7. 14. An electrical component that transfers electrical energy into light and heat energy.
  8. 15. Another name for potential difference: the energy transferred per unit of charge between two points, measured in volts (V).
  9. 20. The rate at which electric charge flows through a circuit. Current is measured in amperes (A).
  10. 21. Estimating a value that lies between measured data points and within the range of collected data.
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  1. 1. variable The variable that is deliberately changed by the investigator.
  2. 2. variable A factor that is kept the same throughout an investigation to make the test fair.
  3. 4. motor A device that transfers electrical energy into movement (kinetic energy).
  4. 6. variable The variable that is measured or observed in response to changes in the independent variable.
  5. 7. of best fit A straight or curved line drawn to show the overall pattern or trend in plotted data.
  6. 10. difference The energy transferred per unit of electric charge between two points in a circuit. It is also called voltage and is measured in volts (V).
  7. 13. A device used to measure potential difference (voltage). It is connected in parallel across a component.
  8. 16. A device used to measure electric current. It is connected in series in a circuit.
  9. 17. A complete, closed path through which electric current can flow.
  10. 18. The general pattern or direction shown by a set of data, such as current increasing as voltage increases.
  11. 19. A factor in an investigation that can be changed, measured or controlled.
  12. 22. The unit used to measure electric current. It is often shortened to amp or represented by A.