Electrical Principles and Technologies Review Crossword

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Across
  1. 2. These are used to show components and connections clearly in circuit drawings
  2. 5. For any given voltage, current ________________ if you add resistance
  3. 6. If you increase the voltage in a circuit, the current also _____________
  4. 7. Usually the best method for turning electricity on and off in a circuit
  5. 8. Also called Potential Difference
  6. 10. To prevent heat loss you should add
  7. 14. Using resources at a rate that can be maintained indefinitely
  8. 17. Another name for curcuit drawings
  9. 18. There is only one pathway for the current, if this pathway is interrupted the whole circuit cannot function
  10. 19. The resistance is measured in _______
  11. 22. Is the rate at which a device converts energy
  12. 24. Type of cell that produce electricity from chemical reactions that cannot be reversed
  13. 25. Used in pacemakers
  14. 26. These attract each other
  15. 29. Current does not flow easily through these
  16. 32. Current that flows in only one direction. Example is a battery
  17. 34. Type of resource that cannot be replaced as it is used up
  18. 36. Coverts Electrical energy to Mechanical
  19. 39. Heat from the Earth's core
  20. 40. Does not flow but rather it may jump from one object to another in the form of electrical discharge
  21. 41. Ratio of useful energy that a device produces verses the amount of energy that went into the electrical device
  22. 42. Measurement for the rate which an electrical current flows
Down
  1. 1. Measure electric current
  2. 3. Can be used to: control the amount of current in a circuit, produce light, produce heat
  3. 4. Contain a thin piece of metal that is specially designed to melt if too much current passes through it
  4. 9. Current that flows back and forth 60 times per second
  5. 11. Used to remove impurities from metals
  6. 12. Commonly used unit of electrical energy, equal to a power consumption of 1000 W for one hour
  7. 13. Connecting cells together creates these
  8. 15. These have no resistance to electron flow
  9. 16. Substances that allow their electrons to flow when electricity is applied
  10. 20. Power produced by capturing the energy of falling water
  11. 21. Have a separate current path for each section
  12. 23. These have a wire that triggers a spring mechanism that turns the switch off
  13. 25. Coating a cheaper metal with a thin layer of silver of gold, often done to protect metals from corrosion
  14. 27. The easiest way to increase efficiency is to decrease
  15. 28. Rechargeable cells are known as this type of cell
  16. 30. Several different measuring circuits mounted in the same case
  17. 31. Allows you to change the amount of resistance in a circuit by turning/ pushing on a switch
  18. 33. Device that concerts electrical energy to another form of energy
  19. 35. Ability to do work
  20. 37. Name for garbage that decomposes and produces combustible gases that can be used as fuel
  21. 38. Energy cannot be ________ or destroyed only transformed from one form to another