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Transcript
Name:___________________________________________________________________ Date:__________ Electricity Fundamentals Review Mr. Barber Please read each question completely. You will select the best possible answer from the choices given. You are to indicate your answer by circling the corresponding letter. On questions which require you to fill in the blank, please completely answer the question and be sure to write neatly. Section I: Multiple Choice 1. The flow of electrons in a circuit is known as: A. Current B. Direction C. Electricity D. Electrons 2. Negatively charged particles of atoms are known as: A. Atoms B. Electrons C. Neutrons D. Protons 3. Positively charged particles of atoms are known as: A. Atoms B. Electrons C. Neutrons D. Protons 4. Particles of atoms that have no charge are known as: A. Atoms B. Electrons C. Neutrons D. Protons 5. A “closed loop” of wire or other conductors, through which electricity flows, is known as a: A. Clip B. Circuit C. Course D. Current 6. Which one of the following is found in a circuit? A. Switch B. Resistor C. Electricity D. All of the above 7. Elements that have a high resistance to electron flow are known as: A. Conductors B. Capacitors C. Insulators D. Inverters 8. Elements that have a low resistance to electron flow are known as: A. Conductors B. Capacitors C. Insulators D. Inverters 9. Which one of the following is NOT an insulator? A. Copper B. Plastic C. Porcelain D. Rubber 10. Which one of the following is NOT a conductor? A. Copper B. Gold C. Rubber D. Silver 11. The most common metal used to make electrical wire is: A. Aluminum B. Copper C. Gold D. Silver 12. The thin metal wire used in light bulbs to create light is known as the: A. Conductor B. Director C. Filament D. Wire 13. This mechanical device is used to control the flow of electricity in a circuit: A. Capacitor B. Resistor C. Transformer D. Switch 14. Which ONE of the following chemicals is found in a typical battery? A. Acid B. Acetate C. Water D. Hydrogen Peroxide 15. A series of electric cells connected together is known as a: A. Unit B. Collective C. Battery D. Device 16. Any device that increases electrical resistance in a circuit is known as a: A. Fuse B. Resistor C. Capacitor D. Switch 17. Which one of the following terms describes the direction of electron flow in a circuit? A. Amperage B. Current C. Resistance D. Voltage 18. Which type of current allows electron flow in only ONE direction? A. Alternating Current B. Continuous Current C. Direct Current D. Divided Current 19. Which type of current allows electron flow in BOTH directions? A. Alternating Current B. Continuous Current C. Direct Current D. Divided Current 19. The electrical circuit found in your home uses which type of current? A. Alternating Current B. Continuous Current C. Direct Current D. Divided Current 20. A device that can increase or decrease voltage in a circuit is known as a: A. Breaker B. Fuse C. Transformer D. Switch 21. A mechanical device that contains a magnet and a coil, and must be spun in order to create electricity is: A. a Generator B. a Transformer C. a Turbine D. a Windmill 22. A fan-like mechanical device that is spun by steam, wind or water, is: A. a Generator B. a Transformer C. a Turbine D. a Windmill 23. In which ONE of the following methods is a turbine NOT used? A. Wind B. Solar C. Hydroelectric D. Nuclear Section II: Matching 24.________ Light Bulb 25.________ Single Cell 26.________ Electric Motor 27.________ 3 Cell Battery 28.________ Switch 29.________ Outlet 30.________ Resistor Section III: Identification 31. Identify the type of electricity production shown here A. Geothermal B. Hydroelectric C. Nuclear D. Tidal 32. Identify the type of electricity production shown here A. Geothermal B. Hydroelectric C. Nuclear D. Tidal 33. Identify the type of electricity production shown here A. Geothermal B. Hydroelectric C. Nuclear D. Tidal 34. Identify the type of electricity production shown here A. Geothermal B. Hydroelectric C. Nuclear D. Tidal 34. Identify the type of electricity production shown below A. Battery B. Coal Combustion C. Wind D. Solar 36. Identify the type of electricity production shown here A. Battery B. Coal Combustion C. Wind D. Solar 36. Identify the type of electricity production shown here A. Battery B. Coal Combustion C. Wind D. Solar 36. Identify the type of electricity production shown here A. Battery B. Coal Combustion C. Wind D. Solar Section IV: Fill in the blank 37. List the 3 primary by-products produced when coal is burned. 38. After electricity is created at the power plant, it`s voltage is increased to approximately 500,000 volts using a _______________________ transformer. 39. _______________________________ lines carry electricity from the power plant to sub stations. 40. _______________________________ lines carry electricity from the substation to the consumer. 41. A ________________ measures the amount of electricity each home or business uses each month. 42. Electricity companies charge consumers based on the number of ____________________________ of electricity they used on a given billing cycle. 43. A ______________________ is used to measure the amount of voltage found in a given circuit. 44. In a series circuit, in order to determine the total voltage, you must _____________ the voltages together. 45. Modern circuit wiring is done in ____________________________ , so that in case one light goes out, the others will remain lit. Section V: Circuit Diagramming For the following, diagram each given circuit scenario. Be sure to use the proper symbols for each item. 46. 2 – 1.5V Single Cell Batteries wired in series, powering a single light bulb. 47. 1- 9V (3-cell) battery powering 2 light bulbs in parallel, with a switch controlling both lights. 48. 2 – 1.5V(Single Cell) batteries in series powering 3 light bulbs in series, with a switch controlling all 3 lights. 49. 1 – 9V(3-cell) battery powering an electric motor, with a switch controlling the motor. 50. 1-12v (6-cell) battery powering 2 light bulbs, with a switch controlling each bulb individually. 51. 2 – 1.5V(Single Cell) batteries in parallel powering 3 outlets, with a switch controlling each outlet. 52. 1 – 6V(3-cell) battery powering 2 light bulbs and 2 electric motors, each bulb is wired in parallel with a switch controlling each bulb, and the motors are wired in series, with a switch controlling them. 53. 1 – 1.5V(Single Cell) battery powering a light bulb, with a 2 switches controlling the bulb, one on the positive side of the circuit, and one on the negative side of the circuit Go on to Next Page Section VI: Write-Out For questions 54 – 60, you will identify each stage of the coal-burning method of producing electricity. You will also give a brief explanation of what occurs at each stage. Please write neatly. 54. _____________________________ - ______________________________________________________ 55. _____________________________ - ______________________________________________________ 56. _____________________________ - ______________________________________________________ 57. _____________________________ - ______________________________________________________ 58. _____________________________ - ______________________________________________________ 59. _____________________________ - ______________________________________________________ 60. _____________________________ - ______________________________________________________ End of Exam