Magic of Electrons Review

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Across
  1. 6. A device used to introduce some amount of resistance into a circuit.
  2. 7. The simplest form of matter. A pure substance composed of only one type of atom.
  3. 8. An accurate representation of an object or phenomenon. Models can be visual, physical, mathematical, or computational and are often used in the development of scientific theories or the creation of artifacts.
  4. 10. Current Theory The current in the circuit is directed away from the positive terminal of the power source and toward the negative terminal of the electric source.
  5. 12. data represented as a range of values
  6. 13. Theory The current in the circuit is directed away from the negative terminal of the power source and toward the positiveAna terminal of the electric source.
  7. 15. Different factors affecting resistance include length the atoms must travel, the diameter of the space the atoms have to travel through and
  8. 17. A device or material that permits current to flow through it easily.
  9. 18. An electrical device used to store electrical charge.
  10. 20. A flow of electric charge.
  11. 23. The way people use resources to meet their wants and needs.
  12. 26. An instrument for measuring the properties of an electrical circuit.
  13. 28. An accumulation of electric charge on an insulated body.
  14. 30. A binary number 8 bits long.
  15. 31. A material used to electrically isolate two conductive surfaces.
  16. 32. The force behind the movement of electrons.
  17. 36. A base-10 number system that uses the digits 0-9.
  18. 38. the strength of an electric current in amperes.
  19. 40. An electronic system that performs a logical operation on an input signal.
  20. 41. A material that is both a poor conductor and a poor insulator.
  21. 43. A small electronic device used in a circuit as an amplifier or switch.
  22. 44. A particle with no charge that is found in the nucleus of an atom.
  23. 45. The outermost ring of electrons in an atom. Used to determine whether an element is an insulator, conductor or semiconductor.
  24. 46. This is equal to the number of protons (positively charged particles) in the nucleus of an atom.
  25. 49. an electrical resistor whose resistance is greatly reduced by heating, used for measurement and control.
  26. 50. Data represented as either yes/no or true/false.
  27. 52. Using technological and scientific knowledge to solve practical problems.
  28. 53. An improvement of an existing technological product, system, or method of doing something.
  29. 54. A table listing all possible inputs to a circuit and the corresponding outputs.
Down
  1. 1. An object that is surrounded by a magnetic field and that has the property, either natural or induced, of attracting iron or steel.
  2. 2. (LED) A semiconductor diode that emits light when conducting current.
  3. 3. A device used to convert mechanical energy into electrical energy.
  4. 4. A device used to convert electric energy into mechanical energy.
  5. 5. A device that permits current to flow through it in only one direction.
  6. 9. A group of electronic components that work together to perform a specific function.
  7. 11. How much more or less you can expect a resistor’s actual measured resistance to be from its stated resistance.
  8. 14. An electrical path between two points.
  9. 16. A direct current voltage source made up of one or more units that convert chemical, thermal, nuclear, or solar energy into electrical energy that can be stored until it is needed.
  10. 19. A circuit with only one path for electricity to flow
  11. 21. The smallest unit of a chemical element, made up of a nucleus surrounded by electrons.
  12. 22. a device that generates an electric current or voltage dependent on the degree of illumination.
  13. 24. (Binary Digit) the smallest unit of data that a computer can process and store
  14. 25. The opposition of current flow. More resistance, less current flow.
  15. 27. A resistor that has a value that cannot be changed.
  16. 29. A circuit with only one path for electricity to flow
  17. 33. a law stating that electric current is proportional to voltage and inversely proportional to resistance.
  18. 34. A map of an electronic circuit. It uses symbols to represent electrical components along the pathway.
  19. 35. Magnet created by passing a current through a coil of wire.
  20. 37. A base-2 number system that uses two digits, 0 and 1.
  21. 39. Atomic particle with a positive charge, located in the nucleus of an atom.
  22. 42. A negatively charged particle around the nucleus in an atom.
  23. 47. A mechanical device used to connect or disconnect a component or circuit.
  24. 48. A resistor whose value can vary between its minimum and maximum values.
  25. 51. A person who is trained in and uses technological and scientific knowledge to solve practical problems.