Exam trial 4

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  1. In electromagnetic induction a spinning magnet (fluctuating magnetic field) induces _______ into conductive coils, which surround the magnet
    electric currents
  2. The electromagnetic induction principle developed by Michael Faraday in 1831 is important to us because it helped trigger the _________ industry
  3. James Clerk Maxwell explained Clausius’ entropy as _______
    transformation content
  4. Which of the following is one of the eight great technologies according to Burke:
  5. Throughout history we have witnessed periods of lasting increases in the rate technological development. All these periodic increases are due to improved _______
  6. Power = volts x _______
  7. If the power running through a power line is 20,000 watts and the voltage is 1000 volts then what is the current in the line?
  8. Edison demonstrated the dangers of _______ by electrocuting _______.
    AC, animals
  9. AC electricity was chosen as the preferred form of electrical power from the power plant because its ______ can easily and efficiently be changes using a ______
    voltage, transformer
  10. AC power of 100 volts and 1 ampere enters a transformer with 5 coils and exits the transformer with 25 coils. What is the exiting voltage and current?
  11. AC can be converted into DC by passing the AC through a ______.
  12. Stem cells
  13. Sir Isaac Newton told us about gravity and gave us a simple elegant equation to calculate it. The force of gravity is proportional to _____ of two objects and inversely proportion to their _______.
  14. Daniel Bernoulli told us about the physics of fluids and described it mathematically telling us that [density x velocity2/2) + pressure = constant] which means fluid velocity is inversely related to its pressure. A flying Frisbee floats partly because the velocity of air passing over the frisbee’s _____ is _____ than the air velocity passing the bottom therefore creating higher pressure on the frisbee’s bottom creating lift
  15. Sulfur and Nitrogen oxides from coal burning combine with water in the atmosphere to form___.
    acid rain
  16. The transistor is a solid state electronic _______ with _____ moving parts.
  17. Albert Einstein won a Nobel Prize in 1922 for telling us about the photoelectric effect. Which one of Burkes major technologies owes its origin to the photoelectric effect?
  18. Einstein also told us E=mc2which tells us that the_____ and ______ of an object is directly proportional and interchangeable.
  19. Antimatter was first observed in 1955. Since then extremely small amounts have been made. When antimatter contacts matter the matter changes into ______.
  20. If we could convert 2 gram of matter into energy it would be equivalent to about ___ Hiroshima size atomic bombs
  21. The simple act of observing or measuring a quantum particle like an atom destroys its _____? This is the basis of emerging quantum cryptography technology
  22. Intel co-founder, Gordon Moore claimed that the number of ______ on a chip could _____ every 24 months. This has since become know as Moore’s Law.
    transistors, double
  23. The N side or cathode of  a solid state Si (group 4) diode could be doped with a group _____ element
  24. Electrical power loss in the transmission cable is equal to resistance x current2. This electrical power is sent at very high voltage to _____.  (Hint: remember power = current x volts
  25. Which of the following is not an option suggested by Burke to cope with the rapid technological changes we face?
    keep going the way we have
  26. . In a diode electrons flow in one direction, from the _____ to the ________.
    cathode, anode
  27. Which of the following persons worked alone with no outside influence or collaborators
    no inventor works alone
  28. In a special type of solid-state diode the N side is higher energy than the P side and under forward bias current flow electrons combine with holes at the junction interface to produce ____.
  29. The ________ is a solid-state replacement for a vacuum tube
  30. Which of the following is a trigger for technological change according to Burke:
  31. Graphite, diamonds, and buckminsterfullerene are all allotropes of ____
  32. In the garden hose analogy to electricity the _____ is analogous to resistance (ohms) and the ______ is analogous to volts
  33. Nuclear fission is the ______ of an element while nuclear fusion is the ______ of small elements to make a large element
  34. The branch of technology, which deals with dimensions and tolerances of 10-7 meters, especially the manipulation of individual atoms or molecules is called ______.
  35. What are Luddites?
  36. Early 20th century, American scientist, inventor and educator responsible for increasing the farmers’ productivity and wealth
  37. Burke believes that ordinary people are often prevented from sharing in scientific and technological discussions because they
  38. Inventors are generally:
  39. The development of a near perfect vacuum allowed the development of:
  40. The uncertainty principle and entanglement theory are topics in __________.
  41. Light amplification by stimulated emission radiation results in _______.
  42. How are communications and technological development related?
    directly related
  43. Why is technology changing faster now than 200 years ago?
  44. Why is it difficult to predict future technological developments?
  45. Give a unit of electrical power equivalent to J/s.
  46. What is the difference between fusion and fission?
  47. In the simplest terms what were the motivations of A. Einstein, I. Newton, D. Bernoulli and R. Clausius which led to their discoveries?
  48. Give examples of genetically modified items you may have used recently
  49. How does a light emitting diode, LED, works?
  50. In fluid flow, how are pressure and velocity related?
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Exam trial 4
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