Ten100: Chapter 27 Assignment
13 Questions
| Total Attempts: 123
Questions and Answers
- 1.When Alex arrived in Alaska in 1970, why didn't people in the Alaskan bush have telecommunications services? How did rural Alaskans communicate over long distances?
- 2.How did Alex draw on his earlier work when developing Wi-Fi technology?
- 3.Why wouldn't shortwave communications problem in rural Alaska? How did satellites solve the problem?
- 4.What is the frequency of the broadcast by your favorite radio station?
- 5.Some rural Alaskan villages are not on the Alaskan power distribution grid. List a few ways that the towns might power the communications technologies they now use.
- 6._____________ is often described as waves of energy. It is very useful for transmitting information because it travels fast.
- 7.A ____________ is one complete wave, labeled as the distance from the peak of the wave to the next peak.
- 8.Radio waves have the lowest _____________.
- 9.____________ is the length of waves per second.
- 10.As the frequency of a wave increases, its wavelength _____________, and vice versa.
- 11.Short radio can travel long distances by bouncing off a layer of the atmosphere called the _____________.
- 12.Satellites operate on a frequency of four to six ___________.
- 13.In 1993, a new technology was created at Carnegie Mellon University called Wireless Andrew, which is today known as ___________.
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