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Nautical Science Unit Four Chapter Four Extra Credit

Short Answer
 

 1. 

What are the two types of waves, and what are the two forms these waves can take?
 

 2. 

What is the standard unit of measurement of frequency and what does this measurement represent?
 

 3. 

What is the audible frequency range for the human ear?
 

 4. 

Describe the following wave terms:  Cycle, Wavelength, Amplitude, and Period.
 

 5. 

What range of frequencies in the electromagnetic spectrum comprise radio waves?
 

 6. 

What is the fundamental principle of radar?
 

 7. 

What are the three general categories of U.S. Navy radars?
 

 8. 

What are the two categories of search radars, and what are they used for?
 

 9. 

What is the “scope” or PPI presentation for a search radar?
 

 10. 

What are the functions of EA and EP?
 



 
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