Appendix II - Quiz

Fill in the blanks.

1.  __________________ _____________________ refers to the process of gathering information about an object, at a distance, without touching the object itself.

2.  Three major components of electromagnetic radiation are ___________________________, ___________________________, and ______________________________.

3.  A major difference between the human eye and remote sensors is the ___________________________ range of light in the electromagnetic spectrum that they are sensitive to.

4.  The electromagnetic spectrum can be sliced up into discrete segments of wavelength ranges called __________, also sometimes referred to as a channel.

5.  The frequency of visible light ranges from a high of _____ µm to a low of _____µm.

6.  The three primary colors reflected from an object known as additive primaries are the ____________, _______________, and _________ wavelengths.

7.  Remote sensors operating in the thermal infrared wavelength range measure an object’s _________________________________.

8.  The sharp increase of reflected energy just beyond the red region of visible light into the near infrared region is referred to as the _________ ____________.

9.  _____________________ sensors monitor only the natural solar reflected light or electromagnetic energy from an object.

10. The smallest size picture elements on a computer screen are called __________________.

11.  ________________________ resolution, is the sensitivity of a sensor to respond to a specific frequency range.

12.  _____________________ ___________________________ is a process where two images at the same location taken on different dates are compared with each other to measure any changes in physical shape, location, or spectral properties.

13. The sensor detectors in a ___________________________ scanner are lined up in a row called a linear array.

14.  ______________________________ remote sensing systems are ground-based sensor systems.

15. The goal of precision farming is to gather and analyze information about the ________________________________ of soil and crop conditions in order to maximize the efficiency of crop inputs within small areas of the farm field.

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