# GST 101 - Module 6 Self-assessment Quiz

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Quizzes Created: 7 | Total Attempts: 2,216
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Self-assessment quiz for GST 101 - Module 6 - Understanding Remote Sensing and Aerial Photography

• 1.

### The full range of wavelengths is called the magnetic spectrum.

• A.

True

• B.

False

B. False
Explanation
The full range of wavelengths is called the electromagnetic spectrum.

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• 2.

### Objects appear as the color they most absorb.

• A.

True

• B.

False

B. False
Explanation
Objects appear as the color they most reflect.

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• 3.

### RADAR is a well-known active remote sensing system.

• A.

True

• B.

False

A. True
Explanation
Active remote sensing systems, such as RADAR, emit and record energy they produce.

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• 4.

### Image scale is the relative distance on images to distance on the ground.

• A.

True

• B.

False

A. True
Explanation
Knowing the image scale allows for accurate measurements.

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• 5.

### The infrared wavelength is very useful for mapping vegetation.

• A.

True

• B.

False

A. True
Explanation
The infrared wavelength can tell us plant health among other useful observations.

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• 6.

### Scale is always constant on an aerial photograph.

• A.

True

• B.

False

B. False
Explanation
Due to the many types of distortion possible when taking an aerial photograph, scale is variable across an aerial photograph.

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• 7.

### Photointerpretation is the process of converting images to information.

• A.

True

• B.

False

A. True
Explanation
Photointerpretation can produce very useful products, like land use/land cover data sets.

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• 8.

### A stereo model is composed of a single photograph, but taken at an extremely high altitude.

• A.

True

• B.

False

B. False
Explanation
A stereo model requires at least two photographs taken at two slightly different perspectives of the same location.

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• 9.

### Satellite images typically cover a larger area than aerial images.

• A.

True

• B.

False

A. True
Explanation
Because satellites are further away from Earth, their images typically cover a larger area than aerial images.

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• 10.

### For any project size, aerial imagery is always cheaper to obtain than satellite imagery.

• A.

True

• B.

False

B. False
Explanation
For projects that cover a very large area of Earth, satellite imagery may be cheaper to obtain as satellites can cover larger portions of the Earth much quicker than aircraft.

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• Current Version
• Mar 20, 2023
Quiz Edited by
ProProfs Editorial Team
• Sep 18, 2016
Quiz Created by
Rickasmith

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