Earth Science: Geology, the Environment, and the Universe

Section 3: Remote Sensing

Remote Sensing

1
What does GPS stand for?
A)Global Potential Satellite
B)Geographic Positioning System
C)Geodial Position Satellite
D)Global Positioning System
2
How does a Landsat satellite differentiate between objects on Earth's surface?
A)Landsat uses a single detector to measure the intensities of energy.
B)Landsat satellites take pictures using visible light.
C)Features on Earth radiate warmth at different frequencies, which show up as different colors on Landsat images.
D)Landsat measures the longest frequencies of electromagnetic radiation from Earth.
3
How many satellites are in the GPS?
A)4
B)50
C)24
D)6
4
What is the electromagnetic spectrum?
A)visible light
B)frequencies measured by satellites
C)the arrangement of electromagnetic radiation
D)energy emitted from Earth
5
How does the satellite Topex/Poseidon map ocean features?
A)visible light
B)radar
C)X rays
D)ultraviolet rays
6
The process of collecting data far above Earth's surface is called __________.
A)topographic studies
B)remote sensing
C)mapmaking
D)electromagnetic sensing
7
Which method uses sound waves for remote sensing?
A)sonar
B)Landsat satellite
C)Topex/Poseison satellite
D)GPS
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