Section #: 2.3
Remote Sensing
Practice Test
1.
What is the electromagnetic spectrum?
a.
frequencies measured by satellites
b.
energy emitted from Earth
c.
visible light
d.
the arrangement of electromagnetic radiation
Hint
2.
How many satellites are in the GPS?
a.
50
b.
24
c.
4
d.
6
Hint
3.
How does a Landsat satellite differentiate between objects on Earth's surface?
a.
Landsat satellites take pictures using visible light.
b.
Landsat uses a single detector to measure the intensities of energy.
c.
Landsat measures the longest frequencies of electromagnetic radiation from Earth.
d.
Features on Earth radiate warmth at different frequencies, which show up as different colors on Landsat images.
Hint
4.
The process of collecting data far above Earth's surface is called __________.
a.
electromagnetic sensing
b.
topographic studies
c.
mapmaking
d.
remote sensing
Hint
5.
What does GPS stand for?
a.
Geographic Positioning System
b.
Global Potential Satellite
c.
Global Positioning System
d.
Geodial Position Satellite
Hint
6.
How does the satellite Topex/Poseidon map ocean features?
a.
ultraviolet rays
b.
radar
c.
visible light
d.
X rays
Hint
7.
Which method uses sound waves for remote sensing?
a.
sonar
b.
GPS
c.
Topex/Poseison satellite
d.
Landsat satellite
Hint
