Georgia Science Grade 6

Chapter 11: Earthquakes

CRCT Practice

1
The instrument shown records seismic waves from an earthquake.Which of the following is the name of this instrument?
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A)seismogram
B)seismograph
C)tiltmeter
D)strainmeter
2
Which of the following terms is used to indicate the region where no earthquake waves reach Earth's surface?
A)light zone
B)waveless zone
C)shadow zone
D)seismic zone
3
Which is used to measure magnitude?
A)Richter scale
B)Mercalli scale
C)shadow zone
D)seismic gap
4
Which of the following describes liquefaction?
A)the stopping of S-waves by Earth's molten outer core
B)ice melting during an earthquake to cause flooding
C)seismic waves shaking sediment, causing it to become more liquid like
D)rivers diverted by the motion of earthquake flooding
5
Which letter corresponds to the lower mantle?
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A)F
B)H
C)L
D)J
6
Which of the following describes the motion of secondary waves?
A)a backward rolling and a side-to-side swaying motion
B)a back-and-forth motion that is parallel to the direction of travel
C)vibration in directions that are perpendicular to the direction of wave travel
D)a forward rolling motion
7
What is earthquake intensity?
A)a measure of energy released
B)a measure of seismic risk
C)a measure of damage done
D)a measure of an earthquake's focus
8
What type of fault is shown?
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A)Normal
B)Reverse
C)Strike-slip
D)Compression
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