Earthquakes
Practice Test
1.
What is the crustal part of the lithosphere primarily composed of?
SC.D.1.4.2
a.
iron and nickel
b.
igneous rocks
c.
peridotite
d.
simple oxides
2.
According to the map, at which latitude and longitude is most likely to experience an earthquake?
SC.D.1.4.2
Click here for figure
a.
30
S, 60
W
b.
0
N, 180
W
c.
0
N, 30
W
d.
60
N, 120
E
3.
__________ causes permanent strain.
SC.D.1.4.2
a.
Elastic deformation
b.
Ductile deformation
c.
Tension
d.
Compression
4.
A large ocean wave that is generated by vertical motions of the seafloor during an earthquake is called a
n
__________.
SC.D.1.4.2
a.
tsunami
b.
tidal range
c.
upwelling current
d.
seiche
5.
The record produced by a seismometer is called a __________.
SC.D.1.4.2
a.
seismograph
b.
seismochart
c.
plot
d.
seismogram
6.
__________ is the force per unit area acting on a material?
SC.D.1.4.2
a.
Shear
b.
Strain
c.
Rotation
d.
Stress
7.
What is the study of earthquakes called?
SC.D.1.4.2
a.
geology
b.
seismology
c.
cartography
d.
sedimentology
8.
__________ push and pull rocks in the same direction along which the waves are traveling
SC.D.1.4.2
a.
Surface waves
b.
Secondary waves
c.
Primary waves
d.
Shear waves
9.
What is the probability of earthquake occurrence based on?
SC.D.1.4.2
a.
location of foci
b.
magnitude of P-waves
c.
reoccurrence rates of earthquakes in an area and the rate of strain buildup
d.
strain buildup only
10.
Use the graph to determine how long it took for S-waves to reach Station B after the earthquake.
SC.D.1.4.2
a.
5 minutes
b.
10 minutes
c.
20 minutes
d.
30 minutes
11.
Which wave arrives at a seismic facility first?
SC.D.1.4.2
a.
P-wave
b.
S-wave
c.
surface wave
d.
tidal wave
12.
How many times larger is a magnitude 3 than a magnitude 1 earthquake on the Richter scale?
SC.D.1.4.2
a.
100 000 times
b.
1/10 times
c.
10 times
d.
100 times
13.
What is a rating for an earthquake from the modified Mercalli scale based on?
SC.D.1.4.2
a.
amount of damage
b.
its P-wave
c.
amplitude of the largest wave
d.
frequency of the waves
14.
Where does an earthquake originate?
SC.D.1.4.2
a.
at Earth's inner core
b.
at the epicenter
c.
at the focus
d.
at the P-wave
15.
What does the straight part of a stress-strain graph portray?
SC.D.1.4.2
a.
elastic deformation
b.
failure
c.
ductile deformation
d.
shearing direction
16.
What is a rating from the Richter scale based on?
SC.D.1.4.2
a.
frequency of the waves
b.
size of the largest wave
c.
wavelength of the waves
d.
damage from the largest wave
