Section #: 19.2
Seismic Waves and Earth's Interior
Practice Test
1.
The record produced by a seismometer is called a __________.
SC.D.1.4.2
a.
plot
b.
seismochart
c.
seismograph
d.
seismogram
Hint
2.
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.
20 minutes
c.
10 minutes
d.
30 minutes
Hint
3.
What is the crustal part of the lithosphere primarily composed of?
SC.D.1.4.2
a.
igneous rocks
b.
iron and nickel
c.
simple oxides
d.
peridotite
Hint
4.
What is Earth's core composed of?
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a.
iron and nickel
b.
magnesium and silicon
c.
hydrogen and iron
d.
nickel and silicon
Hint
5.
According to the seismogram shown in the figure, which wave is the fastest?
SC.D.1.4.2
a.
S-wave
b.
Tidal wave
c.
Surface wave
d.
P-wave
Hint
6.
What type of instrument can measure the vibrations of an earthquake?
SC.D.1.4.2
a.
sonar
b.
seismograph
c.
seismometer
d.
GPS
Hint
7.
Why does knowledge of Earth's interior come from seismic waves?
SC.D.1.4.2
a.
They change direction and intensity when they encounter different material.
b.
They change speed only when they encounter different materials.
c.
They change speed and direction when they encounter different materials.
d.
They change type when they encounter different materials.
Hint
8.
Which waves are called body waves?
SC.D.1.4.2
a.
surface waves and S-waves
b.
P-waves and S-waves
c.
P-waves and surface waves
d.
surface waves only
Hint
9.
Which wave arrives at a seismic facility first?
SC.D.1.4.2
a.
tidal wave
b.
P-wave
c.
surface wave
d.
S-wave
Hint
10.
What is the study of earthquakes called?
SC.D.1.4.2
a.
geology
b.
sedimentology
c.
seismology
d.
cartography
Hint
