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.
seismogram
c.
seismochart
d.
seismograph
Hint
2.
What type of instrument can measure the vibrations of an earthquake?
SC.D.1.4.2
a.
seismograph
b.
sonar
c.
seismometer
d.
GPS
Hint
3.
What is Earth's core composed of?
SC.D.1.4.2
a.
nickel and silicon
b.
magnesium and silicon
c.
iron and nickel
d.
hydrogen and iron
Hint
4.
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.
10 minutes
b.
20 minutes
c.
30 minutes
d.
5 minutes
Hint
5.
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
Hint
6.
According to the seismogram shown in the figure, which wave is the fastest?
SC.D.1.4.2
a.
S-wave
b.
P-wave
c.
Surface wave
d.
Tidal wave
Hint
7.
What is the study of earthquakes called?
SC.D.1.4.2
a.
cartography
b.
geology
c.
seismology
d.
sedimentology
Hint
8.
Why does knowledge of Earth's interior come from seismic waves?
SC.D.1.4.2
a.
They change speed only when they encounter different materials.
b.
They change speed and direction when they encounter different materials.
c.
They change direction and intensity when they encounter different material.
d.
They change type when they encounter different materials.
Hint
9.
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
Hint
10.
Which waves are called body waves?
SC.D.1.4.2
a.
surface waves and S-waves
b.
P-waves and surface waves
c.
P-waves and S-waves
d.
surface waves only
Hint
