Earthquakes
Practice Test
1.
Earthquakes occur when rocks __________.
a.
bend
b.
break
c.
stretch
d.
compress
Hint
2.
__________ faults are formed by forces of tension.
a.
Normal
b.
Strike-slip
c.
Reverse
d.
Compression
Hint
3.
Which type of seismic wave travels the fastest?
a.
secondary
b.
tsunami
c.
primary
d.
surface
Hint
4.
When __________ occurs due to shaking from an earthquake, solids like wet soil can act more like liquids.
a.
petrification
b.
elasticity
c.
Moho
d.
liquefaction
Hint
5.
Readings need to be taken from at least __________ to determine the origin of an earthquake.
a.
one station
b.
three stations
c.
two stations
d.
four stations
Hint
6.
The San Andreas Fault is the largest fault of this kind in California.
a.
strike-slip
b.
reverse
c.
normal
d.
compression
Hint
7.
Earthquakes are more likely to occur in __________.
a.
every location equally
b.
northern Africa
c.
northern Russia
d.
western South America
Hint
8.
A __________ is used to measure seismic waves.
a.
barometer
b.
seismologist
c.
seismogram
d.
seismograph
Hint
9.
Which wave type can pass through the solid inner core?
a.
secondary
b.
seismic
c.
primary
d.
surface
Hint
10.
Mountains are formed on the __________.
a.
inner core
b.
upper mantle
c.
outer core
d.
crust
Hint
11.
Rocks can break when the __________ is exceeded.
a.
elastic limit
b.
fault line
c.
elastic deformation
d.
plate boundary
Hint
12.
The place where an earthquake originates is called the __________.
a.
tsunami
b.
epicenter
c.
fault line
d.
focus
Hint
13.
Forces of __________ result in rocks being stretched apart.
a.
tension
b.
shear
c.
normal
d.
compression
Hint
14.
Which layer of Earth is plasticlike?
a.
crust
b.
inner core
c.
outer core
d.
upper mantle
Hint
15.
The __________ of an earthquake is located on Earth's surface directly above the earthquake's origin.
a.
epicenter
b.
seismogram
c.
focus
d.
seismic point
Hint
16.
__________ waves produce the most earthquake destruction.
a.
Secondary
b.
Primary
c.
Surface
d.
Tsunami
Hint
17.
In the shadow zone, seismic waves are __________.
a.
speeding up
b.
slowing down
c.
not detected
d.
disappearing
Hint
18.
One rock surface hanging over an adjacent rock surface might indicate that __________ fault action has occurred.
a.
normal
b.
strike-slip
c.
reverse
d.
compression
Hint
19.
What happens as seismic waves reach the Mohorovicic discontinuity, or Moho?
a.
They speed up because they are moving to a less dense layer.
b.
They slow down because they are moving to a denser layer.
c.
They slow down because they are moving to a less dense area.
d.
They speed up because they are moving to a denser layer.
Hint
20.
A(n) __________ is caused by underwater earthquakes.
a.
Moho
b.
epicenter
c.
tsunami
d.
seismogram
Hint
