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WorksheetsEarthquake/Volcano
Total questions: 60
Worksheet time: 2hrs 49mins
Name
Class
Date
1.
What are the fastest body waves?
a)
P waves
b)
T waves
c)
S waves
d)
Q waves
2.
Earthquakes generally occur at plate boundaries, where
a)
stress on rocks is greatest
b)
the most rock is found
c)
stress on rocks is low
d)
magnetic pull is greatest
3.
At what location does the first motion of an earthquake occur
a)
the focus
b)
the seismic gap
c)
the mantle
d)
the epicenter
4.
How do scientists find the epicenter of an earthquake?
a)
by comparing arrival times of P waves and S waves at several seismograph stations
b)
by digging at several locations and comparing data
c)
by comparing departure times of P waves and S waves at several seismograph stations
d)
by reviewing satellite photos of tsunamis
5.
Why do earthquakes usually occur at plate boundaries?
a)
The rock on the edges of tectonic plates is soft and gives in easily to various pressures
b)
Rock in environments near tectonic plate boundaries experience great stress
c)
The boundaries between tectonic plates have been seismically active for millions of years
d)
Rockin environments near tectonic p late boundaries experience little stress
6.
What is the epicenter of an earthquake
a)
the location along a fault where the first motion of an earthquake occurs
b)
a seismic wave tht travels along the surface of Earth
c)
the point on Earth's surface directly above the earthquake's focus
d)
the last place that motion in an earthquake is detected
7.
Which wave is moves perpendicular to the motion at right angles?
a)
P
b)
S
c)
Surface
d)
Normal
8.
Which wave is the most destructive?
a)
P - Primary
b)
S - Secondary
c)
Surface Wave
d)
Normal
9.
Which wave arrives second to the seismic station?
a)
P - Primary
b)
S- Secondary
c)
Surface
d)
N-Normal
10.
These seismic waves compress and expand the ground like an accordion:
a)
p-waves
b)
s-waves
c)
surface waves
d)
z-waves
11.
These seismic waves arrive first to signal an earthquake and can damage buildings.
a)
p-waves
b)
s-waves
c)
surface waves
d)
z-waves
12.
These seismic waves arrive second and can shake the ground violently.
a)
p-waves
b)
s-waves
c)
surface waves
d)
z-waves
13.
These seismic waves can vibrate up and down or side to side at a 90 degree angle to the direction they travel:
a)
p-wave
b)
s-wave
c)
surface wave
d)
z-wave
14.
These seismic waves are slower and arrive last but causes severe damage:
a)
p-waves
b)
s-waves
c)
surface waves
d)
z-waves
15.
P-waves and S-waves are consider this type of wave:
a)
surface
b)
sonic
c)
body
d)
infrared
16.
A sudden release of energy from plate movement creating shaking and trembling is known as:
a)
seismic wave
b)
earthquake
c)
focus
d)
epicenter
17.
The built up movement of plates is released as energy and is carried by these:
a)
earthquakes
b)
seismic waves
c)
focus
d)
epicenter
18.
The point on the surface directly above the focus:
a)
earthquake
b)
seismic waves
c)
seismographic station
d)
epicenter
19.
This word describes the size of the earthquake:
a)
seismograph
b)
magnitude
c)
focus
d)
epicenter
20.
This area is responsible for 90% of all earthquakes in the world and contains numerous faults:
a)
Indian Ocean
b)
English Canal
c)
The Ring of Fire
d)
Mid-Atlantic Ridge
21.
This famous transform fault is located in the western United States creates significant earthquake activity for California
a)
New Madrid
b)
Denali Fault
c)
Ramapo Seismic Zone
d)
San Andreas
22.
A stress force that pulls Earth's crust apart and becomes thin in the middle is known as:
a)
tension
b)
compression
c)
shearing
d)
uplifting
23.
A stress force that pushes a mass of rock in 2 opposite directions causing rock to break, slip apart or change shape:
a)
tension
b)
compression
c)
shearing
d)
uplifting
24.
A break in the rock of the crust where rock surfaces slip past each other; usually occur along plate boundaries:
a)
focus
b)
epicenter
c)
fold
d)
fault
25.
Where is the greatest concentration of deep earthquakes on Earth?
a)
North America
b)
Australia
c)
Antarctica
d)
western part of the Pacific Ocean
26.
Which plate tectonic boundary is associated with the most disastrous earthquakes?
a)
hot spots
b)
convergent boundaries
c)
divergent boundaries
d)
minor faults
27.
Which type of fault is most frequently found at convergent boundary margins?
a)
normal and reverse
b)
strike slip and normal
c)
reverse
d)
strike slip
28.
What is the location on Earth’s surface where the earthquake occurred?
a)
epicenter
b)
P-wave
c)
focus
d)
edge of the quake
29.
Why are earthquakes generally more destructive than volcanoes?
a)
they are caused by plate motions
b)
earthquakes are always accompanied by tsunamis
c)
the area affected by an earthquake is larger
d)
they only occur in populated areas
30.
Which types of magma contains the least amount of SiO2
a)
rhyolitic
b)
andesitic
c)
felsic
d)
basaltic
31.
Rhyolitic magma is rich in _____.
a)
silica
b)
iron
c)
magnesium
d)
sulfur
32.
Which of the following is not a factor that can affect magma composition
a)
lacosity
b)
mineral content
c)
silica
d)
water content
33.
The composition of magma determines its _____.
a)
viscosity
b)
darkness
c)
color
d)
none of the above
34.
Volcanoes that are made of basalt lava flows are called _____.
a)
shield volcanoes
b)
composite volcanoes
c)
stratovolcanoes
d)
cone volcanoes
35.
Volcanoes are common along
a)
convergent plate boundaries.
b)
divergent plate boundaries.
c)
transform plate boundaries.
d)
two of the above
36.
About 75 percent of the world’s volcanoes are found
a)
around the Atlantic Ocean basin.
b)
along the mid-Atlantic ridge.
c)
around the Pacific Ocean basin.
d)
throughout the American Northwest.
37.
A line of volcanic activity that surrounds the Pacific Ocean basin is the
a)
Ring of Fire
b)
Aleutian Islands
c)
Hawaiian Islands
d)
Caribbean Islands
38.
This volcano is most likely which type of volcano?
a)
Felsic
b)
Composite
c)
Shield
d)
Cinder cone
39.
Which of the following factors helps determine whether a volcanic eruption will be violent or relatively quiet?
a)
amt of dissolved gases
b)
temp of magma
c)
composition of magma
d)
all of the above
40.
Which list places the magma types in order of decreasing viscosity (most viscous listed first)?
a)
basaltic, andesitic, rhyolitic
b)
rhyolitic, andesitic, basaltic
c)
andesitic, basaltic, rhyolitic
d)
basaltic, rhyolitic, andesitic
41.
Highly explosive volcanoes tend to have what type of magma?
a)
magma with high silica, high viscosity, and higher gas content
b)
magma with low silica, low viscosity, and lower gas content
c)
magma with low silica, high viscosity, and lower gas content
d)
magma with no silica, high viscosity, and no gas content
42.
Once magma reaches the earth's surface it is called.....
a)
Silica
b)
Rock
c)
lava
43.
Hot spots can occur...
a)
Only at plate boundaries
b)
Far from plate boundaries
c)
Only under the middle of plates
44.
Magma leaves a volcano through a
a)
dike
b)
sill
c)
vent
45.
A volcano that is no longer erupting but likely to erupt again in the future is
a)
Extinct
b)
Dormant
c)
Active
46.
When a volcano erupts quietly, what kind of mountain forms?
a)
A Shield Volcano
b)
Cinder Cone Volcano
c)
Composite Volcano
47.
How well a liquid flows depends on its
a)
Volcano
b)
Viscosity
c)
Pipe
48.
A volcano that no longer will erupt is said to be
a)
Extinct
b)
Dormant
c)
Active
49.
A huge hole that is left behind when a volcano collapses is called a
a)
Batholith
b)
Caldera
c)
Geyser
50.
Which of the following landforms result from volcanic activity?
a)
continental arcs
b)
hotspot islands
c)
island arcs
d)
all of the above
51.
An example of islands that formed over a hotspot are the
a)
Aleutian Islands
b)
Hawaiian Islands
52.
How are seismic waves related to earthquakes?
a)
They begin at the focus
b)
They begin at the epicenter
c)
The are transmitted through air
d)
They are not energy waves from and earthquake
53.
What is one cause of earthquakes?
a)
The Sun's gravity pulling on our Earth.
b)
Tectonic Plates striking and slipping past each other.
c)
The moon phases
d)
Drilling wells
54.
An extinct volcano
a)
Is currently erupting
b)
Is a silent volcano
c)
Is under the ocean
d)
Is a once erupting volcano, but has not erupted in a long time
55.
A huge wave created by an earthquake under the ocean is
a)
syncline wave
b)
tsunami
c)
transverse wave
d)
longitudinal wave
56.
Which volcano is created by the build up of ash, cinders, and bombs?
a)
cinder cone
b)
shield
c)
Hawaii
d)
Composite
57.
What is the minimum number of seismograph stations needed to locate an earthquake epicenter?
a)
1
b)
2
c)
3
d)
1 billion
58.
This kind of volcano alternates between explosive and non-explosive eruptions, it has a wide base, and are very common around the "Ring of Fire".
a)
Shield
b)
composite
c)
cinder cone
59.
This kind of volcano is formed from non-explosive eruptions, they are rounded and very wide but not steep.
a)
shield volcano
b)
cinder cone volcano
c)
composite volcano
60.
A composite volcano is tall, cone-shaped, and made up of alternating layers of lava and ash.
a)
true
b)
false
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