WorksheetsEarthquakes and Volcanoes
Total questions: 31
Worksheet time: 50mins
Name
Class
Date
1.
What are the fastest body waves?
a)
P waves
b)
T waves
c)
S waves
d)
Q waves
2.
At what location does the first motion of an earthquake occur
a)
the focus
b)
the seismic gap
c)
the mantle
d)
the epicenter
3.
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
4.
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
5.
Deep focus earthquakes are most likely to have occurred at
a)
collision boundaries
b)
diverging boundaries
c)
sliding boundaries
d)
subduction boundaries
6.
Which wave is moves perpendicular to the motion at right angles?
a)
P
b)
S
c)
Surface
d)
Normal
7.
Which wave arrives second to the seismic station?
a)
P - Primary
b)
S- Secondary
c)
Surface
d)
N-Normal
8.
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
9.
A sudden release of energy from plate movement creating shaking and trembling is known as:
a)
seismic wave
b)
earthquake
c)
focus
d)
epicenter
10.
The point on the surface directly above the focus:
a)
earthquake
b)
seismic waves
c)
seismographic station
d)
epicenter
11.
At what location does the first motion of an earthquake occur
a)
the focus
b)
the seismic gap
c)
the mantle
d)
the epicenter
12.
Most of the earthquakes in Japan are a result of one plate sinking under another. This is a result of what kind of boundaries?
a)
convergent
b)
divergent
c)
transform
d)
sliding
13.
Which type of seismic wave is moves back and forth?
a)
Surface Wave
b)
Seismic Wave
c)
S-Wave
d)
P-Wave
14.
Magnitude is a measure of
a)
how much magma is released from a volcano
b)
how much energy is released from an earthquake
c)
the distance from the midpoint to the crest of a wave
d)
the thickness of a layer in Earth
15.
Earthquakes and volcanoes are most likely found in which locations?
a)
at plate boundaries
b)
in oceans
c)
in the middle of continents
d)
in the middle of plates
16.
Developed to rate earthquakes according to the level of damage at a given pace:
a)
Mercalli scale
b)
Richter scale
17.
Scientists determine what Earth’s interior looks like by using:
a)
Volcanoes
b)
Seismic Waves
c)
Continental Drift
d)
Convection Currents
18.
The instrument that scientists use to record seismic waves is called a(n)
a)
epicenter scale
b)
seismic wave gauge
c)
seismograph
d)
radio graphic device
19.
Scientists use the P and S time difference to tell_____.
a)
the strength of the surface wave
b)
the magnitude of quake
c)
the distance of the epicenter from station
d)
if quake occurred
20.
What does an underwater earthquake cause?
a)
Tornado
b)
Tsunami
c)
Landslide
d)
Mid ocean Ridge
21.
Which of the following is not a factor that can affect magma composition
a)
lacosity
b)
mineral content
c)
silica
d)
water content
22.
This volcano is most likely which type of volcano?
a)
Felsic
b)
Composite
c)
Shield
d)
Cinder cone
23.
What is a determining factor in which type of eruption will occur?
a)
the chemistry of the magma
b)
the size of the mountain
c)
the climate around the volcano
d)
the number of people living near the volcano
24.
When ash, cinders, and bombs build up in a steep pile around a volcano's vent, the result is a
a)
cinder cone volcano
b)
shield volcano
c)
composite volcano
d)
dormant volcano
25.
Before lava reaches the surface it is called
a)
rock
b)
magma
c)
volcanic ash
d)
liquid fire
26.
The main hazard from a quiet volcanic eruption is
a)
volcanic bombs
b)
lava flows
c)
volcanic cinders
d)
volcanic ash
27.
The formation of the Hawaiian Islands is one example of
a)
volcanoes forming over a hot spot
b)
volcanoes forming along a plate boundary
c)
the Ring of Fire
d)
continental drift
28.
Where do most volcanoes occur?
a)
Hawaii
b)
Indonesia
c)
Ring of Fire
d)
The Atlantic Ocean
29.
Not all volcanoes form along plate boundaries
a)
true
b)
false
30.
A composite volcano is tall, cone-shaped, and made up of alternating layers of lava and ash.
a)
true
b)
false
31.
Which is NOT a characteristic of magma from an explosive eruption?
a)
thick and sticky
b)
high in silica
c)
flows easily
100 %
