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Earth and Space Science Chapter 7 - Earthquakes Flashcards | StudBud
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Earth and Space Science Chapter 7 - Earthquakes
Earth and Space Science Chapter 7 - Earthquakes
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Answers
1
Earthquakes happen when....
Plate boundaries slip
Mountains fall down
Volcanoes erupt
Cars crash into things
2
Which of these best describes a transform boundary?
A plate boundary characterized by intense earthquakes
A plate boundary where one plate subducts beneath another
A plate boundary where mountains are built
A boundary characterized by heavy volcanic activity
3
These are characterized by shallow, strong earthquakes where tectonic plates slide past one another laterally.
None of the above
Normal Fault
Strike-Slip Fault
Reverse Fault
4
The picture below represents which of the following formations?
Anticline
Syncline
Nonrenewable resources
Renewable resources
5
What is a tsunami?
glaciers melting rising water
A rumble in the ground
The ocean
A wave larger than normal causing destruction
6
Fracture is best described as which of the following?
Temporary change in rock shape
A rock broken by stress
Permanent change in rock shape due to stress
Streess and strain placed on a rock causing it to compress in place
7
What happens during compression?
Pushes rock up and down
Pushes rock together
All of the above
The crust moves sideways
8
All earthquakes cause damage.
False
True
9
Predicting when an earthquake will occur is difficult.
False
True
10
Composition of the planets in our solar system is dependent upon which of the following factors?
The speed of their revolution around the Sun
Whether or not they are in the shadow of the asteroid belt
Their size
Their distance from the Sun and amount of solar energy they receive
11
Which type of boundary has both deep and shallow earthquakes, some of which can be strong?
Transform Boundary
DIvergent Boundary
Convergent Boundary
Strike / Slip Boundary
12
Elastic Rebound Theory states
that continental drift is impossible since the coastlines don't fit exactly
stress builds on a fault until it exceeds its strength, then it ruptures
that faults creep until they suddenly rupture in an earthquake
gravity causes tectonic plates to bounce in place
13
What is plastic deformation?
permanent change
doesnt change
temporary change
breaks completely
14
A fold in rock that is folded downward is called which of the following?
Syncline
Valley
Fault
Anticline
15
Most of the direct damage from an earthquake results from which kind of seismic waves?
Compression waves
P-Waves
Surface Waves
S-Waves
16
A seismograph measures seismic waves.
False
True
17
Which of these best describes Earthquakes?
landforms created by 2 converging continental plates.
Landforms that spew magma coming from the mantle.
Violent shaking in the ground caused by plates moving
Result from divergent plate boundaries spreading the seafloor.
18
What type of fault is a reverse fault?
compression
tension
fault/forces
all of the above
19
Sedimentary rock are always organized in horizontal layers unless acted upon by outside forces.
True
False
20
When does a joint become a fault?
When there is stress
When it stops moving
When the sides move relative to each other
After an earthquake
21
Which of these best describes tension?
Stress that pulls something apart.
Forces all pressing in on the same object
The downward vertical motion of the earth's surface.
The upward vertical motion of the earth's surface.
22
Where do most earthquakes happen?
Northern Hemisphere
Mostly deep below oceans
In the middle of the plates
Along the edges of the tectonic plates
23
What is elastic deformation?
temporary change and returns back to normal
brakes completely
permanent change and does not return to normal
doesnt change at all
24
Rocks coming from which area are of the Earth are cooler, more brittle, and fracture more easily?
Surface
Earth's mantle
Subduction zones
Transform boiundaries
25
What kind of fault is San Andreas fault?
normal fault
convergent fault
strike-slip fault
reverse fault
26
The ______ has the strongest gravity.
Jupiter
Earth
Moon
Sun
27
Which of these represents the point on the fault where rupture or slip occurs?
Fault plane
Fault line
Boundary line
Focus
28
Is this an anticline or syncline?
Neither
Syncline
Both
Anticline
29
What ocean is the most likely to have a tsunami?
Arctic ocean
pacific ocean
Indian ocean
Atlantic ocean
30
Which of these best describes seismic waves?
The energy released from earthquakes
A second, smaller earthquake after the first
Movement of rocks along a joint
Point on the Earth's surface where an earthquake takes place.
31
Earthquakes are a rare occurence on Earth.
True
False
