Forces in Earth's Crust — Unit test Answers

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The image below shows a fault.

Question illustration
A
The hanging wall and footwall both move vertically.
B
Shearing is causing the plates to slide past each other.
C
The hanging wall moves down in relation to the footwall.
D
Compression is causing the plates to move toward each other.
2
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The image shows a mountain peak in Asia.

Question illustration
A
compression
B
gravity
C
shearing
D
tension
3

Which type of stress causes rocks to fold?

A
compression
B
shearing
C
strike-slip
D
tension
4

The image shows mountains in Alaska.

Question illustration
A
A syncline is visible.
B
An anticline is visible.
C
These mountains show no evidence of folding.
D
These mountains likely formed from normal faults.
5

A scientist observes a fault where the hanging wall has moved upward relative to the footwall. Which type of fault is the scientist observing?

A
normal
B
reverse
C
strike-slip
D
horizontal
6

Which best describes how wedge basins form?

A
When two plates move apart, the weaker part of Earth’s crust moves down at normal faults where sediments are deposited until a basin forms.
B
At the area where two bent plates slide past each other, a depression forms where sediments are deposited.
C
When two plates collide, the non-subducting plate scrapes the subducting plate and forms a depression where sediments gather.
D
At the area of a depression between two plates, sediments continue to get deposited and become compacted.
7

Which forms as a result of compressional stress?

A
anticline and syncline
B
normal fault
C
strike-slip fault
D
fault-block mountain
8

What type of stress occurs when a rock mass is pushed in parallel and opposite directions?

A
compression
B
faulting
C
shearing
D
tension
9

In which type of fault is the hanging wall above the footwall?

A
normal
B
reverse
C
strike-slip
D
horizontal
10

The image shows a type of stress.

Question illustration
A
hanging
B
normal
C
reverse
D
strike-slip
11

Where does shearing often occur?

A
along a normal fault
B
along a reverse fault
C
at a transform boundary
D
at a divergent boundary
12

Which type of basin forms at transform boundaries?

A
rift
B
wedge
C
arc
D
strike-slip
13

Which type of stress causes fault-block mountains?

A
compression
B
shearing
C
subduction
D
tension
14

What type of stress occurs when one plate pushes against another?

A
compression
B
faulting
C
shearing
D
tension
15

Which feature is most likely found at a divergent boundary?

A
fold
B
plateau
C
fault-block mountain
D
anticline or syncline
16

How is a plateau different from a fault-block mountain?

A
A plateau forms due to shearing, and a fault-block mountain does not.
B
A fault-block mountain forms from a reverse-fault, and a plateau does not.
C
A plateau forms when a flat block of rock is uplifted, and a fault-block mountain does not.
D
A fault-block mountain forms when the center block is uplifted, and plateau does not.
17

The image is of the formation of a fault-block mountain.

Question illustration
A
The crust is compressed.
B
The crust does not spread apart.
C
The center block is forced upward.
D
The hanging walls from the two parallel faults slip down.
18

A scientist observes a feature where the hanging wall moved downward relative to the footwall. Which feature does the scientist observe?

A
anticline
B
syncline
C
normal fault
D
strike-slip fault
19

Which type of basin forms at divergent boundaries?

A
rift
B
strike-slip
C
wedge
D
arc
20

At which type of boundary does tension often occur?

A
convergent
B
divergent
C
subduction
D
transform

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