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WorksheetsMass Movement
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
The movement of rock fragments down an incline as a result of gravity.
a)
Weathering
b)
Mass Movement
c)
Talus
d)
Slip and Slide
2.
A pile of rocks that accumulate at the base of a slope.
a)
Weathering
b)
Mass Movement
c)
Talus
d)
Slip and Slide
3.
Sudden movement of loose rock and soil down a slope of a hill, mountain or cliff.
a)
Creep
b)
Rockslide
c)
Debris flow
d)
Slump
4.
Slow, downhill movement of rock and soil; it will cause fixed objects such as trees, fence posts, light poles in soil to lean downhill.
a)
Slump
b)
Rockslide
c)
Debris flow
d)
Creep
5.
A mass of loosened rock and soil moves downhill in one large chunk.
a)
Slump
b)
Rockslide
c)
Debris flow
d)
Creep
6.
After many years, a gravestone on a hillside falls over. This is an example of ...
a)
creep
b)
rockslide
c)
slump
d)
debris slide
7.
What causes all mass movement
a)
rain
b)
snow
c)
gravity
d)
deforestation
8.
Why is planting trees on a muddy slope a good idea to prevent mudflows and landslides?
a)
The tree roots soak up water
b)
The trees keep the soil in place
c)
Trees add homes for wildlife
d)
Tree roots soak up water and keep soil in place
9.
This is a picture of a
a)
slump
b)
creep
c)
debris flow
d)
rock slide
10.
This is a picture of a
a)
creep
b)
slump
c)
mudflow
d)
landslide
11.
Why do heavy rains help cause mass movement?
a)
They cause the plants to grow
b)
They cause the soil to be wet and heavy
c)
They cause the animals to come out of their homes
d)
They cause strong winds
12.
Slumps are common after a rainfall because the water _________.
a)
reduces friction between soil grains
b)
breaks the underlying rock
c)
causes snow to melt
d)
washes away the vegetation cover
13.
What is the relationship between amount of water and speed of flow in a mass movement?
a)
More water increases the speed
b)
More water decreases the speed
c)
Water doesn't have an effect on the speed
14.
What is the relationship between angle of slope and likelihood of mass wasting occurring?
a)
Steeper slopes makes mass wasting more likely
b)
Steeper slope makes mass wasting less likely
c)
Steepness of slope has no effect on the likelihood of a mass wasting event occurring
15.
Which of the following is NOT a type of mass movement?
a)
Fall
b)
Slide
c)
Flow
d)
Run
16.
How does a soil's porosity affect its tendency to liquefy?
a)
it doesn't
b)
higher porosity= higher likelihood of liquefying
c)
higher porosity= lower likelihood of liquefying
d)
not enough information to tell
17.
Which of the following is not a way to prevent landslides?
a)
building roads
b)
planting trees
c)
building retaining walls
d)
making terraces
18.
The curved/sloped "raw" area leftover after a landslide is called a
a)
scarp
b)
hill
c)
mudflow
d)
lahar
19.
How does heavy rainfall affect soil stability?
a)
Lots of rain = more stable soil
b)
Lots of rain = less stable soil
c)
not enough information to tell
d)
Rainfall doesn't affect soil stability
20.
After a landslide, there is the risk of a second landslide occurring.
a)
True
b)
False
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