Mass movement

Question 1

Mass movement factors

1. Level of ________ within sediment
2. Height of ____
3. Angle of ____
4. Grain ___ within sediment
5. Temperature
6. Level of ____

Answer 1

1. Cohesion
2. Slope
3. Slope
4. Size
5. Saturation

Question 2

Name the six mass movement factors

Answer 2

Mass movement factors

1. Level of cohesion within sediment
2. Height of slope
3. Angle of slope
4. Grain size within sediment
5. Temperature
6. Level of saturation

Question 3

What are the five types of mass movement?

Answer 3

1. Landslides
2. Rock falls
3. Mudflows
4. Rotational slumping
5. Soil creep

Question 4

True or false: Landslides occur on cliffs made from hard rock

Answer 4

False- Soft rock

Question 5

Landslides often occur following heavy ___

Answer 5

Rainfall

Question 6

Landslides occur when soft rock slips as a result of a ___ within it when ___

Answer 6

Failure, Lubricated

Question 7

Rockfalls occur from cliffs ___ by the sea

or on slopes affected by ___ weathering like ____

Answer 7

Undercut, Physical, Freeze-thaw

Question 8

Mudflows

1. __ rain causes lots of ___ material to flow downhill
2. Soil is ___
3. Ground surface layers become __ and flow downhill

Answer 8

1. Heavy, fine
2. Saturated
3. Fluid

Question 9

Name 3 factors that affect mudflows specifically

Answer 9

1. Slope angle
2. Geology
3. Level of saturation

Question 10

Rotational slumping is when __ rock overhangs___ rock so the cliff legit slumps if it’s excessively ___

Answer 10

Soft, Hard, Lubricated

Question 11

Soil creep is when there is an almost imperceptible but ____ movement of soil particles downslope.

Answer 11

Countinuous