Mass Movement

Loose material produced by weathering or erosion is known as:

• Granite

• Precipitation

• Regolith

• Landslide

Tick each of the following factors that effect mass movement (HINT: More than one answer!)

• Gravity

• Water content

• Vegetation

• Animals

• Human Activity

The force that attracts everything towards the centre of the earth is known as

• Confluence

• Precipitation

• Gravity

• Contour lines

Which of the following words, could be used to describe gradient?

• Regolith

• Gravity

• Soil creep

• Steepness

Which of the following types of mass movement are slow?

• Bogburst

• Avalanche

• Lahar

• Soil creep

Which of the following are evidence that soil creep is taking place? (HINT: More than one answer!)

• Terracettes

• Regolith

• Curved tree trunks

• Slanted telegraph poles

• Accumulations of snow

Lahars are different to other types of mass movement because:

• They only happen in winter.

• They involve volcanic activity.

• They cannot be controlled by humans.

• They are caused by human activity.

The rapid movement of regolith down a steep slope that has become unstable is known as a:

• Landslide

• Mudslide

• Bogburst

• Avalanche

• Lahar

Why are avalanches sometimes triggered by humans?

• To create a spectacle to attract humans.

• To remove accumulations of snow in a controlled and relatively safe way.

• To scare away large animals.

• To take nice photos of the avalanche.

Define mass movement.

• Rapid movement of regolith

• Movement of regolith downslope due to gravity

• Movement of soil downslope due to gravity

• Movement of anything downslope due to gravity