WorksheetsRiver Key Terms: Processes
Total questions: 12
Worksheet time: 6mins
Which type of erosion occurs when water and air are forced under pressure into small gaps in the river bed. When the pressure is released they expand, cracking the rock.
Hydraulic action
Abrasion
Attrition
Solution
Which type of erosion occurs when bedload is scraped along the river bed and channel in a sandpaper-like action?
Abrasion
Hydraulic action
Attrition
Solution
Which type of erosion is also known as corrosion?
Abrasion
Solution
Hydraulic action
Attrition
Which type of erosion has no direct impact on the river land features as it involves bedload hitting each other to become smaller, smoother and rounder
Attrition
Corrasion
Hydraulic action
Corrosion
Which type of transportation occurs when large boulders are rolled across the river bed because they are too heavy to be lifted?
Traction
Saltation
Solution
Suspension
Which type of transportation occurs when pebbles appear to be playing leapfrog as they are picked up and dropped by the river current?
Traction
Suspension
Solution
Saltation
Which type of transportation is invisible to the naked eye as it involves elements such as iron and magnesium being dissolved in water?
Solution
Suspension
Traction
Saltation
Which type of transportation involves small visible particles being carried in the river's current as they are light?
Suspension
Solution
Saltation
Traction
What is the proper term for the river dropping it's load when it loses the energy to transport it?
Deposition
Deposation
Deposetion
Depossition
Which is greater in the LOWER sections of a river's long profile?
Angle of gradient
Size of bedload particles
Channel bed roughness
Quantity of discharge
Which is greater in the UPPER sections of a river's long profile?
Channel depth
Bedload quantity
Average velocity
Angle of gradient
What % of a river's energy is lost to friction on average?
95%
85%
75%
65%
