Geomorphology

Question 1

What is geomorphology?

Answer 1

the science concerned with the form of the land surface and the processes which created it

Question 2

Are landscaped static or dynamic?

Answer 2

All landscapes are dynamic

Question 3

List 3 key driving forces in geomorphology

Answer 3

Gravitational force
Shearing force
Lift and buoyancy

Question 4

List 2 key resisting forces

Answer 4

Gravitational

Intrinsic strength

Question 5

How is weight calculated ?

Answer 5

W = mass x gravity is

Question 6

Describe action of resisting forces on steep slopes?

Answer 6

More force is making it roll down hill rather than keeping the object on the slope

Question 7

What is critical shear stress in liquids

Answer 7

The point at which shear stress is sufficient to enable movement of particles

Question 8

Describe shear stress

Answer 8

Force between a moving object and a stationary object

A force exerted by the shearing action if a mass moving across a surface

Question 9

Name 4 factors which shear stress is dependent on

Answer 9

Gravity
Density of fluid
Depth of flow
Slope

Question 10

Describe the action of resisting forces on shallow slopes

Answer 10

Resisting force dominate, more gravitational force holding it to the slope than pulling it down