Potential And Kinetic Energy Flashcards
1
Q
How is kinetic energy determined
A
By the volume of flowing water (discharge), the slope or channel gradient down which it is flowing and its average velocity
2
Q
What causes an increase in kinetic energy
A
An increase in velocity or discharge
3
Q
What are all channel processes dependant on
A
The amount of energy available (this is a delicate balance)
4
Q
When does erosion occur
A
If there is excess energy after transportation of load
5
Q
When does deposition occur
A
If energy is insufficient to move the load
6
Q
Why does the river channel adjust in shape and size
A
To accommodate changes in the volume of water and sediment
7
Q
How is potential/stored energy fixed
A
By the altitude of the source of the stream in relation to base level
