Dynamic Equilibrium

Question 1

What is Dynamic equilibrium?

Answer 1

A state of equilibrium where environmental conditions fluctuate around an average that is gradually changing itself, a state of balance between inputs and outputs

Question 2

What is positive feedback?

Answer 2

A response to a system change, that enhances the changing leading to a new state of equilibrium

Question 3

What is negative feedback?

Answer 3

A response to a system change that aids recovery of the original state of equilibrium

Question 4

What are the four factors of equilibrium that exist in all beaches

Answer 4

• the supply of sand
• the energy of waves
• changes in sea-level
• the location of the shoreline

Question 5

How quick can beaches and hard rock landforms adjust to energy inputs

Answer 5

Beaches it takes just a few hours
Hard rock landforms may take thousands of years

Question 6

Where can beaches only exist?

Answer 6

Where a delicate dynamic equilibrium exists between the amount of sand supplied to the beach and the inevitable losses by wave erosion

Question 7

How does sand protect the shore?

Answer 7

By stopping wave attack and Erosion

Question 8

What factors change coastlines?

Answer 8

• periods of increased rainfall
• storminess
• sea level increases

Question 9

What is dynamic equilibrium affected by?

Answer 9

• Sand supply
• The waves
• The sea level
• The location of the shoreline