AQA A-LEVEL
GEOGRAPHY(COAS
TS) EXAM
PREP/COMPREHEN
SIVE STUDY
GUIDE/ACTUAL
EXAM QUESTIONS
WITH EXPERT
VERIFIED
SOLUTIONS)/NEWE
ST UPDATE
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Terms in this set (107)
sediment can be brought into
the system in various ways.
Inputs
Energy inputs come from wind,
waves, tides and currents.
e.g. sediment can be washed
Outputs out to sea or deposited further
along the shore.
, e.g. processes such as erosion,
Flows/Transfe weathering, transportation and
rs deposition can move sediment
within the system.
Stores/Comp landforms such as beaches,
onents dunes and spits
when the effects of an action
Negative
are cancelled out by its
Feedback
subsequent knock-on effects.
when the effects of an action
Positive are amplified or multiplied by
Feedback subsequent knock-on effects
(a loop/cycle).
- Wind
Sources of - Wave
energy - Tidal
- Currents
, - created by the frictional drag
of the wind over the water.
- effect of wave depends on
height. height is determined by
wind speed and fetch of the
wind.
- waves break as they
approach the shore. Friction
Wave Energy with the sea bed slows the
bottom of the waves.
Size of wave depends on 3
factors:
- Distance wave has travelled
- Time wind has been blowing
- Strength of the wind
height difference between a
Wave height wave crest and the
neighbouring trough
distance between successive
Wavelength
crests
time between one crest and
Wave
the following crest passing a
frequency
fixed point
, - swash greater then backwash
- weak backwash, low-energy
deposition
- form beaches
Constructive - long, not very high max 1m
waves - frequency 6-9/minute
- form in calm conditions with
light winds
- leads to formation of ridges
(berms)
- backwash greater than swash
- remove material from the
beach
- erode the coastline
Destructive
- 2-3m in height and steep
waves
- frequency of 11-15/minute
- form in stormy conditions
- may form a ridge called a
storm beach
GEOGRAPHY(COAS
TS) EXAM
PREP/COMPREHEN
SIVE STUDY
GUIDE/ACTUAL
EXAM QUESTIONS
WITH EXPERT
VERIFIED
SOLUTIONS)/NEWE
ST UPDATE
Leave the first rating
Save
Terms in this set (107)
sediment can be brought into
the system in various ways.
Inputs
Energy inputs come from wind,
waves, tides and currents.
e.g. sediment can be washed
Outputs out to sea or deposited further
along the shore.
, e.g. processes such as erosion,
Flows/Transfe weathering, transportation and
rs deposition can move sediment
within the system.
Stores/Comp landforms such as beaches,
onents dunes and spits
when the effects of an action
Negative
are cancelled out by its
Feedback
subsequent knock-on effects.
when the effects of an action
Positive are amplified or multiplied by
Feedback subsequent knock-on effects
(a loop/cycle).
- Wind
Sources of - Wave
energy - Tidal
- Currents
, - created by the frictional drag
of the wind over the water.
- effect of wave depends on
height. height is determined by
wind speed and fetch of the
wind.
- waves break as they
approach the shore. Friction
Wave Energy with the sea bed slows the
bottom of the waves.
Size of wave depends on 3
factors:
- Distance wave has travelled
- Time wind has been blowing
- Strength of the wind
height difference between a
Wave height wave crest and the
neighbouring trough
distance between successive
Wavelength
crests
time between one crest and
Wave
the following crest passing a
frequency
fixed point
, - swash greater then backwash
- weak backwash, low-energy
deposition
- form beaches
Constructive - long, not very high max 1m
waves - frequency 6-9/minute
- form in calm conditions with
light winds
- leads to formation of ridges
(berms)
- backwash greater than swash
- remove material from the
beach
- erode the coastline
Destructive
- 2-3m in height and steep
waves
- frequency of 11-15/minute
- form in stormy conditions
- may form a ridge called a
storm beach
