Save
Busy. Please wait.
Log in using Clever
or

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know
Remaining cards (0)
Know
0:00
share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Coasts

QuestionAnswer
Wave frequency the number of waves per minute.
Wave crest the highest part of the wave.
Wave trough the lowest part of the wave.
Wave steepness the ratio of the wave height to the wave length (note that this cannot be steeper than 1:7 as this is where the wave breaks).
Wave period the time taken for a wave to travel between one wave length.
Wave energy E is proportional to LH^2 where L is wavelength and H is height. A small increase in wave height will result in a large increase in energy.
Diurnal range the difference between the lowest temperature and the highest temperature in a 24-hour period.
Solution the dissolving action of water on rocks, particularly carbonate rocks such as limestone.
Acid rain a broad term used to describe several ways that acids fall out of the atmosphere. A more precise term is acid deposition, which has two parts: wet and dry.
Wind velocity wind speed.
Duration period of time during which the wind blew.
Fetch Distance over which the wind blew.
Wavelength the distance between two successive crests.
Swash A translation of energy up in the beach in the form of a mass of foaming water.
Backswash The return of water back down the beach as a result of gravitational pull.
Constructive waves associated with swell and are characterised by longer wavelengths and lower height and wave frequency. The swash on these waves is greater than the backswash, as the spilling water has time to percolate on the beach.
Destructive waves more often associated with storm conditions and have a steeper, shorter wavelength with more frequent waves. They produce a strong backswash which is capable of moving sediment downslope and impeding incoming waves.
Freeze-thaw is the process whereby water repeatedly freezes and melts within joints/ cracks in rocks in areas where the diurnal range hovers around 0oC, eg.g. in the Scottish Highlands.
Pressure release pccurs when jointed rocks have the pressure of any overburden removed and expansion can further open up joints/ cracks to weathering.
Biological weathering refers to weathering resulting from organic agents.
Chemical weathering tends to occur where there is alternate wetting and drying and/or towards the bottom of slopes where material and moisture often accumulate.
Oxidation where rocks are exposed to oxygen in the air or water, e.g. where ferrous iron is changed by the addition of oxygen into the ferric state and appears a rusty colour.
Hydration where rocks that may include salts absorb water and swell, making them more susceptible to decomposition.
Hydrolysis a common form of weathering leading to decomposition. The H positive and OH negative ions in water combine with ions in the minerals found in rocks.
Carbonation carbon dioxide in solution foundin rainwater produce carbonic acid. This attacks the calcium carbonate found in limestones and many other rocks, with the soluble product being washed away.
Longshore drift the current resulting from wave crests hitting the beach at an angle, which is responsible for moving large amounts of sediment along the coast.
Dunes formed when strong winds lift sediment off the beach and spit and propel them inland.
Bar when a spit develops to cut off an embayment, perhaps creating a lagoon.
Tombolo where ridges of sand and shingle link the coast to an island.
Embryo dunes the first dunes to develop.
Isotatic change land rise or fall.
Eustatic change rising sea level.
Created by: apeploe
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards