AQA Geography Unit 1 May 14th 2013

Well I would talk about all of that but then link it back to the cross profile, for example, in the upper course of river, higher level above sea level, therefore more gravitational potential energy, so rates of vertical erosion are higher than lateral rates, therefore channel will be narrow etc... As you go to the middle course, river effected less by gravity so there is less GPE and so lateral rates of erosion are more dominant than vertical, therefore channel is wider etc...


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Perfecto

xD


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Whats the difference between the meander and meander belt?

Well meander is the natural bend in a river

Meander belt is a phrase I haven't heard of :s is it a question in an exam?

Apparently it's the total width across which the river meanders

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yuep its in the markscheme when u describe a meander

damn! thanks for pointing that out planning to spend tomorrow continuing revision of the rivers/coats topics so I shall make sure I know that by the end of tomorrow

Is there any mention on what it means?


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damn! thanks for pointing that out planning to spend tomorrow continuing revision of the rivers/coats topics so I shall make sure I know that by the end of tomorrow

Is there any mention on what it means?


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Long profile is the profile from source to mouth.

Cross profile is like if you went to one part of the river and cut a slice and you looked at the banks and the curvature of the river etc.

Long profile shows how the gradient/height above sea level changes over the course of the river

Cross profile shows the characteristics of the valley/river channel over the rivers course (for example, upper course = narrow v shaped valley etc....


I think that's right


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Its the june 2010 paper, and 7 marks look at the marksshceme form an answer and tell me what you wrote tomorrow please i need to do other subject revision Can't let it lagg behind anymore

Can you two help?
What are eddie currents? Is it turbulent flow formed from water going over more frictional stuff like rocks?

I googled it came up with random physics coils etc

Can you two help?
What are eddie currents? Is it turbulent flow formed from water going over more frictional stuff like rocks?

I googled it came up with random physics coils etc

Its the june 2010 paper, and 7 marks look at the marksshceme form an answer and tell me what you wrote tomorrow please i need to do other subject revision Can't let it lagg behind anymore

Well I'm not one of the people you asked but I'm doing this section in the exam too! As far as I know Eddy currents are turbulent flow, yeah They're like circular water currents... I think!

Ye turbulent flow is caused due to friction, hence in upper course when there is a lot of friction you get a lot of turbulence.

Eddie Currents - am I right in thinking its just another name for helicoidal flow?


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wait the 7 marker on jun 10 isn't to do with meanders?


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15 markers from where?? I didn't do any practices before the real exam! Sorry!


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Hmm seems legit, anyone want to add to that I think we're right!



Just thinking that in bold right now sherlock


Ok one more question
Explain one way in which people can cause flooding ive got urbanisation etc etc, buttttttttt


"Building bridges may constrict the flow, encouraging the build-up of water and flooding. "

I thought if you build a bridge it goes over the water so it doesn't affect it??? Explain please

nope it is do with cross proifle of rier downstream

ANd one more question try out june 2011 question 1a ii)

Explain the formation of landforms show in in figure 1

It says in the MS

"Level 2 (Clear) 5-7 marks
Seeks to explain the sequence of the formation of the landforms – waterfall and
gorge.
There is some reference to both landforms, although one may be dealt with in
greater detail. There will be greater reference to gorge through the level.
Sequence is clear and there is reference to specific processes, such as
abrasion.
Appropriate geographical terminology is used."

What does that even mean do I have to keep on quoting gorge each time?
Why?????

I thought a gorge was just A deep narrow passage with steep rocky sides; a ravine.

Confused

I guess I'm the Only one doing rivers, coasts, population and energy:') but good luck to everyone!

ooh im doing the same
have'nt started revision yet......terrified