WITH 100% CORRECT ANSWERS
Define 'system' - correct answer A type of model. An assemblage of interrelated parts that work together by
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way of some driving process.
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Inputs into a pond system - correct answer Precipitation, leaves, seeds, sunlight
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Flows/transfers into a pond system - correct answer Infiltration, photosynthesis, transpiration
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Stores in a pond system - correct answer Water, soil, plants
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Outputs in a pond system - correct answer Water infiltrating soil, evaporation, seed dispersal
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, Dynamic equilibrium meaning - correct answer Balance between inputs + outputs, stores stay the same
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Positive feedback definition - correct answer The effects of an action are amplified by its knock-on effects.
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Negative feedback definition - correct answer The effects of an action are nullified by its knock-on effects
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Inputs into a coastal system - correct answer Waves, wind, tides, sediment, currents, sea level change, biogenic
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inputs
Processes within a coastal system - correct answer LSD, deposition, erosion
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Outputs within a coastal system - correct answer Spits, headlands, stacks, cliffs, sand dunes, salt marshes,
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beaches, arches, loss of wave energy r r r r r
Erosion definition - correct answer The wearing away of the Earth's surface by the mechanical action of
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processes such as glaciers, wind, rivers, marine waves and wind.
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Fetch definition - correct answer The distance of open water which a wind blows uninterrupted by major land
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obstacles. This determine the magnitude and energy of a wave reaching shore.
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Mass movement definition - correct answer The movement of material downhill under the influence of
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gravity.
Weathering definition - correct answer The disintegration of rocks in situ until it is moved by later erosional
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processes. Can be mechanical, biological or chemical. r r r r r r
Sources of energy (wind) - correct answer Movement of air from high pressure to low pressure (greater
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pressure gradient, greater wind speed). Wind direction= where wind is blowing from, prevailling wind= main
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wind direction in an area.
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Sources of energy (waves) - correct answer Wind causes waves on ocean surface, wind transfers energy to the
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water through friction between air molecules + water molecules .
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