A graded profile
A graded stream= a long profile in equilibrium with the general slope of the landscape.
A graded profile = concave + smooth.
Stream's maintain their grade= a balance between erosion + transportation + deposition.
Erosion= removes material - bumps in the profile+ deposition fills in dips.Potential and kinetic energy
Precipitation - deposits it on an upland= possesses potential energy/ energy of position.
Water begins to flow down hill= potential energy =converted - kinetic energy/ energy of motion (turbulence+ friction within the moving water = kinetic energy.)
Kinetic energy= water erodes away the surface of the stream channel it is passing through + moves sediments along the stream bed= the river ends in a standing body of water (lake)= energy = converted- thermal energy/ heat energy.
This heat energy= spread through the environment= most degraded form of energy + cannot accomplish anything.
Potential Energy → Kinetic Energy → Heat Energy
Kinetic energy to heat energy= performs work, i.e. the application of force over distance= physical work- moves the water + forms the river into what we see.'
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