Rapids are sections of a river where the river bed has a relatively steep gradient, causing an increase in water velocity and turbulence. Rapids are hydrological features between a run (a smoothly flowing part of a stream) and a cascade.
What is the fast flowing part of a river called?
|fast flowing part of a river (6)
|Fast-flowing part of a river (6)
|‘Aerodynamic part of a piston’
Where is a river the fastest?
Toward the middle of a river, water tends to flow fastest; toward the margins of the river it tends to flow slowest. 2. In a meandering river, water will tend to flow fastest along the outside bend of a meander, and slowest on the inside bend.
What is the fastest part of a stream?
If a stream is flowing along straight, the strongest, fastest flow will be in the center of the stream well above the bottom of the bed or channel but below the surface. Friction with the bottom and sides of the channel acts to slow the water against it, and that in turn slows the adjacent water, but not as much.
What are the main parts of a river?
Rivers are split up into three parts: the upper course, the middle course, and the lower course. The upper course is closest to the source of a river. The land is usually high and mountainous, and the river has a steep gradient with fast-flowing water. There is a lot of vertical erosion and weathering.
Where does water in a river flow the slowest?
Usually the speed of river water is fastest in the upper reaches. It becomes slower at the middle reaches and the slowest at the lower reaches. In the same place of the same river, the speed of the current also differs. Where a river runs straight, the current is faster in the center and slower near the riverbank.
What is a fast flowing and agitated part of a river?
Riffles are shallow with fast, turbulent water running over rocks. Runs are deep with fast water and little or no turbulence. When a stream meets up with a huge fallen log, or a set of boulders, the water pours over the top. … These are shallow places where water runs fast and is agitated by rocks.
Which is the slowest river in the world?
The Everglades is the world’s slowest-moving river. When rain fills Lake Okeechobee, in south-central Florida, the lake overflows into the 50-foot wide, 1.5 million acre water filtration system and flows about one meter an hour toward the Gulf of Mexico, at the southern tip of the Sunshine State.
What is the youngest river in the world?
The Roe River is only 201 feet (61 m) long at its longest constant point, and had been named as the World’s Shortest River by the Guinness book of World Records before Guinness eliminated the shortest river category.
What is the deepest river in the world?
From its tributaries to where it meets the Atlantic Ocean, the massive river includes rapids, wetlands, floodplains, lakes and swamps. In addition, the Congo River is the world’s deepest recorded river at 720 feet (220 meters) deep in parts — too deep for light to penetrate, The New York Times reported.
What is the middle of a stream called?
A meander is one of a series of regular sinuous curves, bends, loops, turns, or windings in the channel of a river, stream, or other watercourse. It is produced by a stream or river swinging from side to side as it flows across its floodplain or shifts its channel within a valley.
What is the load of a stream?
Stream load is a geologic term referring to the solid matter carried by a stream (Strahler and Strahler, 2006). Erosion and bed shear stress continually remove mineral material from the bed and banks of the stream channel, adding this material to the regular flow of water.
What is the end of a stream called?
The top end of a stream, where its flow begins, is its source. The bottom end is its mouth.
What are the 3 stages of a river?
3 Stages of a River
- YOUTHFUL STAGE (UPPER COURSE) – V- Shaped Valley > Erosion. …
- MATURE STAGE (MIDDLE COURSE) – Meanders > Erosion and Deposition.
- OLD AGE STAGE (LOWER COURSE) – Floodplains > Deposition. …
- Advantages. Scenic Attraction. …
- Dangers. Flooding – Damage to property, land, animals and homes. …
- Advantages. …
What are the 4 stages of a river?
Nearly all rivers have an upper, middle, and lower course.
- Young River – the upper course.
- Middle Aged River – the middle course.
- Old River – the lower course.
What is a river bed called?
A stream bed or streambed is the channel bottom of a stream or river, the physical confine of the normal water flow. The lateral confines or channel margins are known as the stream banks or river banks, during all but flood stage.