Gradients are typically the lowest at a river’s mouth, and highest at its headwaters. The higher the gradient, the faster the stream flows.
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How does the gradient of a river affect its flow quizlet?
The gradient of a river affects the speed of the water’s flow. If the gradient is higher or steeper, the water would flow at a faster rate. On the other hand, a river with a low gradient contains water that flows at a slower rate.
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What does the gradient of a river tell you?
There are several factors that affect the discharge of rivers at any given time. These factors include the size of the drainage area (or watershed), climate, land use/land cover, soil type, and the topography of the watershed.
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How does gradient affect the flow of a river?
Gradients are typically the lowest at a river’s mouth, and highest at its headwaters. The higher the gradient, the faster the stream flows. Channel shape and texture. The shape and roughness of the channel also affect the velocity of the flowing water.
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What is gradient and how does it affect the flow of water?
The gradient is the speed at which water flows from high to low elevation. The higher the gradient, the faster the flow of water and the faster it will reach its lowest point, or “head”. As water flows across a riverbed, it erodes the rock and soil beneath it, creating a downward slope.
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What is the gradient of a river quizlet?
gradient is the steepness of the stream’s slope. near the the head waters, or the beginning of a stream , the gradient gennerally is steep. this area of the stream has a high rate of flow, causes rapid channel erosion. what is stream discharge?
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What does the gradient of a river tell you?
The gradient of a river is a measure of how steeply it loses height. A river with a high gradient loses height quickly and is typically fast flowing and youthful. A river with a very gentle gradient loses very little height and is typically a slow flowing mature river.
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What determines the flow rate of a river?
The flow rate in a river, stream or pipe can be determined by multiplying water velocity by the cross-sectional area. For example, if water was flowing through a 1 foot diameter pipe (area = 0.8 ft2) at 5 feet per second, the flow rate would be 0.8 ft2 x 5 ft/sec = 4 ft3/sec.
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What are two major factors affect the flow of a river?
First is gravity. A river that is fairly flat is likely to have a slower flow velocity than one which is on a steep hill. The second factor is friction. Water moves most quickly when it has less resistance, so the friction of water against rocks slows it down.
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What affects flow velocity in a river?
The velocity will change along the course of any river, and is determined by factors such as the gradient ( how steeply the river is losing height), the volume of water, the shape of the river channel and the amount of friction created by the bed, rocks and plants.
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What does a river gradient determine?
A high gradient indicates a steep slope and rapid flow of water (i.e. more ability to erode); where as a low gradient indicates a more nearly level stream bed and sluggishly moving water, that may be able to carry only small amounts of very fine sediment.
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Why is the gradient important for a river?
Why is stream gradient important? The gradient, or steepness, of a streambed drives many important processes, such as erosion, sediment movement, and the speed of water flow.
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How does the gradient of a river influence its discharge?
Discharge. Several factors cause streams to erode and transport sediment, but the two main factors are stream channel gradient and velocity. The stream gradient is the slope of the river channel. A steeper gradient promotes downward stream erosion.
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What is the meaning of slope of a river?
A river’s slope is usually expressed in feet of vertical drop per mile of longitudinal reach. The changing gradient plotted over the river’s length is the stream’s longitudinal profile. The profile of most streams begins steep and gradually levels out.
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