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Does a stream's velocity increase or decrease downstream?

A stream's velocity typically increases downstream due to the accumulation of water volume and slope gradient. This leads to higher flow rates and faster-moving water.


Why does average velocity increase downstream?

Average velocity increases downstream because of the overall flow of the river. As the river moves in the downstream direction, the volume of water increases due to tributaries adding water along the way. This increase in water volume results in a higher average velocity as the same amount of water needs to flow through a larger channel.


Why does the velocity of the river increases downstream?

The velocity of the river increases downstream due to the cumulative effect of gravity pulling the water downhill. As the river flows downstream, it collects water from tributaries and gains more volume, leading to an increase in velocity to accommodate the larger volume of water. Additionally, friction between the water and riverbed is reduced downstream, allowing the water to flow more freely and pick up speed.


Why does the water depth increase downstream?

Water depth increases downstream due to a combination of factors such as the accumulation of flow from tributaries, reduced friction along the river bed, and the energy gradient of the river. As the river flows downstream, it gains more volume and velocity, resulting in higher water depth.


Stream gradient role on stream velocity?

Stream gradient, or the slope of the stream channel, affects stream velocity by influencing the speed at which water flows downstream. A steeper stream gradient typically results in a faster water flow velocity, as the force of gravity pulls water downhill more strongly. Conversely, a gentler stream gradient leads to slower water flow velocity.


Why does river velocity increase downstream?

Velocity increases in a downstream direction because more sources of water combine depth and width. A constant flow of water would result in a higher river velocity.


Does the volume of water in a river increase further downstream?

yes


Which graph best represents the relationship between a streams velocity and the size of the largest particles it can carry downstream?

A logarithmic graph would best represent the relationship between stream velocity and the size of particles it can carry downstream. As velocity increases, the stream can carry larger particles due to increased erosion and transport capacity. However, there will be a limit to the size of particles carried downstream as velocity continues to increase.


How does the gradient of a river affect its flow?

The gradient of a river is mostly flat or downhill which means that as the water flows it is affected by gravity. The steeper the gradient goes downhill, the more gravity will affect the water which will make the water flow faster (increases the velocity).


Why does the valley width increase as you go downstream?

The water is running faster and has eroded the bank.


A boat moves at a speed of 15 kmh in still water. The river it is traveling in flows at a rate of 3 kmh downstream. What is the velocity of the boat if it travels downstream What is the velocity of th?

If the boat is moving downstream, you add the speed of the boat with the speed of the river flow. Therefore, the velocity of the boat downstream is 18 km/h. If the boat is moving upstream, you subtract the river flow speed from the boat's speed, so in this case, it would be 12 km/h.


Why does the rivers wetted perimeter increase as we travele downstream?

Because the Width and Depth both increase downstream. This means the wetted perimeter will also increase.