Conceptual Physical Science Explorations
2nd Edition
ISBN: 9780321567918
Author: Paul G. Hewitt, Leslie A. Hewitt, John A Suchocki
Publisher: Addison Wesley
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Textbook Question
Chapter 28, Problem 7TE
What three variables influence the speed of stream flow?
Expert Solution & Answer
To determine
The three variables that influence the speed of stream flow.
Answer to Problem 7TE
The three variables that influence the speed of stream flow are stream gradient, stream discharge, and channel geometry.
Explanation of Solution
The variables that are responsible for the influence of the streamflow speed are channel geometry, stream discharge, and stream gradient. Stream discharge is the amount of water that crosses a given point in a particular time period. The speed of streamflow varies linearly to the stream discharge. Moreover, the area of the stream is kept constant, and discharge is increased, the speed also increases.
Channel geometry provides a description of shape of the channel. It greatly influences the amount of discharge that can be carried by a channel and the speed of the stream. If the area of a channel is more, it can carry more discharge. Also, for the same discharge, if the area is less, then the stream's speed will be more.Stream gradient, or also known as steepness, refers to the slope of the channel stream. The stream speed will be more when the gradient is steep, as the effect of gravity will be greatest. Therefore, the gradient of a stream greatly influences the stream speed.
Conclusion:
Therefore, the three variables that influence the speed of stream flow are stream gradient, stream discharge, and channel geometry.
Chapter 28 Solutions
Conceptual Physical Science Explorations
Ch. 28 - Prob. 1RQCh. 28 - As water is precipitated onto the land, where does...Ch. 28 - Prob. 3RQCh. 28 - If a hole is dug in the unsaturated zone, does it...Ch. 28 - Prob. 5RQCh. 28 - Prob. 6RQCh. 28 - How does rainwater become acidic? How does this...Ch. 28 - Name three erosional features caused by...Ch. 28 - What is the difference between a cave and a...Ch. 28 - Prob. 10RQ
Ch. 28 - What happens to stream speed when the discharge of...Ch. 28 - Prob. 12RQCh. 28 - Prob. 13RQCh. 28 - Prob. 14RQCh. 28 - What is a delta?Ch. 28 - Prob. 16RQCh. 28 - Prob. 17RQCh. 28 - Prob. 18RQCh. 28 - Prob. 19RQCh. 28 - Prob. 20RQCh. 28 - Prob. 1TECh. 28 - Prob. 2TECh. 28 - In a confined aquifer, the water in a well can...Ch. 28 - Prob. 4TECh. 28 - Prob. 5TECh. 28 - What happens to stream speed if the discharge in a...Ch. 28 - What three variables influence the speed of stream...Ch. 28 - Prob. 8TECh. 28 - In the formation of a river delta, why are larger...Ch. 28 - Prob. 10TECh. 28 - Prob. 11TECh. 28 - Prob. 12TECh. 28 - Prob. 13TECh. 28 - Prob. 14TECh. 28 - Prob. 15TECh. 28 - Prob. 16TECh. 28 - What happens to stream speed if discharge doubles...Ch. 28 - Prob. 18TECh. 28 - Prob. 19TECh. 28 - Prob. 20TECh. 28 - Prob. 1TSCh. 28 - A particular stream widens as it progresses...Ch. 28 - If the water table at location X is lower than the...Ch. 28 - As a stream moves from a location where gradient...Ch. 28 - Prob. 2RATCh. 28 - The work of surface water does all of the...Ch. 28 - The maximum amount of water a particular soil can...Ch. 28 - Prob. 5RATCh. 28 - Sand dunes form as wind (a) disperses sand. (b)...Ch. 28 - Prob. 7RATCh. 28 - Prob. 8RATCh. 28 - Snow converts to glacial ice when subjected to (a)...Ch. 28 - Underground water in the saturated zone is called...
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