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A river flows through a valley with a gradient of 1:1000. If the river descends

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Question: A river flows through a valley with a gradient of 1:1000. If the river descends 2 meters over a distance of 2000 meters, is the gradient consistent? (2022)

Options:

  1. Yes
  2. No
  3. Not enough information
  4. Depends on the soil type

Correct Answer: Yes

Exam Year: 2022

Solution: 

Gradient = Rise / Run = 2 m / 2000 m = 1:1000, so it is consistent.

A river flows through a valley with a gradient of 1:1000. If the river descends

Practice Questions

Q1
A river flows through a valley with a gradient of 1:1000. If the river descends 2 meters over a distance of 2000 meters, is the gradient consistent? (2022)
  1. Yes
  2. No
  3. Not enough information
  4. Depends on the soil type

Questions & Step-by-Step Solutions

A river flows through a valley with a gradient of 1:1000. If the river descends 2 meters over a distance of 2000 meters, is the gradient consistent? (2022)
  • Step 1: Understand what gradient means. Gradient is the ratio of vertical change (rise) to horizontal change (run).
  • Step 2: Identify the rise and run from the question. The rise is 2 meters (the descent of the river) and the run is 2000 meters (the distance over which this descent occurs).
  • Step 3: Calculate the gradient using the formula: Gradient = Rise / Run.
  • Step 4: Plug in the values: Gradient = 2 m / 2000 m.
  • Step 5: Simplify the fraction: 2 divided by 2000 equals 0.001.
  • Step 6: Convert the decimal to a ratio: 0.001 can be expressed as 1:1000.
  • Step 7: Compare the calculated gradient (1:1000) with the given gradient (1:1000).
  • Step 8: Since both gradients are the same, conclude that the gradient is consistent.
  • Gradient Calculation – Understanding how to calculate the gradient using the formula Rise/Run.
  • Consistency of Gradient – Determining if the calculated gradient matches the given gradient.
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