Question

1. what is the relationship between particle size and stream velocity?
2. according to the graph, which particle type is the smallest and requires the least velocity to transport?
3. which type of sediment requires the highest water velocity in order to be transported?
4. what stream velocity is required to transport sand - sized particles?
5. what particle diameter can a stream with a velocity of 100 cm/a begin to transport?
6. at what velocity does the river begin to transport pebbles (about 0.2 cm in diameter)?
7. what particle size corresponds to a stream velocity of approximately 1 cm/s?
8. which particle type, silt or clay, required a lower velocity to stay in motion?
9. in a river where the average water velocity is 50 cm/s, which types of particles could the river transport continuously?
10. if the water velocity of a river decreases from 100 cm/s to 10 cm/s, what will likely happen to the transported cobbles and pebbles?
11. how does the required stream velocity change as particle size increases from clay to boulders?

Explanation:

Step1: Analyze the graph

The graph shows a positive - correlation between particle size and stream velocity. As particle size increases, the stream velocity required to transport the particle also increases.

Step2: Answer question 1

The relationship is a positive correlation. Larger particles require higher stream velocities for transportation.

Step3: Answer question 2

Clay is the smallest particle type and requires the least velocity to transport as seen from the graph.

Step4: Answer question 3

Boulders require the highest water velocity to be transported.

Step5: Answer question 4

To transport sand - sized particles, a stream velocity of about 20 - 30 cm/s is required (approximate value from the graph).

Step6: Answer question 5

A stream with a velocity of 100 cm/s can begin to transport particles with a diameter of about 0.5 - 1 cm (approximate value from the graph).

Step7: Answer question 6

The river begins to transport pebbles (about 0.2 cm in diameter) at a velocity of about 50 cm/s (approximate value from the graph).

Step8: Answer question 7

A stream velocity of approximately 1 cm/s corresponds to a particle size of about 0.01 - 0.05 cm (approximate value from the graph).

Step9: Answer question 8

Clay requires a lower velocity to stay in motion compared to silt.

Step10: Answer question 9

In a river with an average water velocity of 50 cm/s, the river could continuously transport particles such as clay, silt, and some sand (based on the graph).

Step11: Answer question 10

If the water velocity of a river decreases from 100 cm/s to 10 cm/s, the transported cobbles and pebbles will likely settle out of the water column as the velocity is no longer sufficient to keep them in transport.

Step12: Answer question 11

As particle size increases from clay to boulders, the required stream velocity increases significantly.

Answer:

1. Positive correlation (larger particles require higher stream velocities).
2. Clay.
3. Boulders.
4. About 20 - 30 cm/s.
5. About 0.5 - 1 cm.
6. About 50 cm/s.
7. About 0.01 - 0.05 cm.
8. Clay.
9. Clay, silt, and some sand.
10. They will likely settle out.
11. The required stream velocity increases significantly.