As velocity increases, does pebble/bedload size decrease?

Question

geography project and i'm kinda stuck... help please??

Answer 1

Increases. The greater the velocity the larger the size of pebble that can be moved.

Answer 2

As velocity increases, the bedload and pebble size both increase because there is more energy to move it.

As velocity drops, this is the order the debris will fall out at.

boulder

gravel

pebble

sand

silt

clay

So as you can see, when everything is dropped out, clay will still be carried, yet boulders and gravel drop out the quickest because so much energy is needed to carry them.