Friction
fast
They are generally slow.
slow
Fast moving stream
fast. not that fast but fast.
fast
fast
How fast molecules are moving. If they are moving fast its hot, but if they are moving slow it is cold
Fast moving water will erode faster because it is more powerful than slow moving water.
The lion is a pretty fast animal, but it depends how fast you want to know, like comparing it to other animals, it's slow &' it's fast.
Normally, they are slow moving snakes.
Fast moving. sediment is heavy it settle out in slow water. But a river that just became slow after being fast looks like it has the most, because of all the settling going on.