* Competence: Velocity is the speed at which a stream or river is flowing. The higher the velocity, the greater the competence of the stream or river to transport sediment. This is because the faster the water is flowing, the more energy it has to carry sediment.
* Capacity: Velocity also affects the capacity of a stream or river to transport sediment. The higher the velocity, the greater the capacity of the stream or river to transport sediment. This is because the faster the water is flowing, the more sediment it can carry.
However, it is important to note that velocity is not the only factor that affects competence and capacity. Other factors, such as the size and shape of the sediment, the density of the water, and the slope of the stream or river bed, also play a role.