Speed is simply referred to as the distance that is traveled by someone or a particular thing per unit of time. Speed has to do with how fast a particular object can be.
Speed is considered to be a scalar quantity and its s.i unit is then meters per second.
Because darker color have more visual weight than lighter colors, they should be put at the lower part of designs. In designs, darker colors are seen first and they carry more visual weight, in order to create balance in a design work, such colors should be put at the lower part of the design.<span />