Motion Types Motion in 1 dimension To understand the motion concept, you should first realize that there are two types of motion the simplest type which is in one dimension, on a straight line horizontally and vertically . for further understanding about motion please follow the link to watch a video. How things moving ? Motion in 2 dimension The complex types which is in 2 dimensions and more. For example, circular motion and projectile motion as figures 1.1 and 1.2 shown below. figure 1.1: Ball attached to string moving in a circular motion figure1.2: Bike rider moving in a trajectory on 2 dimensions.