From Graphic Design: The New Basics on page 233 it states “Motion can be implied as well as literal… Artists have long sought ways to represent the movement of bodies and the passage of time within the realm of static, 2-dimensional space.” This means that for a while, probably when comics were a new type of novel, artists have been trying new ways of illustrating motion or movement in a way that makes sense.
My example comes from the comic Rabbithead by Rebecca Dart. In almost every frame on both of these pages there is either implied or literal motion. An illustrated example of literal motion is on page 109 at the top right corner. The artist has drawn an arrow in the path of the wolf jumping. Seeing the arrow helps the viewer imagine that the wolf is jumping. For implied motion, each comic strip shows movement in the scene. However, you have to look at the frames as a whole instead of just looking at one frame. At the top comic strip starting on page 108, you see some type of sappy looking blob on the side of the tree. As you progress through the comic strip, you can see that the same spot is progressively changing. Showing a subject that slightly changes its position or its form each frame implies movement or motion.
If the concepts of time and motion factored into other subjects I learned from this class, it would be repetition and rotation. Motion, repetition, and rotation use the same subject over and over again and both could progressively change slightly too.