What type of line suggests movement and energy in art?

A diagonal line suggests movement and energy in art. Because diagonal lines are neither perfectly upright nor flat, they appear unstable and dynamic, giving the viewer a sense of action, tension, or motion within a composition.

Vertical lines convey stability, strength, and height. Horizontal lines suggest calm, rest, and tranquility. "Static" describes an absence of movement and is not itself a type of line used in art composition.

Exam tip: associate each line direction with its psychological effect - vertical with strength, horizontal with calm, and diagonal with movement and energy.