What term defines dynamic aesthetic quality expressing action or force in design through contrast?

The term that describes a dynamic aesthetic quality expressing action or force in design through contrast is "tension." Tension in design refers to the use of contrasting elements, such as colors, shapes, or textures, to create a sense of energy or movement. This contrast draws the viewer's eye and can evoke emotions, making the design feel more dynamic and engaging.

When tension is effectively employed, it can enhance visual interest and communicate a certain narrative or idea within the design. In the context of floral arrangements or any other design field, the purposeful arrangement of contrasting elements can lead to a striking composition that captures attention and stimulates the senses.

Other terms like balance, harmony, and scale have their own distinct meanings in design. Balance refers to the distribution of visual weight, creating stability. Harmony involves the pleasing arrangement of elements that create a cohesive whole, while scale pertains to the size of elements in relation to each other and their surroundings. Although these concepts are important in a successful design, they do not specifically capture the dynamic action and contrast that "tension" represents.