Final answer:
The amount of movement in a hair curl is primarily determined by the curling technique applied. This involves the heat exposure duration, wrapping angle, and sectioning of the hair. The specific techniques used lead to tighter or looser curls, influencing hair movement.
Step-by-step explanation:
The amount of movement in a curl is determined by the curling technique used.
When curling hair, the technique involves factors such as the duration the hair is exposed to heat, the angle at which the hair is wrapped around the curling iron, and how the hair is sectioned and fed into the curling device. For example, wrapping hair flat against the curling iron will produce a different curl compared to twisting the hair as you wrap it, or using different wrapping methods like spiral or ribbon curls. These variations in technique can lead to tighter or looser curls, influencing how much the hair moves.
Other factors like the size of the curling iron, hair length, and hair texture also affect the final result, but it is the specific curling technique that ultimately controls the amount of movement in the finished curls.