Which function do transitions serve in video editing?

Transitions serve to facilitate smoother scene changes in video editing. When editing a film or video, transitions are crucial for maintaining the flow of the narrative. They act as visual bridges between scenes, helping to guide the viewer from one moment to the next without jarring interruptions.

By employing transitions, editors can create a sense of continuity and coherence that enhances the overall viewing experience. For instance, a cross-dissolve transition allows one scene to blend into another, making the shift feel natural and less abrupt. This is vital for storytelling, as it helps maintain the emotional tone and pacing of the video.

In contrast, the other options involve different aspects of video production that don't directly relate to the primary role of transitions. Color grading, slow-motion effects, and audio mixing focus on distinct elements of video creation, but they do not encompass the specific responsibility of transitions to ensure smooth changes between scenes.