Final answer:
The key principles of a good animation encompass Unity, Balance, Emphasis and Subordination, Scale and Proportion, Rhythm, Repetition, and Time and Motion.
Step-by-step explanation:
The key principles of a good animation include Unity, Balance, Emphasis and Subordination (Focal Point), Scale and Proportion, Rhythm, Repetition, and Time and Motion. Unity refers to the overall harmonious coherence of the animation, while Balance ensures that the visual elements are distributed evenly. Emphasis and Subordination help create a focal point and hierarchy of importance. Scale and Proportion maintain the correct sizes and relationships between objects. Rhythm and Repetition add movement and patterns, and Time and Motion create a sense of movement and depth.