In this lecture, we focus on the concept of secondary animation by animating a bouncing ball. You’ll learn how to add secondary motions—like squash and stretch—to enhance the realism and appeal of your animations. We’ll cover timing, acceleration, and the principles of animation that make the ball's bounce feel natural and engaging. By mastering secondary animation, you’ll elevate your skills and create more dynamic motion in your projects. Keywords: Secondary Animation, Bouncing Ball Animation, Squash and Stretch, Realistic Motion, Animation Principles, After Effects Techniques, Enhancing Animation Quality