Answer:— Simulation models and computer-generated animations represent things that are too fast to observe with the naked eye.Additional Knowledge:Examples of Fast Phenomena:Speed of light, chemical reactions, bullet motion, or car crashesTypes of Models Used:High-speed video recordingsComputer simulationsPhysics-based animationsPurpose:These models help scientists, engineers, and students visualize, analyze, and understand extremely fast events that happen in microseconds or nanoseconds.