PhyCAI - Physics Simulation contains 51 simulations which are useful in the teaching of University Physics in subjects: mechanics, thermodynamics, vibration and wave, optics, electromagnetics and modern physics. Each simulation has some adjustable parameters, it is convenient to analyze the evolution of physics pictures with a variety of parameters. All the pictures are obtained by numerical calculation of the physics models from textbooks or papers, so we achieve realism, such as interference patterns in optics, real-time animation in Newtons cradle, sound effect in beats, etc.