PHYS 5A. General Physics: Mechanics, Heat, Sound. PHYS 5A-B sequence is a two-semester course in introductory physics in which fundamental concepts are emphasized including some physiological applications. Lecture two hours; discussion one hour; laboratory three hours. Prerequisite: Recently completed three years of high school algebra and geometry; and a college course in algebra and trigonometry (MATH 9 recommended) for those having an inadequate mathematics background. Graded: Graded Student. Units: 4.0