Physics deals primarily with the nonliving aspects of nature such as mechanics, heat, sound, light, magnetism, electricity, electronics, etc.  Physics is taught as a "liberal arts" course.  Assignments are made by unit with the students bearing the responsibility of the day-by-day procedures.  The amount of material in terms of problems, discussions, projects, and laboratory exercises is entirely beyond the scope of any possible timeframe.  Hence it is vital that students work cooperatively in the selection of those items available which would increase their grasp of the materials.  this aspect of the course is considered to be college preparatory.