<p>I will give you an insight on this: I received C’s both semester of AP Physics B, but got a 4 on the test. I messed up on the FRQs, so I expected a 3, but apparently I aced the multiple choice or the curve was very forgiving. I am now in AP Physics C, I can say that it is all about mentality. Your son will be much more scientifically literate after physics. I believe that the benefits far outweigh the costs (a C or B). Make sure your son thinks and just visualizes everything. It really does make it easier on your son. Even if he does not know the equations by heart, if he is able to visualize and imagine the situation given by the problem, he will do fine. All the equations can be derived from other equations and really grasping physics will make his life so much better. I mean you can have fun just thinking about the natural phenomena that occurs on a daily basis; that is how I pass my time (seriously, I literally spent hours imagining how a light bulb works).</p>
<p>Seriously though, one can know all the equations in the book, but without imagination, he can never grasp physics.</p>
<p>“One should guard against preaching to young people success in the customary form as the main aim in life. The most important motive for work in school and in life is pleasure in work, pleasure in its result and the knowledge of the value of the result to the community.”-Albert Einstein</p>