My final exam is in 5 days. Our professor informed us that he would not test us on Chapter one which is your Lorentz transformation, length contraction, basic relativity stuff. But then we go all the way up to I believe chapter 7, so 6 chapters. The thing is, we go into Psi wave functions, talking about energy levels, the "infinite well" I'm not exactly sure. I barely understood the bohr electron model, as far as the energy levels and concepts such as the positronium (I understand the whole idea of it being unstable, decaying quickly, similar to the Hydrogen atom) but other than that... I was terrible in the energy and momentum conservation, both seen in Particle collisions as well as compton effect. Could someone touch up on that? Really I would like to get hints on what to focus on, I'm hoping that the class has general "teaching objectives" that are almost universal to other Universities. Also could someone touch up on radiowaves bouncing off of water and how to calculate the time it would take to detect an approaching ship from a radar station... very vague I know but I have only learned bits and pieces of each subject. As you can probably tell, I am a poor student, not dumb, but un-focused. Any help would be appreciated.