<p>Aside from the speed of light and acceleration of gravity (which you can approximate as 10 m/s^2), you don’t need to know constants. You do need to know formulas.</p>
<p>sparknotes gives better explanations, pr sucks. i went to the lib. and got a text book. i used pr to find out what to study, do practice probs., and take tests, but i wouldn’t recommend trying to learn anything new from it for sure.</p>
<p>o and a lot of the mathematical concepts of em and electricity aren’t covered in basic first year text books, as well as oscillations and parts of optics. i would say leave a lot of time to prepare, and go find yourself a good tutor/teacher because overall books by themselves don’t cut it.</p>
<p>yeah…u should learn the concepts from other sources…i gave my test when i was studying my second year A level phy course. So didn’t have much problem with the course.</p>