Need help with physics!

<p>I have to take the Physics SAT in 3 weeks, and there are some topics that I have not yet studied at school, since I do not live in US and we have different plans of study here. Therefore, I need to know a few things:</p>

<p>Do I need to learn the formulas for this topics, or do I just need to understand it conceptually?:
-Quantum theory of light
-Kepler's law
-Electric potential
-Electric potential energy
-Capacitors</p>

<p>What do I need to study about this topics?:
-Spectral lines
-Theory of relativity
-Superconductivity
-Magnetic fields
-Electromagnetism
-Faraday's law of induction (The EMF generated is proportional to the rate of change of the magnetic flux.)
-Lenz's law ("An induced current is always in such a direction as to oppose the motion or change causing it")
-Wave polarization
-Calorimetry</p>

<p>Thank you very much!</p>