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Common proofs? (studying for an exam)

  1. Oct 23, 2015 #1
    1. The problem statement, all variables and given/known data
    I'm currently studying for an exam, but I don't know exactly what could be on it - the specification is very vague. I was just wondering if there were some useful proofs I should know? I've covered things like proving the diffraction grating experiment, centripetal acceleration or snells law and deriving capacitance equations for time constant by integration, so nothing too mathematically complicated. I was wondering if there was anything more you could think of that are nice proofs I should learn for my level (18 year old/a level)? Thank you :)

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Oct 23, 2015 #2


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    Staff: Mentor

    Welcome to the PF.

    Have you worked with the wave equation and SHM yet? Might you have to derive the period of a pendulum? How would you derive the energy stored in a compressed spring given just Hooke's Law as a starting point? :smile:
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