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Formula Manipulation

  1. Aug 25, 2009 #1
    Hi, ive just taken higher physics at my local college, its been a few years since i left school and need to do some revision.

    They expect me to be able to do some formula manipulation, i have no idea how to do this.. :bugeye: i need a beginners tutorial or if someone really nice person can explain the basics, because i am totally stuck, im not even sure what i should be looking for on the net.

    it's only my first lesson, my second on friday and i feel like im falling behind already.
    also if if anyone could advise on what kind of skills i should need at higher level i would be greatful.

    Cheers.
     
  2. jcsd
  3. Aug 25, 2009 #2

    berkeman

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    Staff: Mentor

    Welcome to the PF. Do you mean like algebraic manipulations?

    http://en.wikipedia.org/wiki/Elementary_algebra

    .
     
  4. Aug 26, 2009 #3
    One very useful property of physics formulas is that they have units, and the units must be the same on both sides of the equation:

    F = ma (Newtons = kilograms times meters/sec2)
    F dx/dt = ma dx/dt = ma v ( Newton meters/sec = Joules per sec = watts)
     
  5. Aug 26, 2009 #4

    ZapperZ

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    Staff Emeritus
    Science Advisor
    Education Advisor
    2016 Award

    You need to learn basic algebra, and that's mathematics, not physics.

    Zz.
     
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