MCAT PHYSICS 2

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allenwhycheng
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59703
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MCAT PHYSICS 2
Updated:
2011-01-13 21:39:34
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mcat physics flashcards
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studying to be a doc
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  1. unit for voltage
    volt (joule/coulomb) or kg-m2/A-s3
  2. formula for electric potential (V) given a (q) at distance (r)
    V=kq/r
  3. formula for electric potential energy (U)?
    U=qV
  4. unit for magnetic field
    • Tesla or Gauss
    • 1 Tesla =104 Gauss
  5. formula for force on moving charge particle in a magnetic field?
    • F=qvBsin()
    • B- magnetic field
  6. unit of current
    Ampere (1 Coulomb/sec)
  7. formula for current (I)
    I=q/t
  8. formula for force on a current carrying wire in the presence of a magnetic field
    F=iLBsin()
  9. formula for magnetic field created by long straight wire
    B=(permeability of free space)(current)/(2pi)(distance from wire)=uoi/2pir
  10. formula for magnetic field at enter of loop or wire
    B=uoi/r
  11. Ohm's law
    V=iR
  12. formula for electric power
    P=iV=i2R=V2/R
  13. formula for R in series circuit
    Rs=R1+R2+R3...
  14. formula for R in parallel circuit
    1/Rp=1/R1+1/R2+1/R3
  15. formula for capacitance
    C=(charge stored on the plate)Q/(potential difference btwn plates)V
  16. unit for capacitance
    Farad (Coulomb/Volt)
  17. formula for electric field btwn the plates of capacitor
    • E=potential difference btwn plates/distance of plates
    • =V/d
  18. for AC current, formula for Irms, for Vrms
    Irms=Imax/sqrt 2

    Vrms=Vmax/sqrt 2
  19. formula for Hooke's law (for springs)
    F=-spring constant/displacement=-kx
  20. formula for angular frequency of a mass on a spring and of a pendulum (simple harmonic motion)?
    spring- f=sqrt(k/m)

    pendulum- f=sqrt(g/L)
  21. formula for simple harmonic motion kinetic energy and potential energy
    KE=mv2/2

    • Uspring=kx2/2
    • Upendulum=mgh
  22. for simple harmonic motion, when is kinetic energy greatest, when is potential energy the greatest?
    • KE at equilibrium point
    • U at max displacement
  23. formula for a period of a mass on as spring and on of a pendulum
    • period spring=2pi sqrt(m/k)
    • period pendulum=2pi sqrt(L/g)
  24. describe particle oscillation in transverse wave, in longitudinal wave
    trans wave- oscillate perpendicular to wave

    long wave- oscillate along the direction of wave
  25. formula for velocity of wave
    v=freq*wave length
  26. whats a node and anti-node in a wave
    • node r points that remains at rest
    • anti-node r the points at max amptitude
  27. formula for sound intensity
    power/area
  28. (t/f)higher harmonics of standing wave in open pipes have higher wave speed than lower harmonics
    false, all harmonics have same wave speed
  29. how are focal length and radius of curvature related?
    • focal length=radius of curvature/2
    • f=r/2
  30. formula for object distance (o), image (distance), and focal length (f)
    1/f=1/o+1/i=2/r

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