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Physics Formulas
Term | Definition |
---|---|
frequency | f=1/T |
period | T=1/f |
wavelength | lambda=c/f |
density | p=mass/volume |
pressure | P=force/area |
power | W=work/time |
intensity | I=power/beam area |
impedance | Z=p x c |
conservation of energy | Ii = Ir + It |
total attenuation | a=ac x l |
half intensity depth | Dcm=3dB/ac |
partner of Mega is: | micro |
partner of Kilo is: | milli |
partner of Hecto is: | centi |
units of frequency are: | Hz, KHz, MHz |
units for period are: | sec, msec, usec |
units for wavelength are: | m, cm, mm |
units for density are: | Kg/m cubed, g/cm cubed, g/mL |
units for pressure are: | newton/cm squared, Pascal, Torr, mmHg, lbs/in squared |
units for power are: | Watt, mWatt, KWatt, Joule/sec |
unit for intensity is: | Watt/cm squared |
units for impedance are: | RAYL, MRAYL |