Edelman SPI Exam| Brand New
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acoustic variables - Answer✅✅pressure, density, distance
specifically *identify* sound waves
transverse wave: particles move in what direction? - Answer✅✅perpendicular to
the wave
longitudinal wave: particles move in what direction? - Answer✅✅parallel to the
wave
the seven parameters that describe sound waves are - Answer✅✅period,
frequency
amplitude, power, intensity
speed and wavelength
period - Answer✅✅time required to complete a single cycle
, period is determined by - Answer✅✅the sound source
frequency - Answer✅✅number of cycles per second
frequency is determined by - Answer✅✅the sound source
ultrasound has a frequency of - Answer✅✅> 20,000 Hz
audible sound has a frequency of - Answer✅✅between 20Hz and 20,000Hz
infrasound has a frequency of - Answer✅✅< 20Hz
frequency is related to what kind of resolution? - Answer✅✅axial resolution
frequency and period are related how? - Answer✅✅inversely
amplitude is expressed with what units - Answer✅✅any of the acoustic variables:
pressure (Pascals)
density (grams/cubic cm)
distance (cm, inches, etc)
intensity - Answer✅✅the concentration of energy in a sound beam
intensity depends on what? - Answer✅✅both power and the cross-sectional area
of the beam
equation for intensity - Answer✅✅Intensity = Power / Area
(power is watts; beam area is cm squared)
what is the key parameter for bioeffects and safety? - Answer✅✅intensity
wavelength is determined by what? - Answer✅✅both the sound source and the
medium
wavelength influences - Answer✅✅axial resolution (image quality)
equation for wavelength - Answer✅✅wavelength = propagation speed/frequency
higher frequency has a ____ wavelength - Answer✅✅shorter
lower frequency has a ____ wavelength - Answer✅✅longer
in soft tissue, what will the equation for wavelength look like? - Answer✅✅1.54
*mm* / frequency (in *MHz*)
Expert Exam Guide Questions with
100% Correct Clear Answers|All
Graded A+|Latest Premium
Update|100% Guaranteed Success.
acoustic variables - Answer✅✅pressure, density, distance
specifically *identify* sound waves
transverse wave: particles move in what direction? - Answer✅✅perpendicular to
the wave
longitudinal wave: particles move in what direction? - Answer✅✅parallel to the
wave
the seven parameters that describe sound waves are - Answer✅✅period,
frequency
amplitude, power, intensity
speed and wavelength
period - Answer✅✅time required to complete a single cycle
, period is determined by - Answer✅✅the sound source
frequency - Answer✅✅number of cycles per second
frequency is determined by - Answer✅✅the sound source
ultrasound has a frequency of - Answer✅✅> 20,000 Hz
audible sound has a frequency of - Answer✅✅between 20Hz and 20,000Hz
infrasound has a frequency of - Answer✅✅< 20Hz
frequency is related to what kind of resolution? - Answer✅✅axial resolution
frequency and period are related how? - Answer✅✅inversely
amplitude is expressed with what units - Answer✅✅any of the acoustic variables:
pressure (Pascals)
density (grams/cubic cm)
distance (cm, inches, etc)
intensity - Answer✅✅the concentration of energy in a sound beam
intensity depends on what? - Answer✅✅both power and the cross-sectional area
of the beam
equation for intensity - Answer✅✅Intensity = Power / Area
(power is watts; beam area is cm squared)
what is the key parameter for bioeffects and safety? - Answer✅✅intensity
wavelength is determined by what? - Answer✅✅both the sound source and the
medium
wavelength influences - Answer✅✅axial resolution (image quality)
equation for wavelength - Answer✅✅wavelength = propagation speed/frequency
higher frequency has a ____ wavelength - Answer✅✅shorter
lower frequency has a ____ wavelength - Answer✅✅longer
in soft tissue, what will the equation for wavelength look like? - Answer✅✅1.54
*mm* / frequency (in *MHz*)
