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SONOGRAPHY CANADA PHYSICS CORE EXAM QUESTIONS WITH ANSWERS
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SONOGRAPHY CANADA PHYSICS CORE EXAM QUESTIONS WITH ANSWERS
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SONOGRAPHY CANADA PHYSICS CORE EXAMQUESTIONS WITH ANSWERS
what is media/medium - -biological tissue
-what do all waves carry from one location to another - -energy
-sound is a ____________ wave in which particles in the medium move - -
mechanical
-where can sound not travel - -in a vacuum
-are sound waves transverse or longitudinal waves - -longitudinal
-the effects of the medium upon the sound wave - -acoustic propagation
properties
-what are used to distinguish between sound waves and other types of
waves - -acoustic variables- pressure, density, and distance (measure of a
particle motion)
-what are the 3 acoustic variables - -pressure, density and distance
-concentration of force in an area - -pressure
-what is pressure measured in - -pascals (Pa)
-concentration of mass in a volume - -density
-what is volume measured in - -kg/cm^3 (cubic)
-what describes a sound waves features - -acoustic parameters
-what are the 7 acoustic parameters - -period, frequency, amplitude, power,
intensity, wavelength, propagation speed
-how do particles move in soundwaves - -longitudinally- particles move in
the same direction that the wave propagates (parallel)
-in-phase wave - -when their peaks and troughs occur at the same time
-out of phase wave - -peaks and troughs occur at difference times
-either inverted or out of step
, -what occurs when waves lose their individual characteristics and combine
to form a single wave - -interference
-what combination of waves results in the formation of a single wave of
greater amplitude of either components - -constructive interference
-what kind of wave causes the formation of a single wave of lesser
amplitude causing what types of interference - -out of phase
destructive interference
-what occures when 2 out of phase waves of equal amplitude interfere - -
complete destructive interference
-what types of waves (phase) occur with complete destructive interference -
-out of phase waves
-what causes waves to be momentarily in phase and out of phase (causing
constructive and destructive interference) - -waves of difference frequencies
-what type of waves of difference frequencies result in (type of interference)
- -constructive and destructive
-what direction of the graph is verticle vs horozontal - -y=vertical
x=horozonatal
-what is a reciprocal - -when the 2 numbers are multiplied together to = 1
(10 x 1/10)
-tracy gets made king huge dense dummy cause millions (of) micro
nuisances pileup - -tera (10^12)
giga (10^9)
mega (10^6)
kilo (10^3)
hecto (10^2)
deca (10^1)
deci (-1)
centi (-2)
milli (-3)
micro (-6)
nano (-9)
pico (-12)
-hertz to mega hertz - -1 000 000 > 1
-what do parameters describe - -the features of a sound wave. 7
parameters are required to ompletely characterize a sound wave
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