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SONOGRAPHY CANADA CORE REVIEW
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SONOGRAPHY CANADA CORE REVIEW
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SONOGRAPHY CANADA PHYSICS COREWhat is media/medium - Answers-biological tissue
What do all waves carry from one location to another - Answers-energy
Sound is a ____________ wave in which particles in the medium move - Answers-
mechanical
Where can sound not travel - Answers-in a vacuum
Are sound waves transverse or longitudinal waves - Answers-longitudinal
What are the 7 acoustic parameters - Answers-period, frequency, amplitude, power,
intensity, wavelength, propagation speed
How do particles move in soundwaves - Answers-longitudinally- particles move in the
same direction that the wave propagates (parallel)
In-phase wave - Answers-when their peaks and troughs occur at the same time
Out of phase wave - Answers-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 - Answers-interference
What combination of waves results in the formation of a single wave of greater
amplitude of either components - Answers-constructive interference
What kind of wave causes the formation of a single wave of lesser amplitude causing
what types of interference - Answers-out of phase
Destructive interference
What occures when 2 out of phase waves of equal amplitude interfere - Answers-
complete destructive interference
What types of waves (phase) occur with complete destructive interference - Answers-
out of phase waves
What causes waves to be momentarily in phase and out of phase (causing constructive
and destructive interference) - Answers-waves of difference frequencies
What type of waves of difference frequencies result in (type of interference) - Answers-
constructive and destructive
, What direction of the graph is verticle vs horozontal - Answers-y=vertical
X=horozonatal
What is a reciprocal - Answers-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 -
Answers-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 - Answers-1 000 000 > 1
What do parameters describe - Answers-the features of a sound wave. 7 parameters
are required to ompletely characterize a sound wave
Which 2 parameters are reciprocals - Answers-period and frequency
The effects of the medium upon the sound wave - Answers-acoustic propagation
properties
What are used to distinguish between sound waves and other types of waves -
Answers-acoustic variables- pressure, density, and distance (measure of a particle
motion)
What are the 3 acoustic variables - Answers-pressure, density and distance
Concentration of force in an area - Answers-pressure
What is pressure measured in - Answers-pascals (Pa)
Concentration of mass in a volume - Answers-density
What is volume measured in - Answers-kg/cm^3 (cubic)
What describes a sound waves features - Answers-acoustic parameters
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