SONOGRAPHY CANADA PHYSICS CORE
PERFECTLY SOLVED!!
what is media/medium
- Answer biological tissue
what do all waves carry from one location to another
- Answer energy
sound is a ____________ wave in which particles in the medium move
- Answer mechanical
where can sound not travel
- Answer in a vacuum
are sound waves transverse or longitudinal waves
- Answer longitudinal
the effects of the medium upon the sound wave
- Answer acoustic propagation properties
what are used to distinguish between sound waves and other types of - Answer
waves acoustic
variables- pressure, density, and distance (measure of a particle motion)
what are the 3 acoustic variables
- Answer pressure, density and distance
concentration of force in an area
- Answer pressure
what is pressure measured-inAnswer pascals (Pa)
concentration of mass in a volume
- Answer density
what is volume measured -inAnswer kg/cm^3 (cubic)
what describes a sound waves features
- Answer acoustic parameters
what are the 7 acoustic parameters
- Answer period, frequency, amplitude, power, intensity,
wavelength, propagation speed
how do particles move in soundwaves
- Answer longitudinally
- particles move in the same
direction that the wave propagates (parallel)
in-phase wave- Answer when their peaks and troughs occur at the same time
out of phase wave- Answer 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
Answer interference
,SONOGRAPHY CANADA PHYSICS CORE
PERFECTLY SOLVED!!
what combination of waves results in the formation of a single wave of greater amplitude of either
components- Answer constructive interference
what kind of wave causes the formation of a single wave of lesser amplitude causing what types of
interference- Answer out of phase
destructive interference
what occures when 2 out of phase waves of equal amplitude interfere
- Answer complete
destructive interference
what types of waves (phase) occur with complete destructive interference
- Answer out of phase
waves
what causes waves to be momentarily in phase and out of phase (causing constructive and
destructive interference)
- Answer waves of difference frequencies
what type of waves of difference frequencies result in (type of interference)
- Answer constructive
and destructive
what direction of the graph is verticle vs horozontal
- Answer y=vertical
x=horozonatal
what is a reciprocal
- Answer when the 2 numbers are multiplied together to = 1
(10 x 1/10)
tracygets made king huge dense dummy cause millions (of) micro nuisances pileup
- Answer 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)
, SONOGRAPHY CANADA PHYSICS CORE
PERFECTLY SOLVED!!
hertz to mega hertz
- Answer 1 000 000 > 1
what do parameters describe
- Answer the features of a sound wave. 7 parameters are required to
ompletely characterize a sound wave
which 2 parameters are reciprocals
- Answer period and frequency
which parameters describe a waves bigness
- Answer amplitude, power, intensity
which parameter is determined by the sound source and the medium
- Answer wavelength
which parameters are determined by the sound source
- Answer period, frequency, amplitude,
power, and intensity
which parameter is determined by the medium
- Answer speed
what is the time it takes a wave to vibrate a single cycle or the time from the start of one cycle to the
start of the next cycle
- Answer period
what units is the period reported- in
Answer time; microseconds, seconds
what are the typical values of period in diagnostic- Answer
US 0.06-0.5microseconds
0.00000006-0.0000005 (ms)
what is period determined by
- Answer sound source only
can the sonographer adjust period
- Answer no
what is the number of particular events that occur in a specific duration of
- Answer
time frequency
in US, what event is counted in frequency
- Answer number of cycles
what units is frequency reported- in
Answer unit per second
hertz/Hz, Hertz
what are the typical values of frequency in clinical imaging
- Answer 2MHz-15MHz
2million -15million per second
what determines frequency and is it adjustable
- Answer found source, no
PERFECTLY SOLVED!!
what is media/medium
- Answer biological tissue
what do all waves carry from one location to another
- Answer energy
sound is a ____________ wave in which particles in the medium move
- Answer mechanical
where can sound not travel
- Answer in a vacuum
are sound waves transverse or longitudinal waves
- Answer longitudinal
the effects of the medium upon the sound wave
- Answer acoustic propagation properties
what are used to distinguish between sound waves and other types of - Answer
waves acoustic
variables- pressure, density, and distance (measure of a particle motion)
what are the 3 acoustic variables
- Answer pressure, density and distance
concentration of force in an area
- Answer pressure
what is pressure measured-inAnswer pascals (Pa)
concentration of mass in a volume
- Answer density
what is volume measured -inAnswer kg/cm^3 (cubic)
what describes a sound waves features
- Answer acoustic parameters
what are the 7 acoustic parameters
- Answer period, frequency, amplitude, power, intensity,
wavelength, propagation speed
how do particles move in soundwaves
- Answer longitudinally
- particles move in the same
direction that the wave propagates (parallel)
in-phase wave- Answer when their peaks and troughs occur at the same time
out of phase wave- Answer 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
Answer interference
,SONOGRAPHY CANADA PHYSICS CORE
PERFECTLY SOLVED!!
what combination of waves results in the formation of a single wave of greater amplitude of either
components- Answer constructive interference
what kind of wave causes the formation of a single wave of lesser amplitude causing what types of
interference- Answer out of phase
destructive interference
what occures when 2 out of phase waves of equal amplitude interfere
- Answer complete
destructive interference
what types of waves (phase) occur with complete destructive interference
- Answer out of phase
waves
what causes waves to be momentarily in phase and out of phase (causing constructive and
destructive interference)
- Answer waves of difference frequencies
what type of waves of difference frequencies result in (type of interference)
- Answer constructive
and destructive
what direction of the graph is verticle vs horozontal
- Answer y=vertical
x=horozonatal
what is a reciprocal
- Answer when the 2 numbers are multiplied together to = 1
(10 x 1/10)
tracygets made king huge dense dummy cause millions (of) micro nuisances pileup
- Answer 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)
, SONOGRAPHY CANADA PHYSICS CORE
PERFECTLY SOLVED!!
hertz to mega hertz
- Answer 1 000 000 > 1
what do parameters describe
- Answer the features of a sound wave. 7 parameters are required to
ompletely characterize a sound wave
which 2 parameters are reciprocals
- Answer period and frequency
which parameters describe a waves bigness
- Answer amplitude, power, intensity
which parameter is determined by the sound source and the medium
- Answer wavelength
which parameters are determined by the sound source
- Answer period, frequency, amplitude,
power, and intensity
which parameter is determined by the medium
- Answer speed
what is the time it takes a wave to vibrate a single cycle or the time from the start of one cycle to the
start of the next cycle
- Answer period
what units is the period reported- in
Answer time; microseconds, seconds
what are the typical values of period in diagnostic- Answer
US 0.06-0.5microseconds
0.00000006-0.0000005 (ms)
what is period determined by
- Answer sound source only
can the sonographer adjust period
- Answer no
what is the number of particular events that occur in a specific duration of
- Answer
time frequency
in US, what event is counted in frequency
- Answer number of cycles
what units is frequency reported- in
Answer unit per second
hertz/Hz, Hertz
what are the typical values of frequency in clinical imaging
- Answer 2MHz-15MHz
2million -15million per second
what determines frequency and is it adjustable
- Answer found source, no
