1
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Edelman SPI Questions and Answers
(100% Correct Answers) Already Graded
A+
All numerical values must have corresponding _________.—Ans:
units
A number without a unit is ________________.—Ans: ambiguous
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What is the prefix for 10^6?—Ans: mega (M)
What is the prefix for 10^-6?—Ans: micro (µ)
All waves carry _______ from one location to another.—Ans:
energy
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Sound is a __________________ and _________________ wave.—Ans:
mechanical and longitudinal
Sound travels in a _____________ line.—Ans: straight
What are the effects of the medium upon the sound wave?—Ans:
acoustic propagation properties
What are the effects of the sound wave upon the biologic tissue
through which it passes?—Ans: bioeffects
What is the unit for pressure?—Ans: Pascals (Pa)
What is the unit for density?—Ans: kg/cm^3
What are the three acoustic variables?—Ans: pressure, density,
distance
What are the seven acoustic parameters?—Ans: period
power
propagation speed
wavelength
intensity
, 2
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frequency
amplitude
A pair of waves are considered ______________ when their peaks
occur at the same time and at the same location.—Ans: in-phase
When two waves are __________, their peaks occur at different
times, and so do their troughs.—Ans: out-of-phase
What kind of interference results when two in phase waves
combine?—Ans: constructive interference
What kind of interference results when two out of phase waves
combine?—Ans: deconstructive interference
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What kind of interference occurs when waves have different
frequencies?—Ans: both constructive and deconstructive
______________ describe features of a sound wave.—Ans:
parameters
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What is period?—Ans: how long it takes for one cycle/wave
What is the unit for period?—Ans: microseconds (us)
What is period determined by?—Ans: sound source
Can period be adjusted by the sonographer?—Ans: No
What is frequency?—Ans: How many cycles/waves occur in a
certain amount of time
What are the units for frequency?—Ans: units/second
for example: 1,000,000 cycles/second = 1 MHz
What does Hertz mean?—Ans: per second
Frequency (f) and Period (T) are __________________.—Ans:
reciprocals
What is frequency determined by?—Ans: sound source
Is frequency adjustable by the sonographer?—Ans: No
What is infrasound, audible sound, and ultrasound?—Ans: less
than 20 Hz
For Expert help and assignment solutions, +254707240657
Edelman SPI Questions and Answers
(100% Correct Answers) Already Graded
A+
All numerical values must have corresponding _________.—Ans:
units
A number without a unit is ________________.—Ans: ambiguous
© 2025 Assignment Expert
What is the prefix for 10^6?—Ans: mega (M)
What is the prefix for 10^-6?—Ans: micro (µ)
All waves carry _______ from one location to another.—Ans:
energy
Guru01 - Stuvia
Sound is a __________________ and _________________ wave.—Ans:
mechanical and longitudinal
Sound travels in a _____________ line.—Ans: straight
What are the effects of the medium upon the sound wave?—Ans:
acoustic propagation properties
What are the effects of the sound wave upon the biologic tissue
through which it passes?—Ans: bioeffects
What is the unit for pressure?—Ans: Pascals (Pa)
What is the unit for density?—Ans: kg/cm^3
What are the three acoustic variables?—Ans: pressure, density,
distance
What are the seven acoustic parameters?—Ans: period
power
propagation speed
wavelength
intensity
, 2
For Expert help and assignment solutions, +254707240657
frequency
amplitude
A pair of waves are considered ______________ when their peaks
occur at the same time and at the same location.—Ans: in-phase
When two waves are __________, their peaks occur at different
times, and so do their troughs.—Ans: out-of-phase
What kind of interference results when two in phase waves
combine?—Ans: constructive interference
What kind of interference results when two out of phase waves
combine?—Ans: deconstructive interference
© 2025 Assignment Expert
What kind of interference occurs when waves have different
frequencies?—Ans: both constructive and deconstructive
______________ describe features of a sound wave.—Ans:
parameters
Guru01 - Stuvia
What is period?—Ans: how long it takes for one cycle/wave
What is the unit for period?—Ans: microseconds (us)
What is period determined by?—Ans: sound source
Can period be adjusted by the sonographer?—Ans: No
What is frequency?—Ans: How many cycles/waves occur in a
certain amount of time
What are the units for frequency?—Ans: units/second
for example: 1,000,000 cycles/second = 1 MHz
What does Hertz mean?—Ans: per second
Frequency (f) and Period (T) are __________________.—Ans:
reciprocals
What is frequency determined by?—Ans: sound source
Is frequency adjustable by the sonographer?—Ans: No
What is infrasound, audible sound, and ultrasound?—Ans: less
than 20 Hz
