1|Page
2025/2026 SPI EDELMAN EXAM WITH ALL
COMPLETE QUESTIONS AND DETAILED CORRECT
ANSWERS (VERIFIED) FOR GUARANTEED PASS
TOP-RATED A+.
SPI EDELMAN
Prepare for your Edelman SPI Exam with confidence. This
comprehensive exam resource includes practice questions, detailed
explanations, and core ultrasound physics concepts. Perfect for
students and professionals preparing for the ARDMS SPI exam with
Edelman materials.
All numerical values must have corresponding _________.
...... ANSWER ....... units
A number without a unit is ________________. ......
ANSWER ....... ambiguous
What is the prefix for 10^6? ...... ANSWER ....... mega
(M)
What is the prefix for 10^-6? ...... ANSWER ....... micro
(µ)
All waves carry _______ from one location to another. ......
ANSWER ....... energy
Sound is a __________________ and _________________
wave. ...... ANSWER ....... mechanical and longitudinal
,2|Page
Sound travels in a _____________ line. ...... ANSWER
....... straight
What are the effects of the medium upon the sound wave?
...... ANSWER ....... acoustic propagation properties
What are the effects of the sound wave upon the biologic
tissue through which it passes? ...... ANSWER .......
bioeffects
What is the unit for pressure? ...... ANSWER .......
Pascals (Pa)
What is the unit for density? ...... ANSWER .......
kg/cm^3
What are the three acoustic variables? ...... ANSWER
....... pressure, density, distance
What are the seven acoustic parameters? ...... ANSWER
....... period
power
propagation speed
wavelength
intensity
frequency
amplitude
,3|Page
A pair of waves are considered ______________ when their
peaks occur at the same time and at the same location. ......
ANSWER ....... in-phase
When two waves are __________, their peaks occur at
different times, and so do their troughs. ...... ANSWER
....... out-of-phase
What kind of interference results when two in phase waves
combine? ...... ANSWER ....... constructive interference
What kind of interference results when two out of phase
waves combine? ...... ANSWER ....... deconstructive
interference
What kind of interference occurs when waves have different
frequencies? ...... ANSWER ....... both constructive and
deconstructive
______________ describe features of a sound wave. ......
ANSWER ....... parameters
What is period? ...... ANSWER ....... how long it takes
for one cycle/wave
What is the unit for period? ...... ANSWER .......
microseconds (us)
What is period determined by? ...... ANSWER .......
sound source
, 4|Page
Can period be adjusted by the sonographer? ......
ANSWER ....... No
What is frequency? ...... ANSWER ....... How many
cycles/waves occur in a certain amount of time
What are the units for frequency? ...... ANSWER .......
units/second
for example: 1,000,000 cycles/second = 1 MHz
What does Hertz mean? ...... ANSWER ....... per second
Frequency (f) and Period (T) are __________________.
...... ANSWER ....... reciprocals
What is frequency determined by? ...... ANSWER .......
sound source
Is frequency adjustable by the sonographer? ......
ANSWER ....... No
What is infrasound, audible sound, and ultrasound? ......
ANSWER ....... less than 20 Hz
20 Hz - 20kHz
greater than 20kHz
Period and frequency are ______________ related. ......
ANSWER ....... inversely
2025/2026 SPI EDELMAN EXAM WITH ALL
COMPLETE QUESTIONS AND DETAILED CORRECT
ANSWERS (VERIFIED) FOR GUARANTEED PASS
TOP-RATED A+.
SPI EDELMAN
Prepare for your Edelman SPI Exam with confidence. This
comprehensive exam resource includes practice questions, detailed
explanations, and core ultrasound physics concepts. Perfect for
students and professionals preparing for the ARDMS SPI exam with
Edelman materials.
All numerical values must have corresponding _________.
...... ANSWER ....... units
A number without a unit is ________________. ......
ANSWER ....... ambiguous
What is the prefix for 10^6? ...... ANSWER ....... mega
(M)
What is the prefix for 10^-6? ...... ANSWER ....... micro
(µ)
All waves carry _______ from one location to another. ......
ANSWER ....... energy
Sound is a __________________ and _________________
wave. ...... ANSWER ....... mechanical and longitudinal
,2|Page
Sound travels in a _____________ line. ...... ANSWER
....... straight
What are the effects of the medium upon the sound wave?
...... ANSWER ....... acoustic propagation properties
What are the effects of the sound wave upon the biologic
tissue through which it passes? ...... ANSWER .......
bioeffects
What is the unit for pressure? ...... ANSWER .......
Pascals (Pa)
What is the unit for density? ...... ANSWER .......
kg/cm^3
What are the three acoustic variables? ...... ANSWER
....... pressure, density, distance
What are the seven acoustic parameters? ...... ANSWER
....... period
power
propagation speed
wavelength
intensity
frequency
amplitude
,3|Page
A pair of waves are considered ______________ when their
peaks occur at the same time and at the same location. ......
ANSWER ....... in-phase
When two waves are __________, their peaks occur at
different times, and so do their troughs. ...... ANSWER
....... out-of-phase
What kind of interference results when two in phase waves
combine? ...... ANSWER ....... constructive interference
What kind of interference results when two out of phase
waves combine? ...... ANSWER ....... deconstructive
interference
What kind of interference occurs when waves have different
frequencies? ...... ANSWER ....... both constructive and
deconstructive
______________ describe features of a sound wave. ......
ANSWER ....... parameters
What is period? ...... ANSWER ....... how long it takes
for one cycle/wave
What is the unit for period? ...... ANSWER .......
microseconds (us)
What is period determined by? ...... ANSWER .......
sound source
, 4|Page
Can period be adjusted by the sonographer? ......
ANSWER ....... No
What is frequency? ...... ANSWER ....... How many
cycles/waves occur in a certain amount of time
What are the units for frequency? ...... ANSWER .......
units/second
for example: 1,000,000 cycles/second = 1 MHz
What does Hertz mean? ...... ANSWER ....... per second
Frequency (f) and Period (T) are __________________.
...... ANSWER ....... reciprocals
What is frequency determined by? ...... ANSWER .......
sound source
Is frequency adjustable by the sonographer? ......
ANSWER ....... No
What is infrasound, audible sound, and ultrasound? ......
ANSWER ....... less than 20 Hz
20 Hz - 20kHz
greater than 20kHz
Period and frequency are ______________ related. ......
ANSWER ....... inversely
