QUESTIONS AND CORRECT ANSWERS
What did Pythagoras observe? - CORRECT ANSWER observed the relationship between
sound pitch and though to have invented the sonometer
What did Aristotle develop? - CORRECT ANSWER The theory of sound propagation, the idea
that sound is carried to the ears by the movement of air
What did Leonardo da Vinci develop? - CORRECT ANSWER The idea that sound travels in
waves and the angle of reflection is equal to the angle of incidence
What does the Law of Reflection state? - CORRECT ANSWER when ray of light reflects off a
surface, the angle of incidence is equal to the angle of reflection.
What did Galileo do? - CORRECT ANSWER started more modern studies of sound by
studying vibrations, and demonstrated that frequency of sound waves determines pitch
What did Sir Isaac Newton study? - CORRECT ANSWER speed of sound in air and
demonstrated the first analytic determination of the speed of sound; the theory of velocity.
What is Huygen's Principle? - CORRECT ANSWER each portion in a light wave could be
explained by mini wavelets that combine a wave front
What is the Doppler Effect and who discovered it? - CORRECT ANSWER Christian Johann
Doppler; when a source of wave motion itself moves, the frequency of the emitted wave changes
What did the Curie Brothers Discover? - CORRECT ANSWER piezoelectric effect
What is the Piezoelectric effect - CORRECT ANSWER crystals expand and convert electrical
and mechanical energy
, What is A-mode - CORRECT ANSWER Amplitude modulation; provides very precise
measurements of distances between the probe & the reflector. First ti detect gallstones in animal
tissue. one dimension
What is B-mode - CORRECT ANSWER Brightness modulation, displays the intensity
amplitude for an echo by varying the brightness of a dot to correspond to echo strength. Two
Dimension
What is M-mode - CORRECT ANSWER Motion modulation, displays time along the
horizontal axis and depth along the vertical axis to depict movement.
Why is it important for the DMS program to be accredited? - CORRECT ANSWER follows a
detailed approved curriculum, assures a quality of education and students may take boards 60 days
prior to graduation
Who accredits the DMS program? - CORRECT ANSWER CAAHEP- Commission of the
accreditation of allied heath education programs
Who does Schoolcraft report to directly in regards to the accreditation? - CORRECT
ANSWER JRCDMS- Joint review committee on education in diagnostic medical sonography
What is ARDMS? - CORRECT ANSWER American Registry for Diagnostic Medical
Sonographers
and they recognizes quality candidates and allows them to sit for the register exams, awards,
credentials, and monitors CME's
How many CME's do you need per triennium? - CORRECT ANSWER 30 per triennium
List ways to get CME's - CORRECT ANSWER conferences, working with students, articles
with quizzes
SDMS stands for - CORRECT ANSWER Society of Diagnostic Medical Sonographers
MSS stands for - CORRECT ANSWER Michigan Sonographers' Society