Test Bank for;
Diagnostic Sonography
Chapter 1{Full Textbook}
** Expert-Verified Explanation
** Questions with Verified Answer
** New Edition |Updated
** Guaranteed Pass
** 100% Correct Answers | Graded A+
, Most human hearing ranges between ______ Hz and 20, 20
______ kHz
What is the result of mechanical energy that produces Sound
alternating compression and rarefaction of the
conducting medium as it travels as a wave?
Unit of frequency, equal to 1 cycle per second Hertz
Region of increased particle density Compression
Change in the direction of propagation of a sound wave Rarefaction
transmitted across an interface where the speed of
sound varies
Propagation of energy that moves back and forth or Wave
vibrates at a steady rate
Ultrasound uses short sound pulses at frequencies of 1 to 20
____ to ______ million cycles/sec (MHz) that are
transmitted into the body to examine soft tissue anatomic
structures
Generation of electric signals as a result of an incident Piezoelectric effect
sound beam on a material that has these properties
The _________ converts electrical energy into Transducer
mechanical energy as the sonographic image is
produced
The rate and direction at which sound propagates Velocity
through a medium; the average velocity of sound in soft
tissues is 1540m/sec
What determines how fast sound waves will travel Stiffness and density
through the structure?
The more closely packed the molecules, the Faster
__________ is the speed of sound.
Sound waves travel faster or slower through gas (air)? Slower
Unit used to quantitively express the ratio of two Decibel (dB)
amplitudes or intensities
Used to measure the intensity (strength), Amplitude, and Decibel (dB)
power of an ultrasound wave
Strength of the ultrasound wave measured in decibels Amplitude
Diagnostic Sonography
Chapter 1{Full Textbook}
** Expert-Verified Explanation
** Questions with Verified Answer
** New Edition |Updated
** Guaranteed Pass
** 100% Correct Answers | Graded A+
, Most human hearing ranges between ______ Hz and 20, 20
______ kHz
What is the result of mechanical energy that produces Sound
alternating compression and rarefaction of the
conducting medium as it travels as a wave?
Unit of frequency, equal to 1 cycle per second Hertz
Region of increased particle density Compression
Change in the direction of propagation of a sound wave Rarefaction
transmitted across an interface where the speed of
sound varies
Propagation of energy that moves back and forth or Wave
vibrates at a steady rate
Ultrasound uses short sound pulses at frequencies of 1 to 20
____ to ______ million cycles/sec (MHz) that are
transmitted into the body to examine soft tissue anatomic
structures
Generation of electric signals as a result of an incident Piezoelectric effect
sound beam on a material that has these properties
The _________ converts electrical energy into Transducer
mechanical energy as the sonographic image is
produced
The rate and direction at which sound propagates Velocity
through a medium; the average velocity of sound in soft
tissues is 1540m/sec
What determines how fast sound waves will travel Stiffness and density
through the structure?
The more closely packed the molecules, the Faster
__________ is the speed of sound.
Sound waves travel faster or slower through gas (air)? Slower
Unit used to quantitively express the ratio of two Decibel (dB)
amplitudes or intensities
Used to measure the intensity (strength), Amplitude, and Decibel (dB)
power of an ultrasound wave
Strength of the ultrasound wave measured in decibels Amplitude
