correct answers 100% 2026
Ultrasound velocity is higher in denser tissue?
True/False - Correct Answers True
When individual ultrasound waves combine, the process is called
1. Attenuation
2. Interference
3. Diffusion
4. Reflection - Correct Answers 2. Interference
When ultrasound waves return directly after interacting with an interface, the process is called
1. Attenuation
2. Interference
3. Diffusion
4. Reflection - Correct Answers 4. Reflection
The conversion of mechanical impulses (sound waves) to an electric potential is a result of
1. The Doppler Effect
2. The Piezoelectric Effect
3. Curie's Law
4. Faraday's Law - Correct Answers 2. The Piezoelectric Effect
The frequency of ultrasound is measured in which unit? - Correct Answers Hertz (Hz) - within
the range of 1-20MHz
, What is the velocity of sound through air? - Correct Answers Approximately 300m/s
What is the velocity of sound through soft tissue? - Correct Answers Approximately 1540m/s
What is the velocity of sound through bone? - Correct Answers Approximately 4080m/s
Which of the following describes an ultrasound wave?
1. Can be transmitted through a vacuum
2. Electromagnetic wave
3. Mechanical vibration wave
4. Emission of oscillating particles - Correct Answers 3. Mechanical vibration wave
What can an ultrasound transducer do?
1. convert electrical signal to ultrasound
2. convert sound into ultrasound
3. convert ultrasound into sound
4. convert ultrasound into electrical signal - Correct Answers 1. and 4.
Transducers can convert electrical signals into ultrasound and ultrasound into electrical signals
In increasing order, which of the following tissues transmit ultrasound fastest?
Blood, Air, Muscle, Bone, Fat - Correct Answers Air, Fat, Blood, Muscle, Bone
As an ultrasound passes, tissues move with the mechanical wave. The point of highest
concentration is called