Ultrasound Practice Questions And Answers( Download) Ultrasound velocity is higher in denser tissue? True/False - True When individual ultrasound waves combine, the process is called 1. Attenuation 2. Interference 3. Diffusion 4. Reflection - 2. Interference When ultrasound waves return directly after interacting with an interface, the process is called 1. Attenuation 2. Interference 3. Diffusion 4. Reflection - 4. Reflection The conversion of mechanical impulses (sound waves) to an electric potential is a re sult of 1. The Doppler Effect 2. The Piezoelectric Effect 3. Curie's Law 4. Faraday's Law - 2. The Piezoelectric Effect The frequency of ultrasound is measured in which unit? - Hertz (Hz) - within the range of 1 -
20MHz What is the velocity of sound throug h air? - Approximately 300m/s What is the velocity of sound through soft tissue? - Approximately 1540m/s What is the velocity of sound through bone? - 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 - 3. Mechanical vibration wave What can an ultrasound transducer do? 1. convert electrical signal to ultrasound 2. convert sou nd into ultrasound
20MHz What is the velocity of sound throug h air? - Approximately 300m/s What is the velocity of sound through soft tissue? - Approximately 1540m/s What is the velocity of sound through bone? - 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 - 3. Mechanical vibration wave What can an ultrasound transducer do? 1. convert electrical signal to ultrasound 2. convert sou nd into ultrasound
