Edelman: Comprehensive Exam 2023 (A+ GRADED)

sound waves are? correct answers longitudinal, mechanical the speed of US in soft tissue is closest to: correct answers 1,500 m/s (1,540 m/s) the frequency closest to the lower limit of US is: correct answers 15,000 Hz which is not an acoustic variable? correct answers intensity the effects of soft tissue on US are called: correct answers acoustic propagation properties all of the following are true except: correct answers two waves with identical frequencies must interfere constructively put in decreasing order: correct answers deca, deci, centi, micro ______________ is the time to complete one cycle correct answers period which of the following sound waves is ultrasonic and least useful in diagnostic imaging? correct answers 30 KHz what is the frequency of a wave with 1msec period? correct answers 1 kHz _____________ is the distance covered by one cycle correct answers wavelength Which of the following is determined by the source and the medium? correct answers range resolution propagation speed = ________ x wavelength correct answers frequency as a result of ____________ the propagation speed increases correct answers decreasing compressibility and decreasing density put in decreasing order of propagation speed correct answers solid, liquid, gas if the frequency of US is increased from 0.77 MHz to 1.54 MHz, what happens to the wavelength? correct answers halved a sound wave's frequency is 10MHz. the wave is traveling in soft tissue. what is its wavelength? correct answers 0.15 mm if the frequency of an US wave is doubled, what happens to the period? correct answers halved if the frequency of US is increased from 0.77 MHz to 1.54 MHz, what happens to the propagation speed? correct answers remains the same