UNDERSTANDING ULTRASOUND PHYSICS FOURTH EDITION EDELMAN REVIEW SHEET 2026 PRACTICE SOLUTIONS GRADED A+

UNDERSTANDING ULTRASOUND PHYSICS
FOURTH EDITION EDELMAN REVIEW
SHEET 2026 PRACTICE SOLUTIONS
GRADED A+

⩥ What is period? Answer: the time it takes to complete a cycle


⩥ Units of period? Answer: unit of time


⩥ What is period determined by? Answer: source


⩥ What is frequency? Answer: number of cycles per second


⩥ What are the units of frequency? Answer: Hz (hertz)


⩥ Frequency is determined by ? Answer: source


⩥ Is period adjustable? Answer: No


⩥ Is frequency Adjustable? Answer: No.

, ⩥ What's the frequency of infrasound? Answer: less than 20 Hz


⩥ What's the frequency of audible sound? Answer: between 20 Hz and
20kHz


⩥ What's the frequency of ultrasound? Answer: greater than 20kHz


⩥ How are period and frequency related? Answer: inversely related and
reciprocal


⩥ Why is frequency important in diagnostic sonography? Answer:
because it affects the penetration and image quality


⩥ What are the 3 bigness parameters Answer: P.I.A power amplitude
intensity


⩥ What is amplitude? Answer: bigness of a wave


⩥ What are the units of amplitude? Answer: any of the acoustic
variables (pg27)


⩥ Amplitude is determined by? Answer: source