16. In Operating Principle 1, echoes from one pulse appear as:

10. The ultrasound instrument presents returning echoes as:

4. Diagnostic medical sonography uses ultrasound for:

Sonography is accomplished by using a pulse-echo technique. The important information gained from this technique includes the __________ from which each echo originated and the _________ of each echo. From this information, the instrument can determine the echo ___________ and ___________ on the display.

Given the equation A = 2πr2, solve for the variable ‘r’:

Fill in the blank.1540 m/s = ______ km/s

Mathematically, changes in what parameters would cause an increase in the wavelength of a wave?

Rearrange the distance equation (range equation) to solve for time.

Convert 5.6 x 10-4 grams to milligrams.

How deep will the natural focal point be for a crystal with a propagation speed of 4.38 mm/μsec and a thickness of 0.7 mm, if the diameter of the crystal is {d} mm? Use the absolute equation, 2 decimal places