Physics Quiz 2025-26

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1. Name the type of artifact noted by arrow: *

Edge artifact

Posterior acoustic enhancement

Shadowing

Mirror

2. When electrical energy is converted to mechanical energy or vice versa, what is it called? *

Sublimation effect

Piezoelectric effect

Coriolis effect

Bernoulli effect

3. What is the correct match? *

Low frequency = high resolution, best for deeper structures

High frequency = high resolution, best for superficial structures

High frequency = low resolution, best for deeper structures

Low frequency = low resolution, best for superficial structures

4. What is the range of frequencies for diagnostic ultrasound? *

20 Hz to 20 KHz

20 KHz to 2 MHz

2 MHz to 20 MHz

5. Name the type of artifact noted by arrow: *

Edge artifact

Posterior acoustic enhancement

Shadowing

Mirror

Sidelobe

6. Where is another place you commonly see the same artifact from question 5?

Superior to the diaphragm

Beneath the ribs

Deep to the bladder

Within the posterior chamber of the eye

Clear selection

7. Choose the best probe for each scan type/diagnosis *

Early pregnancy with vaginal bleeding

Ejection fraction

Peripheral IV

Cholecystitis

8. Select all correct responses; M-mode: *

Time is represented on x-axis

Produces red color with flow towards the probe and blue color with flow away from the probe

Depicts the motion or deflection of the tissue relative to the transducer

Can be used in echocardiography to assess systolic ejection fraction

Required

9. Higher ________ increases resolution of ultrasound images *

Depth

Zoom

Gain

Frequency

10. Select the following correct responses *

Ultrasound images are generated based on the depth and direction of the returning echoes

Depth is determined by the time elapsed between the signal and the received echo

Echo intensity is proportional to grayscale assignment on the screen (increased intensity=white, decreased=black)

Ultrasound images are clear when there is air in the tissue

Required

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