ultrasound physics

4. units of distance divided by time
6. a measure of how "big" or "strong"
9. hand-held part of the ultrasound machine sends sound waves into your body, collects the ones that bounce back and sends them to a computer
11. a sound or series of sounds caused by the reflection of sound waves from a surface back to the listener.
13. measure of how much the volume of the material changes for a given distorting force
14. how many cycles of compression and rarefaction occur per second
16. affected by both the frequency and the propagation velocity

1. the ability of a solid object to return to its original shape after distortion by a force
2. generated by a transducer and sent into the patient
3. the principle of converting energy by applying pressure to a crystal
5. It increases or decreases the strength of the returning ultrasound signals
7. a unit of pressure in the meter-kilogram-second system equivalent to one newton per square meter.
8. transmission of motion, light, sound, etc. in a particular direction or through a medium.
10. logarithmic power ratio
12. mass per unit volume. It is an intensive property:ρ = m/V
15. sound or other vibrations having an ultrasonic frequency