Across
- 2. A term describing a structure or tissue that produces less echoes on an image compared to another
- 4. Typically measured in seconds
- 6. Example of a mechanical longitudinal wave
- 7. A term describing a structure or tissue that produces more echoes on an image compared to another
- 11. How many times an event occurs per time
- 13. Unit commonly used to measure pressure
- 15. Calculated as Mass (kg) per volume (m3)
- 17. The rate at which the wave propagates through a medium
- 21. A term that describes the absence of echoes
- 22. The speed of sound through this medium is 1540 m/s
Down
- 1. This wave type propagates by particle compression and refraction that results in particle motion parallel to the wave direction
- 3. In the compression phase of propagation this increases
- 5. This wave type will work in a medium or a vacuum
- 8. As a wave travels through a medium some of the energy is loss to this
- 9. Pressure, density, temperature, and particle motion are all examples of
- 10. A tissue or structure that reflects sound waves would be considered
- 12. The speed of sound through this medium is 1484 m/s
- 14. A wavelength defines the completion of one of these
- 16. This wave type needs a medium
- 18. This effect is the principle of converting energy by applying pressure to a crystal
- 19. The particle motion of this wave is perpendicular to the propagation direction of the wave
- 20. Measurement of wave frequency