Across
- 5. Force/area or the concentration of force
- 7. These types of waves work in a vacuum
- 8. Beam has a common origin
- 9. The type of energy associated with sound
Down
- 1. Measurement of one full wave cycle
- 2. Diagnostic tool that shows blood flow
- 3. Cycles/second
- 4. Areas of lower density in a medium
- 6. One full wave cycle (measured in seconds)