Across
- 3. Sound travels through ___ and rarefaction
- 4. Its speed is 1540 m/sec
- 5. Sound travels ____ in a denser medium than a less dense medium
- 7. When the frequency increases, the wavelength ____
- 8. This is measured in volts
- 9. Density is equal to mass over ____
- 10. This acoustic variable is defined as a concentration of force
Down
- 1. When two or more waves are in phase and the amplitude increases, this is known as ____ interference.
- 2. ____ waves result in particle motion that is in the same direction as the wave propagation direction.
- 6. Electromagnetic waves can propagate through a medium or a ____