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Across 4. a material that a wave transfers energy through 6. Let’s you know that the source of a sound is moving toward or away from you 9. Measurement for sound intensity 10. highest point of a wave 11. spread apart portion of a compressional wave 12. bending of a wave as it passes around a barrier 13. bending of a wave as it moves from one 15. matter moves at right angles to the direction the wave travels 16. ability of an object to vibrate by absorbing energy at its natural frequency

Down 1. matter moves in same direction as wave travels 2. measure of the energy in a wave 3. distance between one point on a wave and the nearest point just like it 5. lowest point of a wave 7. how many wavelengths pass a fixed point each second 8. when waves continuously interfere with each other 14. a repeating disturbance that transfers energy through matter or space