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Across 2. if the wave subtracts the sound becomes _______. 5. Sound waves with frequencies below 20 hertz. 6. In woodwinds, the different notes are created by shortening or lengthening these. 8. When you play a musical instrument this goes out in all directions. 10. affects loudness of sounds. 12. sounds are produced by _____ of material objects. 14. Wind, Vocal, and Brass instruments are all very similar in that they all use vibrating air passing through a ________ to create the sound. 15. it is a psychological sensation sensed in the brain.

Down 1. loudness is measured in a ____ scale. 3. loudness is ____ (dependent on your point of view). 4. has a high vibration frequency. 7. Sound waves with frequencies above 20,000 hertz. 9. has a low vibration frequency. 11. a dramatic increase in amplitude; to resound or sound again. 13. In _____ instruments, valves and slides are used to create the different notes.