Sound waves are produced by something that (1)__________. Sound waves travel through a material as particles in the material (2)____________ with each other. Sound waves have regions called (3)___________, where particles are closer together, and (4)__________, where particles are farther apart. The distance from one compression to the next, or from one rarefaction to the next is the (5)_________ of the sound wave. Sound waves usually travel (6)__________ in gases than in solids or liquids. The more (7)_________ carried by a sound wave, the larger its (8)_________. The intensity of sound waves is measured on the (9)_________ scale. The (10)___________ of a sound is the human perception of the intensity of the sound waves.
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Answer:
Sound is produced when an object vibrates, creating a pressure wave. This pressure wave causes particles in the surrounding medium (air, water, or solid) to have vibrational motion. ... The human ear detects sound waves when vibrating air particles vibrate small parts within the ear.