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Science
Chapter 13 lesson 4 Sound waves
Question | Answer |
---|---|
vibration | sounds that are produced by a back and forth motion. |
matter | anything that has mass and takes up space |
sound wave | the vibration that spreads away from a vibrating object, the energy from the object carries the energy in all directions |
compression | the part of a sound wave where molecules are crowded together |
rarefraction | the part of a sound wave where molecules are spread apart |