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Sound loading

Longitudinal vibrations through the air are perceived by us as sounds.

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Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.
  • Video
    Sound Waves

    Sound Waves

    by CK-12 //basic
    Be amazed by how different frequencies of sound can split the grains into different patterns. (You may want to turn down the volume before watching this video.)
    This indicates how strong in your memory this concept is
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