Physical Science Chapter 9 - Waves and Sound

  • Humans were making musical instruments to produce sounds around 20,000 years before the wheel and axle were invented!  Instruments gradually improved from simple flutes and drums to modern standards like the violin.
    In this chapter you will learn how about motions, waves and sounds.
     
    Key Questions:
    1) How do we describe back and forth motions?
    2) What is a wave?
    3) What is sound and why is sound a wave?
     

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