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    • Graph shows different frequencies of sound waves.
    Rights: Public domain Published 10 May 2011, Updated 4 September 2019 Size: 240 KB Referencing Hub media

    This graph shows different frequencies of sound waves. As the frequency increases, the distance between the peaks of the sine wave graph decrease.

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      ACTIVITY

      Modelling waves with slinkies

      In this activity, students model how sound travels by sending waves along two stretched plastic slinkies tied together. By the end of this activity, students should be able to: understand that ...

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      2. ACTIVITY

      Sound on an oscilloscope

      In this activity, students play different kinds of sounds near a computer’s microphone and watch the resulting visual display created by oscilloscope software. By the end of this activity ...

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      3. ARTICLE

      Measuring sound

      Sound is a pressure wave caused when something vibrates, making particles bump into each other and then apart. The particles vibrate back and forth in the direction that the wave travels but do ...

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