Experiment library/Sound waves
Middle School Physics Foundations

Sound: Pitch, Loudness & Speed

Make an invisible longitudinal wave measurable. Follow particle motion, compare media, and use two microphones to calculate sound speed from a real arrival delay.

  • Solver-linked compressions, rarefactions, and wavefront
  • Two synchronized microphone pressure traces
  • Live pitch, pressure, wavelength, speed, and delay readings
  • Air, water, and steel reference-medium presets
  • Six editable explanation steps for a 15-minute lesson
  • 16:9 and 9:16 canvases with zoom and fullscreen
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Unlock all ten released experiments in Middle School Physics Foundations, plus every classroom-ready experiment added to this pack.

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Science Studio sound-wave experiment showing a loudspeaker, longitudinal particle motion, two microphones, and synchronized pressure traces
Actual experiment outputSee what the particles do, what the sound carries, and how the same signal reaches two microphones at different times.