Helium inhalation

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Back to 3D - Wave motion
PIRA index: 3B30.50

Description

The inhalation of helium causes the demonstrator's voice to become high pitched due to the molecular mass of helium compared to air.

Equipment

  • helium gas (balloon)
  • willing participant

Instructions

Have the participant inhale the balloon full of helium. Their voice will become higher pitched due to helium having a lower molecular mass than air.

Keywords

helium, high-pitch, voice

Images & Movies

  • Figure1

Récupérée de « https://demosdev.physique.uottawa.ca/w/index.php?title=Helium_inhalation&oldid=578 »