SCIENCE - DOPPLER EFFECT

SCIENCE - DOPPLER EFFECT

Storyboard Text

  • NEEE-NORRR NEEEE-NORRR
  • NEEE-NORRR NEEE-NORRR
  • Katie, why does the ambulance siren sound different as it drives further away to when it comes closer?
  • Well Matt...
  •  It is caused by the Doppler Effect. As the ambulance approaches the man, the wavelength is shorter, making the siren higher pitched.
  • NEEE-NORRR NEEE-NORRR
  • Wavelength
  • Wavelength
  • Katie and Matt are sitting outside playing cards, and a high pitched ambulance siren comes towards them. 
  • Whereas when the ambulance moves away from the man, the wavelength is longer, making it a lower frequency.
  • Wavelength
  • NEEE-NORRR NEEEE-NORRR
  • The ambulance siren gets lower in pitch. Matt asks Katie a question.
  • Wavelength
  • Katie shows Matt a photo to explain the doppler effect.
  • NEEE-NORRR NEEEE-NORRR
  • I win!
  • Katie explains what happens when an ambulance drives away.
  • Matt thanks Katie for helping him understand.
  • Wow, that's so cool! Thanks!
  • The ambulance siren gets lower as it drives away.
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