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A finger flicks a loose rubber band, producing a low buzzy twang. Stretched tighter and flicked again, the tone jumps noticeably higher.

C2-1-08 Event Transition · source_body principle: Tension -> Pitch (Mechanics)
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Per-prompt rubric

Basic standards

Visual presence

  • a rubber band
  • a finger

Event: a finger flicks a rubber band

Audio presence

  • a rubber band

Sound: a rubber band twang

Key standards

Visual physical commonsense (V-PC)

  • The rubber band is flicked twice, and between the two flicks it is visibly stretched tighter.
  • The flicked object is a thin elastic rubber band.

Audio physical commonsense (A-PC)

  • The second twang is noticeably higher in pitch than the first twang.
  • The twang sound is the elastic-pluck resonance of a real rubber band.

Cross-modal physical commonsense (AV-PC)

  • Each twang sound aligns in time with a visible flick of the rubber band.
  • The higher-pitched twang corresponds to the visibly tighter rubber band state.
  • The lower-pitched twang corresponds to the visibly looser rubber band state.