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A car drives at steady speed from smooth fresh asphalt onto a rough cracked road. The tire noise turns from a quiet hiss into harsh rumbling and small thumps.

C2-1-39 Event Transition · source_body principle: Material Comparison (Material)
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Per-prompt rubric

Basic standards

Visual presence

  • a car
  • smooth asphalt
  • a cracked road

Event: a car drives across a road surface

Audio presence

  • car tires

Sound: tire noise

Key standards

Visual physical commonsense (V-PC)

  • The car drives continuously across a visible transition from smooth asphalt to cracked road, with consistent wheel rotation and forward motion.

Audio physical commonsense (A-PC)

  • The smooth-asphalt tire noise has a quiet hiss and the cracked-road tire noise has distinctly harsh rumbling with small thumps.

Cross-modal physical commonsense (AV-PC)

  • The tire noise character changes at the moment the car visibly crosses onto the cracked road.
  • The quiet hiss corresponds to the car driving on smooth asphalt.
  • The harsh rumbling with small thumps corresponds to the car driving on the cracked road.