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A metal pot is struck with a spoon and rings clearly. A folded towel is then pressed against the side and the ringing cuts off.

C2-3-20 Event Transition · source_radiation principle: Resonance Damping (Mechanics)
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Per-prompt rubric

Basic standards

Visual presence

  • a metal pot
  • a spoon
  • a folded towel

Event: a folded towel is pressed against a struck metal pot

Audio presence

  • a metal pot

Sound: metal pot ring

Key standards

Visual physical commonsense (V-PC)

  • A metal pot is visibly struck with a spoon during the clip.
  • A folded towel is visibly pressed against the wall of the ringing pot.

Audio physical commonsense (A-PC)

  • A clear ringing tone from the pot is audible after the spoon strike.
  • The ring cuts off abruptly the instant the towel contacts the pot, with no residual ring.

Cross-modal physical commonsense (AV-PC)

  • The ring onset in the audio aligns in time with the visible spoon strike.
  • The abrupt end of the ring coincides in time with the visible moment the towel contacts the pot.