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A bell is struck and rings steadily. Then a hand presses firmly against the bell surface and the tone cuts off abruptly.

C2-3-19 Event Transition · source_radiation principle: Resonance Damping (Mechanics)
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Per-prompt rubric

Basic standards

Visual presence

  • a bell
  • a hand

Event: a hand presses on a struck bell

Audio presence

  • a bell

Sound: bell ring

Key standards

Visual physical commonsense (V-PC)

  • A bell is visibly struck with a clapper or external mallet during the clip.
  • A hand visibly presses on the bell surface while the bell is still ringing.

Audio physical commonsense (A-PC)

  • A clear ringing tone from the bell is audible after the strike.
  • The ring cuts off abruptly once the hand contacts the bell, with no residual ring.

Cross-modal physical commonsense (AV-PC)

  • The ring onset in the audio aligns in time with the visible strike on the bell.
  • The abrupt end of the ring coincides in time with the visible moment the hand contacts the bell surface.