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A person claps gently, producing a soft pat. Then claps with full force, producing a loud sharp crack.

C2-2-04 Event Transition · source_excitation principle: Strike Force -> Loudness (Mechanics)
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Per-prompt rubric

Basic standards

Visual presence

  • a person
  • hands

Event: a person claps hands

Audio presence

  • hands

Sound: a hand clap

Key standards

Visual physical commonsense (V-PC)

  • The person claps their hands at least twice, first gently and then with clearly more force, with the two hands visibly meeting on each clap.

Audio physical commonsense (A-PC)

  • The forceful clap is noticeably louder than the gentle clap.
  • Each clap sound is a real hand-on-hand clap.

Cross-modal physical commonsense (AV-PC)

  • Each clap sound aligns in time with the visible contact of the two hands.
  • The louder clap corresponds to the forceful hand contact.
  • The quieter clap corresponds to the gentle hand contact.