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A wooden stick taps a solid wooden board with tight controlled hits. Then taps a hollow wooden box, opening up into a boxy ringing tone.

C2-1-46 Event Transition · source_body principle: Helmholtz Resonance (Mechanics)
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Per-prompt rubric

Basic standards

Visual presence

  • a wooden stick
  • a solid wooden board
  • a hollow wooden box

Event: a stick taps a solid wooden board and a hollow wooden box

Audio presence

  • a wooden board
  • a wooden box

Sound: wooden tap

Key standards

Visual physical commonsense (V-PC)

  • A wooden stick visibly taps a solid wooden board.
  • A wooden stick visibly taps a hollow wooden box.
  • The solid board and the hollow box are distinct objects throughout the clip.

Audio physical commonsense (A-PC)

  • The solid-board taps are tight and dry with no cavity reverb.
  • The hollow-box taps open into a clearly boxy ringing tone with audible cavity resonance.
  • Each tap has the timbre of a wooden percussion strike.

Cross-modal physical commonsense (AV-PC)

  • Each tap onset aligns in time with the visible stick impact on the corresponding surface.
  • The dry timbre is heard during taps on the solid board.
  • The boxy ringing timbre is heard during taps on the hollow box.