Physics 0625 · IGCSE · Pressure

Pressure — practice question

The diagram depicts a rubber toy filled with air. A child sits on the toy, causing its volume to decrease. The temperature of the air inside the toy stays the same. How does the air pressure inside the toy change, and why?

  • Apressure decreases; air molecules move more slowly
  • Bpressure decreases; air molecules strike the rubber less frequently
  • Cpressure increases; air molecules move more quickly
  • Dpressure increases; air molecules strike the rubber more frequently

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