Physics 0625 · IGCSE · Pressure

Pressure — practice question

The diagram illustrates a rubber toy containing air. When a child sits on the toy, the toy’s volume gets smaller. The temperature of the air inside the toy remains constant. How does the air pressure in 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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