Physics 0625 · IGCSE · Kinetic particle model of matter

Kinetic particle model of matter — practice question

A car driver checks the pressure of the air in the tyres. After a long journey, he checks the pressure again. The reading is higher. Which row shows what has happened to the speed of the air molecules and the temperature of the air in the tyres?

  • Aspeed of molecules: decreases; temperature: decreases
  • Bspeed of molecules: decreases; temperature: increases
  • Cspeed of molecules: increases; temperature: decreases
  • Dspeed of molecules: increases; temperature: increases

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