Physics 0625 · IGCSE · Kinetic particle model of matter

Kinetic particle model of matter — practice question

Fig. 5.1 shows a metal box containing air at room temperature, 20 ^{\circ}C. No air can enter or escape from the box.

(a)[3]

Describe how the air particles in the metal box move, how far apart they are, and how they are arranged.

(b)[2]

Describe how the motion of the air particles in the box changes as the temperature decreases.

Worked solution & mark scheme

This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “particles move randomly” …