Physics 0625 · IGCSE · Kinetic particle model of matter
Kinetic particle model of matter — practice question
In this experiment, a heater transfers thermal energy to a substance. At the start, the substance is in the solid state. Heating continues until it changes into a gas. The way the substance's temperature changes with time is shown in Fig. 4.1.
(a(i))[1]
Give the state of the substance between A and B on Fig. 4.1.
(a(ii))[2]
State the process occurring at: A ........................................................ B ........................................................
(b)[3]
Predict how the temperature of the substance changes with time. Draw your answer on Fig. 4.1.
(c)[4]
Describe the arrangement and movement of the molecules in a solid and in a gas. Record your answer in Table 4.1.
Worked solution & mark scheme
This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: “liquid” …