(a(i))[1]
Suggest what happens to the balloon as the air inside it becomes hotter than the surroundings.
(a(ii))[3]
Use molecular ideas to explain your answer to (a)(i).
(b)[4]
Calculate the pressure on the pump handle. Include the unit.
Physics 0625 · IGCSE · Kinetic particle model of matter
Kinetic particle model of matter — practice question
A student sets a balloon containing air beside a window, as illustrated in Fig. 4.1. The Sun heats the air inside the balloon.
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