(a(i))[1]
State how the pressure of the air in the bottle changes.
(a(ii))[4]
Explain, using ideas about gas molecules, why the pressure of the air in the bottle changes.
(b)[3]
Calculate the pressure the bottle exerts on the table. State the unit.
(c(i))[1]
Calculate the area of the circle.
(c(ii))[1]
Explain why the bottle in Fig. 5.2 produces a greater pressure on the table than the bottle in Fig. 5.1.