K.C.S.E Physics Q & A - MODEL 2008PP1QN12

K.C.S.E Physics Q & A - MODEL 2008PP1QN12

​Fig. 6 shows a sheet of paper rolled into a tube.

​When a fast stream of air is blown into the tube as shown in the diagram the paper tube collapses. Explain the observation.

answer

• This reduces air pressure inside the tube, pressure from  outside is greater than inside/ hence pressure difference between inside and  outside causes it to collapse.