The outlet of a bicycle pump is used to inflate a football as illustrated in the diagram above. Why does the pressure of the air inside the pump increases as the pump handle is slowly pushed downward at constant temperature?
-
A.
momentum of the air molecules are increased -
B.
volume occupied by the molecules are increased -
C.
frequency of collision of the air molecules with the walls of the pump is increased -
D.
more air molecules are collidin with one another in the system