The outlet of a bicycle pump is used to inflate a football as illustrated in...
PHYSICS
WAEC 2013
The outlet of a bicycle pump is used to inflate a football as illustrated in the diagram below. 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
Correct Answer: C. frequency of collision of the air molecules with the walls of the pump is increased
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