When climbing a high mountain, climbers took an inflated volleyball with them. Has the size of the ball changed?

| April 2, 2021 | education

Let the air pressure in the volleyball sword be p1. At the foot of the mountain, the atmospheric pressure is p2. The pressure difference p1 – p2 determines the size of the sword, or, in other words, the tensile force of the rubber from which the shell of the ball is made. When climbing the top of the mountain, atmospheric pressure decreases, that is: p3 <p2. Since the pressure inside the sword does not change, the pressure difference will be greater at the top of the mountain than at its foot. That is, the rubber will stretch more, and, accordingly, the size of the ball will increase.

The above is true without taking into account the temperature difference (according to the condition of the problem).

Therefore, the correct answer is: the size of the ball will increase.



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