When the pump removed the air in the bell, the balloon ______________.
Responses
A contracted
B expanded
A contracted
To determine what happens to the balloon when the pump removes the air in the bell, we need to understand the basic principles of air pressure and how it affects the balloon.
When the pump removes the air in the bell, it creates an area of low pressure inside the bell. At the same time, the air pressure outside the balloon remains relatively higher. According to Boyle's law, which states that the pressure of a gas is inversely proportional to its volume, the balloon will respond to this pressure difference.
In this case, since the air pressure inside the bell is lower than the air pressure outside the balloon, the balloon will expand. The higher air pressure outside pushes against the balloon walls, causing it to stretch and increase in volume.
Therefore, the correct answer is:
B) expanded