Atmospheric Pressure

What happens to a balloon when it is submerged in water?

When an air-filled balloon is placed underwater, the water (which has higher pressure than the air) exerts a force on all sides of the balloon. The pressure from the water causes the air to compress inside the balloon. The deeper the balloon is taken into the water, the greater the pressure, and therefore, the smaller the balloon will become. The pressure from the water will compress the balloon until the air pressure within the balloon can supply an equal amount of force against the water.


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