Why air bubbles in a liquid moves in upward direction
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The buoyant force comes from the pressure exerted on the object by the fluid. Remeber when the depth decreased the pressure also increases. the pressure on the bottom of an object is always larger than the force on the top - hence the net upward force. The buoyant force is present whether the object floats or sinks.
This buoyant force is nothing but an upward force.Which pushes the air bubbles to move upwards.
Answer:Bubbles are comprised of gases, which have a lesser density than water. Since they are less dense, they get pushed up to the surface, and they rise, lighter than the liquid around them. This is just like helium in air; helium is lighter than air, so it rises, pushed to the top by the pressure around it.
Explanation:
Bubbles are comprised of gases, which have a lesser density than water. Since they are less dense, they get pushed up to the surface, and they rise, lighter than the liquid around them. This is just like helium in air; helium is lighter than air, so it rises, pushed to the top by the pressure around it.