Elephant. :)
When the internal pressure in a balloon falls, the balloon get smaller and less buoyant.
A hydrogen balloon rises due to the buoyant force that is exerted on it by the surrounding air. As it ascends, the air becomes less dense, causing the buoyant force to decrease until it eventually matches the weight of the balloon, resulting in it reaching a point of equilibrium and no longer rising.
The buoyant force on a hot air balloon is equal to the weight of the air displaced by the balloon. When the air inside the balloon is heated, it becomes less dense than the surrounding air, causing the balloon to rise. The buoyant force allows the balloon to float in the air.
Yes, hot air balloons are less dense and therefore buoyant ============================================ Hot air balloons are buoyant to the extent that the weight of the hot air in the balloon is lighter than the free air. When the difference is more than the weight of the balloon and its contents it will be buoyant and will ascend.
The buoyant force exerted on the toy balloon by the surrounding air is equal to the weight of the air displaced by the balloon. This force is calculated using Archimedes' principle, which states that the buoyant force is equal to the weight of the fluid displaced by the object. The buoyant force is counter to the force of gravity and will keep the balloon floating in the air.
Under water they are as buoyant as each other but on land the balloon will float away and the Styrofoam will stay.
A balloon filled with helium rises until it reaches a point in the atmosphere where the density of the surrounding air equals the density of the helium inside the balloon. At this point, called buoyant equilibrium, the balloon stops rising because the forces of gravity pulling it down are balanced by the buoyant force pushing it up.
We know from the ideal gas laws that when you heat a gas under constant pressure, it will expand. (In a hot air balloon, the air that is heated is not in a rigid container, but in a balloon that expands with the expanding gas; the pressure it is under is only the atmospheric pressure.) The expanded gas will then have a lower density and will therefore be bouyant in air, and therefore able to lift a balloon.
No, it actually might decrease due to balloon being compressed by pressure. Floating objects are governed by Archimedes Principle which states that the weight of a floating object is equal to the water it displaces. A corollary of Archimedes Principle is that the buoyant force acting on an object is equal to the volume of water displaced. Therefore, when a balloon is compressed as it submerges it displaces less water and the buoyant force decreases proportionately.
Because the pressure weighing down on the the balloon is greater than the pressure protruding from the balloon, the dominant force will cause the balloon to pop. This strictly depends on the amount in weight the water has on it, since the balloon can rise and become buoyant if not descended sufficiently.
a small helium balloon :) i think.... i dont actually know the answer i just know that a small helium balloon will be very buoyant :)
The magnitude of a buoyant force on a balloon depends on the size of the balloon. In other words, the force will be either big or small depending on the correlating size of the balloon in use with the experiment.