1. The balance of forces on an immersed bottle is achieved when the buoyant force exerted upwards by the fluid equals the weight of the bottle (and any added weights) acting downwards due to gravity. This results in a state of equilibrium.

    The balance of forces on an immersed bottle is achieved when the buoyant force exerted upwards by the fluid equals the weight of the bottle (and any added weights) acting downwards due to gravity. This results in a state of equilibrium.

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  2. When the upward force exerted by the water (buoyant force) is greater than the weight of the bottle, the bottle experiences a net upward force. This causes it to float on the water's surface or rise upwards if partially submerged until equilibrium is reached.

    When the upward force exerted by the water (buoyant force) is greater than the weight of the bottle, the bottle experiences a net upward force. This causes it to float on the water’s surface or rise upwards if partially submerged until equilibrium is reached.

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  3. The water exerts an upward force known as buoyant force on the bottle when it is immersed, equal in magnitude to the weight of the water displaced by the submerged part of the bottle.

    The water exerts an upward force known as buoyant force on the bottle when it is immersed, equal in magnitude to the weight of the water displaced by the submerged part of the bottle.

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  4. The bottle is pulled downwards in water due to the gravitational force acting on its mass, which is greater than the buoyant force exerted by the water when it is fully submerged.

    The bottle is pulled downwards in water due to the gravitational force acting on its mass, which is greater than the buoyant force exerted by the water when it is fully submerged.

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  5. The force acting on the bottle in the downward direction due to Earth's attraction is called the gravitational force or weight of the bottle. It pulls the bottle towards the Earth's center.

    The force acting on the bottle in the downward direction due to Earth’s attraction is called the gravitational force or weight of the bottle. It pulls the bottle towards the Earth’s center.

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