How to decide which object will float or not in water?

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Abhishek Sawant

Abhishek S ( M.Pharm.MBA) tutor for IB/International/IGCSE

it depends on the density of object
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If density of object is greater than density of water it will sink. If the density of object is less than the density of water then it will float.
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Density of floating object should be less than water..to float
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Object will float or sink depends on its own density and the density of the liquid it is placed in. In the case of water, an object with a density less than 1 g/cm3 will float. In other we can say that A 1 g object will sink until it displaces 1 g of water. This is independent of its size or shape. Since...
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Object will float or sink depends on its own density and the density of the liquid it is placed in. In the case of water, an object with a density less than 1 g/cm3 will float. In other we can say that A 1 g object will sink until it displaces 1 g of water. This is independent of its size or shape. Since water has a density of 1 g/cm3, a 1 g object will displace 1 cm3 of water. read less
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Perfect Tutor

A 1 g object will sink until it displaces 1 g of water. This is independent of its size or shape. Since water has a density of 1 g/cm3, a 1 g object will displace 1 cm3 of water.
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Objects which have air inside them or able displace water is able to float
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This depends on the density of object. If the density of object is more than density of water it will sink and if the density of object is less than density of water it will float. Density means tightness of the intermolecular bonding of an object. floating and sinking also depends on how much water...
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This depends on the density of object. If the density of object is more than density of water it will sink and if the density of object is less than density of water it will float. Density means tightness of the intermolecular bonding of an object. floating and sinking also depends on how much water an object can displace. if an object displaces an amount of water equal to its weight, than it will sink. For example, a stone and a piece of thermocol with same dimensions, the volume of both objects is same but their density is unequal. Density of stone is more than the piece of thermocol and water and it can displace amount of water equal to its weight. Therefore it waill sink in water. Whereas density of thermocol is less than that of stone but more than water but still it does not sink in water because it can not displace equal amount of water as its weight. this is because, The thermocol contains large number of tiny spaces filled by air. This makes its average density lower than the water. Therefore it floats. read less
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Blow up a balloon and float it on water. It will not sink very far because it is not very heavy. If you look really close, where the balloon touches the water, you can see a little dent in the water under the balloon. That's the place where the water is pushed out of the way. Floating or sinking has...
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Blow up a balloon and float it on water. It will not sink very far because it is not very heavy. If you look really close, where the balloon touches the water, you can see a little dent in the water under the balloon. That's the place where the water is pushed out of the way. Floating or sinking has to do with the amount of water pushed out of the way. Any boat will sink if you put enough stuff inside it Small, heavy things like a marble or a rock cannot float because they cannot push enough water out of the way to be the same as how much they weigh.So remember, anything that floats weighs the same as the water pushed out of the way. read less
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If the density of object/substance is equal and less than the water, in this 2 situation/condition,it will float in water
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There are two ways. 1. If density of an object is less than that of water it will float.e.g oil. 2.Floating of an object also depends on the buoyant force being applied on the object. If it is equal to the weight of water displaced then the object will float. Like in case of ships.
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