A bar of steel sinks in water because its density is higher than that of water, causing it to displace less water than its own weight. A boat floats because its shape and design displace enough water to create an upward force called buoyancy that is greater than its weight.
A pencil floats, a human no float, a feather floats, paper floats, ice floats, keys do not float, rocks do not float, coins do not, flip flops float. Second answer: I think you meant to ask, 'What floats and then some time later starts to sink. If that is what you meant, the answer is: There are absorbent substances which float when dry, then after absorbing water while they are floating, they increase in density and then sink.
A stone sinks because it is denser than water, so the upward buoyant force is not enough to support its weight. A boat floats because its shape and materials displace enough water to create an upward buoyant force that is greater than its weight, allowing it to stay afloat on the water.
No, steel cans do not float because steel is denser than water. This means that the weight of the steel can is greater than the buoyant force acting against it, causing it to sink in water.
density is mass divided by volume. when the same mass of an object has larger volume, i'ts density is relatively smaller. as in the case of a floating steel ship, the overall volume of the ship is large, making its density small. and you all know that if the density of an object is less than the density of water, the object will float.
Density is the property that causes a ball to sink and a boat to float. If an object is denser than the liquid it is placed in, it will sink, while if the object is less dense than the liquid, it will float.
It really depends on the shape. A cube of steel will sink but a boat displaces less water due to its shape and floats.
It floats, but after a while silk will sink.
The water extracted by the wood log while floating is of equal weight of the wood or more. For this reason, the log of wood floats while a steel needle sinks.
The clay boat (like a steel ship) displaces its own weight in the water. So, as long as the sides of the clay boat (or steel ship) is above the water level, it will float. A solid piece of clay will (like a stone) sink immediately.
Density of a steel ball is greater than the den. Of h2o - it sinks similarly den. Of a toy ship is less than the den. Of h2o - it floats
because it has insulation in itsunny day 45
because inside the boat has air. think when u blow up a ballon it floats same with a boat the out side of the boat is metal
A pencil floats, a human no float, a feather floats, paper floats, ice floats, keys do not float, rocks do not float, coins do not, flip flops float. Second answer: I think you meant to ask, 'What floats and then some time later starts to sink. If that is what you meant, the answer is: There are absorbent substances which float when dry, then after absorbing water while they are floating, they increase in density and then sink.
because wood floats and too much rubber will make the darn'ed boat sink
Floats
It's possible that a ship of steel will not sink as well. But if it will sink, it would be because the density of steel is greater then the density of water, while air's density is lower then water's.
A stone sinks because it is denser than water, so the upward buoyant force is not enough to support its weight. A boat floats because its shape and materials displace enough water to create an upward buoyant force that is greater than its weight, allowing it to stay afloat on the water.