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The shape of the ship allows it to float. Imagine a ship that was just a big block of steel, If you put that steel block into water, it would sink because it is denser than water. Ships are built with a hollow shape. The amount of steel is the same, but the hollow shape decreases the boat's density. Water is denser than the hollow boat, so the boat floats. Shaping the block into a hollow form increases the volume occupied by the same mass, which results in a reduced overall density. The ship floats because it is less dense than water.
a big heavy steel ship floats on water because the volume is mostly air. trust me its true.
Salt makes the water denser or heavier if you like. the result is that anything including ships will float more easily.
Look at a ship for example... It is made entirely of steel but it manages to stay afloat. The steel ships are filled with air which causes the average density to be less than water's density (1.00 g/ml). If you had a piece of plastic it would just sink because the density is more than water.
Quick and dirty answer: Because they are built to be essentially hollow, they are much larger in volume than the water they displace, and so in effect they are much less dense over all than the water they displace.
The answer depends on the shape of the object. Ships, made from steel, which is denser than water, do float!
The answer depends on the shape of the object. Ships, made from steel, which is denser than water, do float!
The answer depends on the shape of the object. Ships, made from steel, which is denser than water, do float!
archemedes
A material needs a lower density than water to float in water. Ships float in water because their average density is lower than water. The average density includes the steel hull and the air inside the hull.
small water displacment compared to ships size
small water displacment compared to ships size
The shape of the ship allows it to float. Imagine a ship that was just a big block of steel, If you put that steel block into water, it would sink because it is denser than water. Ships are built with a hollow shape. The amount of steel is the same, but the hollow shape decreases the boat's density. Water is denser than the hollow boat, so the boat floats. Shaping the block into a hollow form increases the volume occupied by the same mass, which results in a reduced overall density. The ship floats because it is less dense than water.
Salt water is denser that fresh water, so a swimmer (and ships) float higher in saltwater.
a big heavy steel ship floats on water because the volume is mostly air. trust me its true.
It depends. A steel ship will float just fine, so will an iron one(i.e. Old Ironsides). It all depends on the size, weight, and buoyancy of the ship.
Because they are not solid shapes... they are shaped so as to be lighter than water when you look at their overall volume. It's like a child's balloon. Uninflated, it lies on the ground and doesn't move. But fill it with air and it floats in the air. Suddenly there is less density than there was.