A heavy lump of plasticine floats when in the shape of a boat because the boat shape displaces a greater volume of water than the lump alone. This creates a buoyant force that is sufficient to counteract the weight of the plasticine, allowing it to float.
Iron sinks in water because it is denser than water. However, iron is able to float on the surface of water in certain conditions (such as with a carefully placed thin piece of iron) due to surface tension and the water's ability to hold up lighter objects like certain metals.
No, a piece of iron will sink in water because its density is greater than that of water.
Yes, an iron ship can float because its overall density is less than that of water. The iron ship is shaped in a way that allows it to displace enough water to generate a buoyant force greater than its weight, keeping it afloat.
An iron ball floats on mercury because mercury is much denser than iron. The buoyant force acting on the iron ball due to the displacement of mercury is greater than the gravitational force pulling it downward, causing it to float.
No, a lump of iron pyrite will sink in water.
-- The density of iron near room temperature is around 7.9 gm/cc, whereas at the same temperature, mercury is liquid with a density around 13.5 gm/cc. A lump of iron will float nicely in a bowl of mercury at room temperature. -- Don't forget that aircraft carriers and battleships are also pieces of iron, and that they float nicely in water.
The size of an iron lump is about the size of an elephant child when it is newly born.
Sink
Solid iron will float in liquid mercury. In most liquids it will sink.
Iron will float in oil in most cases. However, for iron to float in oil, it must have a density which is lower than the oil.
It is a "lump" of iron with a mass of one metric ton.
A heavy lump of plasticine floats when in the shape of a boat because the boat shape displaces a greater volume of water than the lump alone. This creates a buoyant force that is sufficient to counteract the weight of the plasticine, allowing it to float.
In a lump of iron, you would find iron atoms. Iron is a pure element composed solely of iron atoms, with each atom containing 26 protons and typically 26 neutrons in its nucleus.
the modern iron has a small "shell" to hold the water in it now if its empty and is in water it may float from the air inside the iron
The surface area is bigger.
Buoyancy!