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A needle doesn't float because there is very little air in a needle. Metal is much more dense than wood, which is what most boats are made of. When a boat is made of metal, there are air stores inside of the boat that keep it afloat.

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Why will a heavy lump of plasticine float when its in th shape of a boat?

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.


Why is it inaccurate to say that all heavy objects will sink in water?

It is inaccurate because whether an object sinks or floats in water depends on its density. Objects with a density greater than that of water will sink, while those with a density less than water will float. Size and weight alone do not determine whether an object will sink or float.


Can you explain why a steel boat floats on water, but a steel block does not?

A steel boat floats on water because of its shape and displacement of water, which creates buoyancy. The boat's hollow structure allows it to displace enough water to counteract its weight, making it float. In contrast, a solid steel block is too dense and heavy to displace enough water to float.


how can wood float on oil but not a bottle?

ans.1. wood can be float on oil because it is a thick, hard, and heavy object. 2.the bottle can not float on oil because it is not thick, hard, and, not heavy object. that's why it can not float


Why can big heavy steel ships float on water?

Big heavy steel ships can float on water because of a principle called buoyancy. The weight of the water displaced by the ship is greater than the weight of the ship itself, causing it to float. The shape of the ship's hull also plays a role in distributing the weight evenly, allowing it to stay afloat.

Related Questions

Why a needle does not float whereas a heavy ship floats?

Needles don't float because metal is very dense and contains no air. A boat is either made of porous wood which is lighter than water, or metal with air reserves to keep it afloat.


Why will a heavy lump of plasticine float when its in th shape of a boat?

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.


Why is it inaccurate to say that all heavy objects will sink in water?

It is inaccurate because whether an object sinks or floats in water depends on its density. Objects with a density greater than that of water will sink, while those with a density less than water will float. Size and weight alone do not determine whether an object will sink or float.


Can you explain why a steel boat floats on water, but a steel block does not?

A steel boat floats on water because of its shape and displacement of water, which creates buoyancy. The boat's hollow structure allows it to displace enough water to counteract its weight, making it float. In contrast, a solid steel block is too dense and heavy to displace enough water to float.


how can wood float on oil but not a bottle?

ans.1. wood can be float on oil because it is a thick, hard, and heavy object. 2.the bottle can not float on oil because it is not thick, hard, and, not heavy object. that's why it can not float


Why can big heavy steel ships float on water?

Big heavy steel ships can float on water because of a principle called buoyancy. The weight of the water displaced by the ship is greater than the weight of the ship itself, causing it to float. The shape of the ship's hull also plays a role in distributing the weight evenly, allowing it to stay afloat.


Would the space shuttle float on water?

It should, it's air tight. An Aircraft carrier floats and it's hugh. Any rocket scientists out there?


Why does a styrofoam ball floats in water?

Styrofoam is lighter than water, so it floats. In nature, heavy objects are more effected by gravity, so they are forced down.


Will egg float in water?

no because they are too heavy to float .


How can you make a bottle float then sink then float?

A bottle, though heavier than water, can be made to float by trapping air inside of it. This same bottle can be made to sink by filling it with water, or a substance heavier than water. It can again float by emptying it and trapping air in it.


Why does sulfur float in water?

Sulfur is less dense than water, so it floats on top. This is because the atoms in sulfur are not tightly packed together, making it less heavy per unit volume compared to water.


How is salt important in making heavy objects float?

dissolved salt increases the density of solution than the density of heavy metal, which help the heavy substance to float