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It's the shape. An object will float when the weight of the water it displaces is equal to the weight of the object. With the right shape, an object will displace its own weight of water before it reaches the point where it submerges. For example, a carrier ship launched into the sea will sink until the weight of the water it displaces is equal to the weight of the carrier. It will sink deeper and deeper, displacing more water as it is loaded with more stuff. It is possible to load a ship down until it simply sinks. And it is also possible to shape a rock to float. This usually involves removing enough material to where it is "hollowed out" because this removes enough weight to where the amount of water pushed away as it enters the water is less than the weight of the rock.
What else can I help you with?
What are objects will sink and what objects float?
Objects that are denser than water will sink, such as rocks, metal objects, and certain types of wood. Objects that are less dense than water will float, such as plastic bottles, rubber ducks, and foam.
Does the density of a rock cause it to sink or float in water?
Density describes mass per unit volume. Pretty much all rocks will sink unless there is air in it
What can float or not float?
Objects that are less dense than the liquid they are placed in will float, while objects that are denser will sink. Some examples of things that float are wood, plastic, and foam, while examples of things that sink are metals, rocks, and most plastics. The shape and volume of an object also play a role in determining if it will float.
What floats and does not float?
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.
What Things that sink?
Objects that are denser than the liquid they are placed in will sink. For example, rocks, metals, and most types of plastic will sink in water. However, objects like wood or foam, which are less dense than water, will float.
Is there any data about why do rocks sink and supertankers float?
Yes, the data dates back to the Greek mathematician, Archimedes. He discovered that when the mass of an object placed on the water is less than the mass of the water it displaces that object will float. Supertankers cover much area with their mass (thus displacing much water), while rocks generally (with the exception, for example, of pumice) do not.
Why do some rocks float while other rocks sink?
the density
Can setimentary rocks float?
No they will sink or break apart
Do all rocks sink?
It depends on the type of rock. A rock like sandstone would not sink if it is a small peice. Small rocks can float. That's when its called silt.
Why do rocks sink and rubber balls float in a swimming pool?
Whether an object sinks or floats depends on the objects buyoncy. If an object has a higher buoyancy then water it will generally sink, and less it will float.
Which physical property could be used to separate balsa wood from rocks?
you can put the mixture in water, the wood will float and the rocks will sink.
What are objects will sink and what objects float?
Objects that are denser than water will sink, such as rocks, metal objects, and certain types of wood. Objects that are less dense than water will float, such as plastic bottles, rubber ducks, and foam.
Do clothes float or sink?
it will float as long as it is not fully covered water.
What can float and what can sink?
Hmmm. Canned/Tinned fruit will most certainly sink. Most fruits straight off from the tree will float. However, if the fruits are not ripe, they might sink as they are very dense. A coconut will most certainly float. A packet of biscuits (unopened) will float for a long time. Oatmeal flakes will float for a while, then sink to the bottom. Potatoes and carrots will sink. Lettuce and cabbage will float Regards.
Does the density of a rock cause it to sink or float in water?
Density describes mass per unit volume. Pretty much all rocks will sink unless there is air in it
What can float or not float?
Objects that are less dense than the liquid they are placed in will float, while objects that are denser will sink. Some examples of things that float are wood, plastic, and foam, while examples of things that sink are metals, rocks, and most plastics. The shape and volume of an object also play a role in determining if it will float.
Do rocks float on mercury?
No, rocks are denser than mercury, so they would sink in mercury. Mercury is a very dense liquid at room temperature, so objects that are less dense than mercury will float on it.
