Is there a denser than water plastic?
Density of water 1.00 gm/ccTheoretically, for any material that denser than 1.00 and it would sink into water.There are many plastics that with density above 1.00 gm/cc, such as:POM 1.42PC 1.20Nylon 1.13PET 1.33PVC 1.44For modified/filled/reinforced plastics, there haveABS 30% GF 1.28POM 20% GF 1.55Nylon 30% GF .136PC 30% GF 1.42The densest plastic I ever compounded is PP with 70% barium sulfate, density of 2.00 gm/cc.For special application, there have metal filled plastic that can achieved density up to 11.00 gm/cc
Why doesn't a plastic bottle sink in water?
the density of plastic bottle is less than that of water. As density of liquid is directly proportional to upthrust, the water provides more upthrust Also the weight of empty plastic bottle is less than upthrust.
Floating in water and density?
I've never done it before, so I can't tell you an exact technique to set the razor blade afloat. However, I am sure this has to do with the surface tension of the water. Its the same thing that lets some small insects walk across water. So I suspect if the razor blade is lowered slowly and is flat with respect to the water, the surface tension will be enough to keep it floating.
Are there any solids that have the same density as water at room temperature? If so, what are they?
If you’re after something with more-or-less neutral buoyancy, there are a few plastics that meet that requirement. One would be ABS (acrylonitrile butadiene styrene). It can have a specific gravity of 0.99 – 1.01. There are a few polystyrenes that are near 1.0. A few plastics will float (just barely).
Why does styrofoam have a similar density to water?
It doesn’t. Solid polystyrene plastic does.Lets’ do an experiment. Take a toy balloon, fill it with water with no air, and place it in a sink filled with water. The balloon sinks or has close to neutral bouyancy, as the density of the elastomer the balloon is close to that of water, and the combined density of the filled balloon is nearly the same.Fill a balloon with air, it floats of top of the water. The combined density of the balloon and the air inside of it is greater than air, but far less than water.Styrofoam is polystyrene plastic that has been “foamed”, or filled with many tiny bubbles of air. typical Styrofoam (that’s a trademarked name, by the way) is 2% polystyrene and 98% air by weight. It has a much lower density than water, and floats.The generic name of Styrofoam is closed cell Extruded Polystyrene Foam (XPF).
If a plastic ball is filled up with water, can it sink in other water?
There are many types of plastic, so there isn't one answer. If the ball is completely filled with water, then if the plastic has a greater density than water, it will sink, otherwise it will float. Unfortunately, there are many types of plastics, some with a density less than water, some with a density greater than water, so it varies. The link below gives some densities. Everything less than 1 g/ml will float.
Which is a denser medium, glass or water?
Speed of light in any medium is given by the ratio of the speed of light in vacuum to the refractive index of that medium.V=c/UV=speed of light in that mediumC=speed of light in vacuumU=refractive index of that mediumRefractive index of glass=1.54Refractive index of water =1.33So we can see speed of light in glass is less then the speed of light in waterSo by comparing the refractive index of two medium we can determine which one them acting as denser medium and which one of them acting as a rarer medium.In this case glass acting as a denser medium and water acting as a rarer medium.eg:Refractive index of one medium 1 > refractive index of medium 2So medium 1=denser mediumMedium 2= rarer medium
An object will float in water if its density is less than half that of water. It is true or false?
False. An object will float if it's density is any less than water.
Is plastic lighter than wood?
Most of the structure of wood is made from cellulose which has a density of about 1.5. Unlike solid plastics however the cellulose in wood is used to form the cell walls. In hardwoods the cells are called fibres and they are long narrow tubes. When wood is dry the tubes are filled with air which has a very low density (about .007) so wood has an average density between 1.5 and .007. With the densest woods the tubes have very thick walls and very narrow lumens so there is hardly any space for any air. These woods sink in water. Balsa wood on the other hand has very thin cell walls so it contains lots of air. Some plastics materials can be filled with tiny bubbles of air, expanded polystyrene for instance and is then less dense than balsa wood but because it has no fibrous structure is considerably weaker. Solid plastics have densities ranging from just below 1 up to about 1.5 maybe.