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What else can I help you with?
Does needle float on water?
Yes, a needle can float on water if it is carefully placed on the surface due to surface tension. However, if the needle is pushed down into the water, it will sink due to its density being greater than that of water.
A straight pin floats on water?
Normally no. But if you carefully set the pin on some still water, yes it can 'float' on the water due to what's called surface tension. This is also what causes a small amount of water on a smooth surface to 'bead'. It's also what keeps water beetles on top of the water in ponds.
What will happen to a needle place in water?
A needle placed in water will float due to surface tension. The surface tension of water allows the needle to be supported on the surface rather than sink.
What is the hypothesis for paperclip floats in water?
One hypothesis will have to do with the surface tension of water.
How does an arrowhead floats on water?
Water has a property called "surface tension". This causes the surface molecules to be attracted to each other so as to form a 'skin' on the surface. This will allow an object that is heavier than water to appear to "float" on the surface, but NOT due to bouyancy alone. If you were to put a surfactant (soap) in the water it would eliminate the Surface Tension, and the floating arrowhead would then sink.
Why can water support objects that have greater densities than water?
Surface tension.
Does water have greater surface tension than honey?
No, honey has greater surface tension than water. Honey is a viscous liquid with a higher concentration of sugar molecules, which creates stronger intermolecular forces and increases surface tension compared to water.
Why does tap water have greater surface tension than soapy water?
Because honey is stikier
Why does the pin rest on the surface of the water when it denser than the water?
The pin rests on the surface of the water due to surface tension. Surface tension creates a "skin" on the water's surface that can support objects with low surface area, like a pin. The pin is able to float because the force from surface tension is greater than the force pulling it down due to gravity.
Does gasoline have a low surface tension?
yes it is lower than the surface tension of water
How does surface tension of water compare with the surface tension of most other liquid?
The surface tension of water is higher than that of most other liquids. Water has a surface tension of 7.29 * 10-2 J/m2 at 20oC.
Does needle float on water?
Yes, a needle can float on water if it is carefully placed on the surface due to surface tension. However, if the needle is pushed down into the water, it will sink due to its density being greater than that of water.
Why can a sewing needle can float on the surface water in a glass?
Yes if the surface tension of the water is not broken. If you are careful you can place a needle on the surface of the water in a glass. Also if you reduce the surface tension with detergent (just a very little is enough) the needle will sink because it's density is greater than that of the water. NO (if the surface tension of the water is broken, a needle cannot float on the surface of water. This is because the needle has higher density than water (density is mass divided by volume).
What makes some liquids have a greater surface tension than others?
The surface tension is primarily due to the arrangement of electrons of the molecules that comprise the liquid.
How does the surface tension of water compare with the tensions of most other liquids?
The surface tension of water is higher than that of most other liquids. Water has a surface tension of 7.29 * 10-2 J/m2 at 20oC.
What has to have more density for an object to float on water the object or water?
Normally the water - to float and object has to displace a volume of water equal to its mass. If its density is greater than that of water, the maximum mass of water it can displace is its own volume which, as the water is less dense that it, will have less mass than the object and it will sink. However, for small light objects the surface tension of water comes into play - it is possible to float a steel sewing needle (with a density greater than water) on water by gently dropping a clean needle on its side onto the water surface so that it does not break the surface tension. With a needle floating, adding a few drops of washing up liquid to the surface reduces the surface tension and the needle will then sink.
How are small insects able to walk on the surface of water?
The oil on their feet is strong enough to repel the water and there weight is spread out enough that when their feet touch the water, the oil and the water repel each other like when you pour oil on water the oil floats on the top... same principle
