0
What is the least dense material that can not be made to float using water's surface tension?
Density is not the only property to consider when thinking of
the phenomena of flotation over water using water's surface
tension.
Pure gold has a density of about 19 g/cm3, (water's density
is about 1.0 g/cm3), and you can make small thin flakes of it
to float if you previously played with them with your fingers
to provide an oily film around them. This will reduce its
wet-ability and reduce its contact angle.
Experiment trying to make a metal clip float in water. Just
squeeze the clip with your fingers to put a thin oily film around
it. Then hold the clip with your index finger under it and sink
your hand carefully in the water letting the clip be the last
one to touch flatly the water surface.
If you succeed, then try it on soapy water, using a little bit of
liquid dish soap.
Can you make it float again ?
What else can I help you with?
Do weight and density play a big role in determining wether or not an object will break surface tension?
Yes, weight and density play a role in determining whether an object will break the surface tension of a liquid. Objects that are heavier or denser are more likely to break the surface tension, as they can exert a greater force on the liquid molecules. Lighter or less dense objects may not have sufficient force to break the surface tension of the liquid.
What does the term interfacial tension mean?
The term interfacial tension or surface tension means the contractive tendency of a liquid that lets it resist and external force. Interfacial tension could be observed from the floating of objects on the surface of water, even though they are more dense than water.
When light passes from less dense material to more dense material the light?
bends towards the normal.
Why do air bubbles in water rise to the surface?
Air bubbles rise to the surface of water because they are less dense than water. As a result, they experience a buoyant force that pushes them upwards towards the surface. Additionally, the surface tension of water helps to carry the bubbles to the top.
Which is more dense steel or water?
Er, Does Steel (by itself) Float when placed in water? (for purposes of this discussion, lets omit masses of steel less than that required to break the water's surface tension, and formulations/constructions of steel purposefully designed to not break the surface tension, both of which are probably possible) No, ergo steel is more dense in its "usual" formulations & construction.
Where would ocean waters be least dense?
At the surface of the ocean in the warmest area of the ocean.
Why a clip float in water?
Because the paperclip is not dense enough to break the surface tension of the water
Do weight and density play a big role in determining wether or not an object will break surface tension?
Yes, weight and density play a role in determining whether an object will break the surface tension of a liquid. Objects that are heavier or denser are more likely to break the surface tension, as they can exert a greater force on the liquid molecules. Lighter or less dense objects may not have sufficient force to break the surface tension of the liquid.
What phenomenon allows objects or liquids that are less dense to float in liquids that are more dense?
If an object or liquid is is less dense than the liquid in which it floats, that's the reason why it floats, because whatever is less dense floats. If you meant to ask why something MORE dense can float in something LESS dense, one answer is surface tension.
How concentration affect surface tension?
As the strength of intermolecular forces(IMFs) increases, vapor pressure decreases. This is because when IMFs are stronger it is harder for the compound to go to the gas phase, this means that the pressure the compound is exerting on the surrounding environment is lower.
Why do dense objects float in the dead sea?
it is salty and salty waters are dense
How can you test how much weight the surface tension of water can hold?
Small insects such can walk on water because their weight is not enough to penetrate the surface. A carefully placed small needle can be made to float on the surface of water even though it is several times as dense as water. If the surface is agitated to break up the surface tension, needle will quickly sink.
What does the term interfacial tension mean?
The term interfacial tension or surface tension means the contractive tendency of a liquid that lets it resist and external force. Interfacial tension could be observed from the floating of objects on the surface of water, even though they are more dense than water.
Why pepper separate to detergent?
Pepper separates from detergent due to differences in density and surface tension. When pepper is added to water mixed with detergent, the detergent reduces the surface tension of the water, allowing the pepper to spread out more easily. The pepper, being less dense, floats on the surface, while the detergent molecules disrupt the water's cohesive forces, preventing the pepper from clumping together. This separation illustrates the effects of surface tension and density in mixtures.
What is special characteristic of water?
cohesion, strong surface tension, unique crystalline shape when it freezes allows ice to float (less dense), high specific heat
Why are el nino waters less dense than those of the surrounding ocean?
El Nino waters are less dense because the waters are warmer and warm water is less dense than cool water. Also, it constantly rains over the ocean during the El Nino, and rain water is less dense than ocean water.
What is an aquatic microbe that ca grow only at the surface of the water?
An example of an aquatic microbe that grows at the surface of the water is the cyanobacteria, which can form floating mats or scums on the water's surface. These microbes can photosynthesize and often thrive in nutrient-rich or polluted waters where they form dense surface blooms.
