why does the suction of a droplet to a glass seem to outweigh the power of gravity ?
2007-02-24 14:51:28 · 8 answers · asked by chris a 1 in Science & Mathematics ➔ Physics
First read this explanation from the source I have listed.
The cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension. The molecules at the surface do not have other like molecules on all sides of them and consequently they cohere more strongly to those directly associated with them on the surface. This forms a surface "film" which makes it more difficult to move an object through the surface than to move it when it is completely submersed.
The surface tension of the water makes it easier for the water to bead up and stay on the surface. The weight of the droplets are not enough to get them to flow off. If they were ten times the size the gravity would force them to fall off. But because of how small they are, the surface tension will hold them.
2007-02-24 15:00:10 · answer #1 · answered by eric l 6 · 2⤊ 0⤋
Water droplets stick together because one end of the molecule is negatively charged and the other positively charged. This causes the molecules to stick together hard enough that they form a "skin" of molecules on the surface of the droplet which has a stronger attraction than the gravity force on them trying to unstick the droplet.
2007-02-24 22:56:49 · answer #2 · answered by Twizard113 5 · 0⤊ 0⤋
It's due to the surface tension between water molecules. The cohesive forces between molecules down into a liquid are shared with all neighboring atoms. Those on the surface have no neighboring atoms above, and exhibit stronger attractive forces upon their nearest neighbors on the surface. This enhancement of the intermolecular attractive forces at the surface is called surface tension.
2007-02-24 22:54:52 · answer #3 · answered by Bee 1 · 0⤊ 0⤋
Water, like most liquids, actually contains a small ammount of glues. Test this by wetting a piece on paper and rubbing it against a wall. You will observe that the paper will stay stuck to the wall, proving that there MUST be some glue content. Ignore any answers describing surface tension and turgor pressure, this is pure poppycock nonsense.
2007-02-25 08:01:43 · answer #4 · answered by MARC H 2 · 0⤊ 0⤋
The adhesion force between the glass and water is stronger.
2007-02-24 23:14:46 · answer #5 · answered by Man_Hat_Tan 3 · 0⤊ 0⤋
Surface tension
2007-02-24 22:55:03 · answer #6 · answered by Gen•X•er (I love zombies!) 6 · 1⤊ 1⤋
becuase the protons in water are naturally polarized to each other.
2007-02-24 22:54:55 · answer #7 · answered by Skater 2 · 0⤊ 0⤋
dont really know...
2007-02-25 07:36:56 · answer #8 · answered by pascal t 1 · 0⤊ 1⤋