Cohesion.
Gravity for starters. Also, one must consider that water on glass has a coefficient of friction that is very low, therefore causing it to flow very freely to the lowest point. I have something to add to this. It is gravity, but its the viscosity level that makes water fill the bottom of the glass.
Water forms on the surface of the glass when ice melts due to condensation. As the ice melts, it releases water vapor which comes into contact with the cooler surface of the glass, causing it to condense and form water droplets.
Water in a graduated cylinder form a meniscus due to attraction between the water molecules and the glass and the water being repelled by the container. If it is repelled a convex meniscus will be formed and if attracted it will result of a concave meniscus.
A spoon can hold more water than the level of its rim due to surface tension and cohesion properties of water molecules. These properties allow the water to form a convex meniscus above the rim of the spoon, effectively increasing the volume of water the spoon can hold. Additionally, the shape of the spoon allows for better distribution of the water's weight, preventing overflow.
Surface tension will attract the water solution to the molecules of the container thus lifting it up on the edges. Mercury, being much more dense has no such attraction because it is a liquid metal.Answer:It is due to what is called cohesion and adhesion. The water molecules are attracted to each other through cohesion, which is the attraction between similar particles (by polarity). Adhesion is attraction between unlike molecules. When water is placed in a glass container, the forces of adhesion overcome the forces of cohesion, and the water climbs up the glass. Conversely, the attraction between mercury atoms (cohesion) is stronger than its attraction to the glass (adhesion). Therefore, the atoms pull together and away from the glass.
convex
Water can act as a concave or convex lens, depending on the shape of the water surface and its curvature. When the water surface is bulging outward, it acts as a convex lens, focusing light rays. On the other hand, when the water surface is curved inward, it acts as a concave lens, diverging light rays.
Surface tension. This phenomenon is caused by the cohesive forces between water molecules. The surface tension of water allows it to form a slightly raised "bulge" at the top of a glass when overfilled before spilling over.
Mercury has a low adhesive force to glass, it would rather bond to itself than another surface. This tends to create a spherical surface on open mercuric faces. Balanced by gravity the hemisphere flattens and creates the slight convex shape observed.
Gravity for starters. Also, one must consider that water on glass has a coefficient of friction that is very low, therefore causing it to flow very freely to the lowest point. I have something to add to this. It is gravity, but its the viscosity level that makes water fill the bottom of the glass.
Adhesion between water and the walls of the container causes the liquid to climb the walls, while cohesion between water molecules creates a curved surface at the top of the liquid. The combination of these forces results in the formation of a meniscus, which is concave for water in a glass container and convex for water in a narrow tube.
Meniscus. Essentially it is because water adheres to the glass.
The shape of the surface of a column of water actually depends on what the sides of the container are made of, but for a glass tube the surface is concave. This is because water likes to wet the glass. Some materials, such as teflon, water does not like to wet. On a teflon surface, water will form little beads and does not like to stick. A water column in a teflon tube would have a convex surface.This is because the wet glass has less surface energy than the dry glass. Since the universe always likes to reduce the total energy of a system, the water rises up the sides to make more wet surface and reduce the total energy. With a teflon surface, the dry surface has less energy and so the water is "repelled" from the surface.
Condensation on a glass surface occurs when warm, moist air comes into contact with the cooler surface of the glass. The air cools down upon contact with the glass, causing the water vapor in the air to condense into liquid water droplets on the surface of the glass.
Water forms on the surface of the glass when ice melts due to condensation. As the ice melts, it releases water vapor which comes into contact with the cooler surface of the glass, causing it to condense and form water droplets.
Water bubbles do act like convex lenses in that they can refract light and create a focused image. The curved surface of a water bubble causes light rays passing through it to converge, similar to how a convex lens works. However, the optical properties of a water bubble are not as precise as those of a manufactured lens.
Yes.Just pour it over a glass and it'd act like a convex lens.