• Unit error. Meniscus Error. Since water molecules are attracted to the sides of the measuring cylinder and this force. decreases with distance from the sides, water has a downward curving surface or. MENISCUS.
what is a meniscus and how do you read it?
Likewise, people ask, what is a meniscus and how do you read it?Concave menisci are read from the bottom of the curve at eye level. A meniscus is a curve formed on the upper surface of a liquid inside a container. This curve is formed by the surface tension between the liquid and the container holding the liquid. A common liquid that forms a convex meniscus is liquid mercury.
what causes the meniscus?
A concave meniscus occurs when the particles of the liquid are more strongly attracted to the container (adhesion) than to each other (cohesion), causing the liquid to climb the walls of the container. This occurs between water and glass.
what is a meniscus and why is it important?
The meniscus plays two important roles within the knee. A meniscus is a critical shock absorber within the knee. The meniscus also provides stability within the knee.
What is meniscus level?
The level depends on the shape of the meniscus, or crescent D. Updated October 02, 2019. The meniscus is the curve seen at the top of a liquid in response to its container. The meniscus can be either concave or convex, depending on the surface tension of the liquid and its adhesion to the wall of the container.
What is the opposite of meniscus?
A meniscus may be either concave or convex. Some liquids, like mercury, have a convex meniscus because the opposite is true – the molecules of the liquid are more strongly attracted to each other than the walls of the container. You may also read,
What is the purpose of a meniscus?
Function. The menisci act to disperse the weight of the body and reduce friction during movement. Since the condyles of the femur and tibia meet at one point (which changes during flexion and extension), the menisci spread the load of the body’s weight. Check the answer of
Why does water have a meniscus?
Why a meniscus occurs Adhesion is responsible for a meniscus and this has to do in part with water’s fairly high surface tension. And since water molecules like to stick together, when the molecules touching the glass cling to it, other water molecules cling to the molecules touching the glass, forming the meniscus.
How should a meniscus be read in a graduated cylinder?
To correctly read a graduated cylinder, the surface at the center of the meniscus must be read, not the top of the ring of liquid clinging to the wall of the graduated cylinder. For most liquids, this “center” will be the lowest point of the meniscus. Read:
What is lower meniscus and upper meniscus?
All pipets are calibrated to the lower meniscus, so use it as long as you can see it. If the solution is very dark or opaque to the extent that the lower meniscus is not visible, only then use the upper meniscus. In the case of liquids like mercury that form a convex meniscus, use the top of the convex meniscus.
Why are burette readings taken from the top of the meniscus?
The curved surface at the top of the liquid level is called a meniscus. You read the liquid level using the bottom of the meniscus. The meniscus is created by surface tension of the liquid and the extent thatthe liquid “wets” the wall. Therefore the meniscus, as you see it, is dependent on the background.
What is a meniscus graduated cylinder?
A: A meniscus is the curved surface at the top of a column of liquid. In a science class, this liquid is usually water or some sort of aqueous solution, and the column is usually a graduated cylinder or a pipet.
Does the ocean have a meniscus?
The meniscus (plural: menisci, from the Greek for “crescent”) is the curve in the upper surface of a liquid close to the surface of the container or another object, caused by surface tension. I’m playing a little fast and loose with the definition, but the surface of the ocean curves downward very slightly.
Which meniscus is more important?
The lateral meniscus has been shown to be more mobile than the medial meniscus. In each meniscus, the anterior horn has greater mobility than the posterior horn. The reduced mobility of the posterior medial meniscus may result in greater stresses in this area, leading to increased vulnerability to injury.
Why does water pour down the side of the glass?
3 Answers. This is due to surface tension. Water wants to stick to hard surfaces as this is a lower energy arrangement. Component of gravity perpendicular to glass pulls water away from glass wall, and surface tension pulls water to glass wall.
