Allen pours water into a graduated cylinder. He notices that the surface of the water is curved, as shown below.Which of the following identifies this phenomenon and explains how it is formed?
Question
Allen pours water into a graduated cylinder. He notices that the surface of the water is curved, as shown below.Which of the following identifies this phenomenon and explains how it is formed?
Solution
This phenomenon is known as the meniscus. It is formed due to the property of cohesion in water. Cohesion is the attraction between like molecules, in this case, water molecules. This causes the water to 'stick' to each other and to the sides of the cylinder, forming a curve. The water is more attracted to the glass of the cylinder than to itself, causing it to climb up the sides and dip in the middle. This is why the surface of the water is curved in a graduated cylinder.
Similar Questions
The surface of water inside the graduated cylinder shapes curve because of the cohesive force between the water molecules and the side of the cylinder wall.Question 3Select one:TrueFalse
Which of the following identifies this phenomenon and explains how it is formed?Choose 1 answer:Choose 1 answer:(Choice A) The curved surface is a concave meniscus which has formed because of capillary action.AThe curved surface is a concave meniscus which has formed because of capillary action.(Choice B) The curved surface is a convex meniscus which has formed because of capillary action.BThe curved surface is a convex meniscus which has formed because of capillary action.(Choice C) The curved surface is a convex meniscus which has formed because of surface tension.CThe curved surface is a convex meniscus which has formed because of surface tension.(Choice D) The curved surface is a concave meniscus which has formed because of surface tension.DThe curved surface is a concave meniscus which has formed because of surface tension.
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