![]() A fluid with low viscosity, on the other hand, flows smoothly because its molecular nature causes very little friction when moving. Because of its strong intermolecular tensions, it has a lot of internal friction, which prevents layers from moving past one another. When fluid has a high viscosity, it inhibits movement. It is caused by internal friction between the fluid layers as they slip past one another while fluid moves. Viscosity is a measure of a fluid’s thickness or resistance to items passing through it. Most fluids have some resistance to motion, which we call viscosity, which occurs when the fluid’s layers move relative to one another. Is it true that water has a high viscosity?.What is the best way to break viscosity?.What are the different kinds of viscosity?. ![]() What causes viscosity in the first place?.Viscosity Formula, Symbol, Meaning, Unit, Dimensions QNAs.NCERT Solutions Class 10 Social Science.NCERT Solutions For Statistics Class 11.NCERT Solutions Class 11 Chemistry Updated 2023-24.NCERT Solutions Class 12 Maths Updated 2023-24. ![]() NCERT Solutions Class 12 Chemistry Updated 2024.Moving the air in a particular direction. This is just from air being a fluid, meaning this drag does not come from a wind It is still enough to createĪ drag force on objects moving through it, more commonly known as air resistance. Have internal friction too, though it is much less. When we talk about the viscosity of fluids, we do not just mean liquids gases The open end of the cylinder, as it would flow toward the closed end due to This presents a problem as the idea is to lubricate the entire cylinder,īut a low-viscosity fluid would soon not sufficiently reduce friction near If, instead of honey, the fluid was water, it would start on the sides of theĬylinder just like the honey but would easily flow to the closed end of theĬylinder due to gravity, along the inside near the bottom. Inside of the piston and resist the pull of gravity more easily. Imagine a high-viscosity fluid like honey. The piston but will also flow just as easily in the other direction,īack toward the walls. Answers A or D are not it.Ī low-viscosity lubricant would be able to flow more toward the center of Not ideal, as the idea is to lower the friction between the piston and Upper face of the cylinder, only pooling at the bottom of the inside. The lubricant will flow toward the center of the piston more than inĪ low-viscosity lubricant would not stick at all, to either the lower or the.The lubricant will mainly stick only to the upper face of the.The closed end of the cylinder more than in the opposite direction. The lubricant will flow from the open end of the cylinder toward.The open end of the cylinder more than in the opposite direction. The lubricant will flow from the closed end of the cylinder toward.The lubricant will mainly stick only to the lower face.Water broken down into three different layers. Observe the diagram below showing the honey and When stirring a fluid, its internal friction can prevent portions of it from Graph C correctly shows a drag force proportion that starts as a lineĪnd increases faster to become a squared proportion at higher speed. However, we know that as speed increases,ĭrag force should be increasing with a faster squared relationship, Graph D shows a drag force that does change with speed, starting as a It changes, so it cannot be this one either. Graph B shows a drag force perfectly proportional to speed, but we know that The drag force is proportional to the square root of speed, so it cannot be The shape of the graph indicates that this is a situation where Graph A shows drag force increasing at a slower and slower rate as speed Proportional to the speed, but above this speed, the drag force isĪt low speeds, □ ∝ □ . The correct answer is thus D: Below a certain speed, the drag force is It cannot be A, B,īelow a certain speed, the drag force is smaller, being only proportional to The speed or the square of the speed at all times: it changes. The drag force is not a constant proportion. We know that, for fluids, □ ∝ □ at low speeds The drag force is proportional to the square of the speed.Below a certain speed, the drag force is proportional to the speed,īut above this speed, the drag force is proportional to the square of.Root of the speed, but above this speed, the drag force is proportional to Below a certain speed, the drag force is proportional to the square.The drag force is proportional to the speed.The drag force is proportional to the square root of the. ![]() The speed at which the object moves through the fluid? Which of the following most correctly describes how the drag forceĮxerted by a fluid on an object moving through the fluid varies with Example 1: Drag Force through Fluid Proportions
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