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What are two examples of two surfaces that have a high coefficient of friction?
Wiki User
∙ 7y ago
Sandpaper and asphalt both have relatively high coefficients of friction.
Christop Hodkiewicz
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What is physical difference between surfaces with high and low coefficients of friction?
A high coefficient of friction may be caused by a rough surface. It may also be the result of surfaces sticking together, as in the case of rubber which tends to stick to certain surfaces, at least when it is dry. Lubrication - such as a thin layer of oil - tends to reduce the coefficient of friction.
Give an example of two surfaces with a high coefficient of friction Describe why you chose these two surfaces?
-- sandpaper against wood -- rubber mat against the floor of the shower stall I chose them because they were the first examples that popped into my addled mind.
What are examples of low friction materials?
Some examples of relatively high friction surfaces are: sand paper, grass, and asphalt. In general, the rougher the surface, the more friction it has.
Which two surfaces would have the highest coefficient of friction?
rubber on dry concreat
What can be done to reduce the effect of friction?
Friction on a moving body is dependent on two basic factors and it can be represented as follows Friction force = (Coefficient of friction between the moving surfaces)*( Normal Force between the surfaces) Reducing any or both of the two factors reduce friction. Coefficient of friction can be reduced by: 1. Making the surfaces smoother.(effective for moving bodies in gas,liquid, or on solid/semisolid surfaces) 2. Applying 'Lubricant'. (effective for bodies moving on solid/semisolid surfaces) The normal force can be reduced for bodies in gas and liquids by reducing the press of the medium. (Hence vacuum and high altitude offer less friction than sea level for space crafts). Reduction of the normal force between solid bodies is not practical for machines since this will entirely alter their usefulness. But of course friction couplings, brakes etc use variation of normal force as main criteria for their operation.
What are examples of high friction surfaces?
Some examples of relatively high friction surfaces are: sand paper, grass, and asphalt. In general, the rougher the surface, the more friction it has.
What is physical difference between surfaces with high and low coefficients of friction?
A high coefficient of friction may be caused by a rough surface. It may also be the result of surfaces sticking together, as in the case of rubber which tends to stick to certain surfaces, at least when it is dry. Lubrication - such as a thin layer of oil - tends to reduce the coefficient of friction.
Give an example of two surfaces with a high coefficient of friction Describe why you chose these two surfaces?
-- sandpaper against wood -- rubber mat against the floor of the shower stall I chose them because they were the first examples that popped into my addled mind.
Do rubber tyres show more friction or less friction?
Rubber will have a high coefficient of friction on most surfaces, but we cannot know whether there is more or less friction unless we have something to compare it to.
What are examples of low friction materials?
Some examples of relatively high friction surfaces are: sand paper, grass, and asphalt. In general, the rougher the surface, the more friction it has.
Which two surfaces would have the highest coefficient of friction?
rubber on dry concreat
What can be done to reduce the effect of friction?
Friction on a moving body is dependent on two basic factors and it can be represented as follows Friction force = (Coefficient of friction between the moving surfaces)*( Normal Force between the surfaces) Reducing any or both of the two factors reduce friction. Coefficient of friction can be reduced by: 1. Making the surfaces smoother.(effective for moving bodies in gas,liquid, or on solid/semisolid surfaces) 2. Applying 'Lubricant'. (effective for bodies moving on solid/semisolid surfaces) The normal force can be reduced for bodies in gas and liquids by reducing the press of the medium. (Hence vacuum and high altitude offer less friction than sea level for space crafts). Reduction of the normal force between solid bodies is not practical for machines since this will entirely alter their usefulness. But of course friction couplings, brakes etc use variation of normal force as main criteria for their operation.
Examples of high friction?
Example of high friction is a really rough surface like sandpaper.
Riction between two flat surfaces can be divided into two categories What are the two most common kinds of friction?
High friction and low friction.
What are the factors which affect the coefficient of static friction?
Dry surfacesFor low surface pressures the friction is directly proportional to the pressure between the surfaces. As the pressure rises the friction factor rises slightly. At very high pressure the friction factor then quickly increases to seizingFor low surface pressures the coefficient of friction is independent of surface area.At low velocities the friction is independent of the relative surface velocity. At higher velocities the coefficent of friction decreases.Well lubricated surfacesThe friction resistance is almost independent of the specific pressure between the surfaces.At low pressures the friction varies directly as the relative surface speedAt high pressures the friction is high at low velocities falling as the velocity increases to a minimum at about 0,6m/s. The friction then rises in proportion the velocity 2.The friction is not so dependent of the surface materialsThe friction is related to the temperature which affects the viscosity of the lubricant
How are fricition and force related?
Friction is a force and is the result of any force acting on a object. It is usually associated with two sliding objects or an object sliding across a plane. When a force is exerted on an object an opposing force is created by friction. The opposing force is equal to the exerted force until the exerted force exceeds the limiting friction. The limiting friction is determined by the coefficient of friction between the two surfaces and the "weight" of the object. To put it another way, imagine pushing a sheet of sandpaper across a rubber mat, which would have a high coefficient of friction. The weight of the sandpaper is minimal so the limiting friction is rather small. Now put a 5kg weight on the sandpaper and it becomes much more difficult to get the sandpaper to slide. Max friction = μ.N μ = coefficient of friction N = Normal force("weight")
What surface has the least amount of friction?
The surfaces used as the measure of lowest friction are generally wet ice on wet ice. Some materials, such as superfluid Helium III have no measurable friction.
