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How is friction between the moving parts of a car engine reduced?
Wiki User
∙ 14y ago
Friction between the parts of an engine is reduced by applying oil between its parts. mobiloil is particularly used for this purpose.
Wiki User
∙ 14y ago
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What is the source of friction?
Friction is a result of the interactions between surfaces that are in contact, more precisely, it arises from microscopic interactions between jagged natures of surfaces. Friction is present even when an item is not moving.
What is friction between moving parts of an engine?
Friction is cut down in a car engine for two very important reasons. First, cutting down friction increases horsepower. It takes horsepower to overcome friction; so anything that can be done to cut down friction will increase the horsepower. Second, friction causes heat to be produced. Too much heat is bad, because if the engine gets too hot, then metal is softened and weakened, leading to failure of engine parts. The engine has a cooling system to remove unwanted heat, but too much friction would require a larger and more efficient cooling system to remove the excess heat, which would add expense and weight to the car. Motor oil is used to cut down the friction in the car engine. Also, very close tolerances in production of engine parts helps to cut down friction.
Describe three different ways to decrease the force of friction between two surfaces that are moving past each other?
Three ways to decrease the force of friction are- 1.)Polishing 2.)Lubrication 3.)Ball Bearings
What is the difference between Static and Kinetic Friction?
Between any two body surfaces in contact there acts an frictional force. A friction can operate between a given pair of solids, between a solid and fluid or between a pair of fluids. There are two types of frictional forces : kinetic and static friction. When two bodies in contact move with respect to each other , rubbing the surfaces in contact the friction between them is called kinetic friction. The directions of frictional forces are such that it opposes the relative motion. Friction forces can also act between two bodies which are in contact but not moving or sliding with respect to each other. The friction in such case is static friction.
What causes static build up on moving vehicles?
The static build up on moving vehicles is caused by the friction between the moving vehicle and air. This works best on dry days.
Name the force that exists between the moving parts of a machine and how can this be reduced?
Friction. It can be reduced by lubricating substances such as oil.
What is the friction between moving particles called?
The friction between moving particles is called friction.
How oil help a moving object?
Oil reduces the effects of friction between the surfaces that are in contact with each other. If you have oil on the road it is not helpful as the moving car will slide around because the friction between the tires and road is reduced.
The friction between objects that are moving is?
Air friction.
What is the friction that exits between a surface sliding on another surface is called?
If the two surfaces are moving relative to each other, then the friction between them is Kinetic Friction. Prior to the surfaces moving there was Static Friction between them.
What is static friction and kinetic friction?
Static friction is the friction between two objects that are not moving relative to each other (eg: a desk on the floor not moving), kinetic friction is the friction between two objects that are moving relative to each other (eg: a desk sliding on the floor)
Does friction reduce or increase when a car is moving?
Friction is de opposition of motion. if a car is in motion, the friction is said to be reduced because it oppose de movement of the car.
Where in an engine does friction occur?
The pistons, the cam(s), the lifters, every moving part will experience friction.
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 type of friction between 2 objects that prevent the object from moving is?
Static Friction
Why do you think Oil is pumped over moving engine parts while the engine is running?
To reduce friction by providing lubrication to the moving parts.
How air friction affect momentum?
AIr friction will try to slow down any item moving through air, and as the speed is reduced so is the momentum.
