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Static friction, which is the friction that needs to be overcome to get an object moving ( different values on different surfaces ), and kinetic friction, which is the friction imparted to the object as it mover along ( different values for different surfaces ).
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoThere are two types of friction: static friction and kinetic friction.
Static friction is the type of friction that keeps an object from moving, even when a force is acting upon it. For example, if you try to push a 1 billion kg block, you won't move it at all because of static friction. Or take a block on a slightly inclined table. Static friction allows the block to stay in place on a slightly inclined table.
Kinetic friction is the type of friction that takes place while the object is moving such as when you are pushing the vacuum around on a thick carpet.
It is important to note that the force of friction, even for the same object, is usually different for both static and kinetic friction.
Wiki User
∙ 10y agoIt's more complicated than "two causes."
Generally speaking rough surfaces have more friction then smooth. Think of sandpaper (rough) versus glass (smooth).
Generally speaking the more force holding the two surfaces together the more friction. Think of dragging a 5kg bicycle along the road behind you on a rope, versus an upside down 1500kg car on the same road...
But smooth surfaces can have high friction if they are soft.
Rubber is smooth but soft, in car tyres it gives better friction than a hard metal wheel would.
Some VERY VERY smooth and flat surfaces can have high friction even if they are hard. Polish metal/steel well enough, and get it flat enough, and clean enough, and it will join onto an identically flat/polished/clean bit if steel and become one, fusing the two together in a few minutes. The amount of work required to achieve this result means it is not worth the effort.
This ignores the application of lubricants. Racing cars can go round a track at high speeds on smooth rubber tyres, but add a bit of water, and they all slide off & crash.
Wiki User
∙ 13y agothe two types of friction are static and grate.
Wiki User
∙ 14y agokinetic and static
Wiki User
∙ 11y agoStatic and kinetic
Wiki User
∙ 12y agostatic friction and kinetic friction
Wiki User
∙ 12y agostatic
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What are the main causes of friction?
the main causes of friction are molecular adhesion,surface roughness,and the plowing effect.
What are two main types of friction?
The two main types of friction are kinetic and static.
What causes sliding friction?
Sliding friction is caused by the microscopic roughness of two suraces.
What causes sliding?
Sliding friction is caused by the microscopic roughness of two suraces.
What causes friction between two seemingly smooth surfaces?
Tiny collisions on the surfaces, called microwelds, cause friction.
What are the main causes of friction?
the main causes of friction are molecular adhesion,surface roughness,and the plowing effect.
What are the two types of main friction?
The two main types of friction are kinetic and static.
What are two main types of friction?
The two main types of friction are kinetic and static.
What causes sliding friction?
Sliding friction is caused by the microscopic roughness of two suraces.
How do you write a sentence with the word friction in it?
When you rub two things together, it causes friction.
What causes sliding?
Sliding friction is caused by the microscopic roughness of two suraces.
What are the causes of sliding friction?
For example the cause of sliding friction of two materials is when the stress between the Materials is not equal to zero
What is the main force in nature that causes water to flow?
Is it momentum friction electricity or gravity
How are friction notuseful?
Friction is not useful when ever we do not want it. Examples would be when two materials are rubbing against one another. The friction of ropes in pulleys eventually causes wear on both; friction of shoes or straps against the body causes blisters; friction airplanes travelling through the air - friction causes the plane to get hot; the moving parts of an engine get hot from friction...
What causes the sole of your foot to burn?
Burning sensation on the sole of the foot can be caused by various factors such as nerve damage (neuropathy), muscle fatigue, inflammation, or poor circulation. It can also be a result of wearing ill-fitting shoes, standing for long periods of time, or certain medical conditions like diabetes. If the burning sensation persists or worsens, it is important to consult a healthcare professional for proper evaluation and treatment.
What causes friction between two seemingly smooth surfaces?
Tiny collisions on the surfaces, called microwelds, cause friction.
What are the main causes of skin break down in the elderly?
The main causes of skin breakdown in the elderly are the following; friction,urine irritates the skin because of ammonia, immobility, malnourish and etc.
