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What are types of friction?

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Quick Answer

There are four general types of friction: static, kinetic, rolling and fluid. Friction is defined as the force that resists the motion of two objects sliding against each other.

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Static friction occurs when an object is forcefully moved along a surface and no movement takes place. The direction of the force is in the direction opposite of the motion. Kinetic friction takes place when an object just starts to move across another surface. Rolling friction is defined as the force that slows down the movement of a rolling object. Fluid friction is the restrictive force that slows down the movement of an object in liquid.

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    What are some friction experiments?

    A:

    UNSW describes an experiment meant to work out the coefficient of static and kinetic friction. The experiment is set up on a table top surface that’s made of vinyl. Two iron disc, each a mass of 1 kg, are placed such that the lowest seats on a sample of artificial turf. To measure the horizontal force needed to overcome friction, a spring balance attached to the masses is pulled.

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  • Q:

    How do you increase friction?

    A:

    The way to increase friction is to make the surfaces of two objects more difficult to slide against each other. This can be done by making the surface rougher or applying more pressure to one of the surfaces. For a solid and a liquid, friction can be increased by making the liquid thicker.

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    What is the coefficient of friction of rubber?

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  • Q:

    What are some ways to increase friction?

    A:

    The main source of attraction between two metals, or adhesion, is what causes friction, and any increase of friction requires an increase in adhesion. Friction itself is the force of resistance against two objects as one object slides or rolls over another. This force increases the amount of energy required to move an object a set distance.

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