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Polishing Surfaces in Contact to Change Friction

Materials use...

Question

Materials used to reduce friction are called ______(lubricants, beverages).

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Solution

Lubricants basically used to reduce friction. lubricant reduces irregularities between two surfaces so friction reduces.

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Similar questions

Q. Which of the following should be used to reduce friction on a carrom board?
(a) a lubricating oil
(b) a dry lubricant
(c) a layer of grease
(d) a ball bearing

Q. Can we reduce friction to zero by polishing surfaces or using large amount of lubricants ?

Q. Assertion :In order to reduce sliding friction, lubricants are used. Reason: Lubrication changes the conditions of rubbing, replacing the sliding friction by rolling friction, there by reducing the force of friction.

Q. Lubricants are used to increase friction in door hinges.

How does lubrication reduce friction.

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Polishing Surfaces in Contact to Change Friction

Standard VIII Physics

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