I cant remember but I hope this answers, you have to use brakes in a car to stop the car therefore friction is increased (or it stops).
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friction is a force which opposes the direction of the movement of a certain body. reducing the friction between moving parts will lead to an increase of acceleration or speed of that particularly body.
A lubricantis a substance introduced to reduce friction between moving surfaces. It may also have the function of transporting foreign particles. The property of reducing friction is known as Lubricity. (Slipperiness) This causes less friction.
The reduction of friction in the moving parts of machinery is the primary usage of oil.
Friction can be increased by reducing the speed of the moving object. Friction can also be increased by increasing the weight of the moving object.
a "lubricant" is a friction-reducing substance: a substance, typically oil or grease, applied to a surface to reduce friction between moving parts
Friction creates heat. Heat could melt machine parts if it becomes too high. That's why many machines use lubricants while they're drilling or shaping metal.
Grease and oil is used in machinery to prevent the moving parts from wearing out too soon due to friction.
Lubricants are solely used for reducing friction between two moving parts of a machine.
1) using a lubricant film between moving parts. 2) using low friction materials, such as Teflon.3) reducing surface roughness.
Lubricants make the machines movement easier. they reduce the friction made by two moving parts so that they do not wear out quickly
Because grease is slippery, it reduces friction between solid moving objects. Machinery would not be practical without grease and other lubricants.