Some examples of relatively high friction surfaces are: sand paper, grass, and asphalt. In general, the rougher the surface, the more friction it has.
Sandpaper and asphalt both have relatively high coefficients of friction.
Some examples of relatively high friction surfaces are: sand paper, grass, and asphalt. In general, the rougher the surface, the more friction it has.
There are several examples of surfaces that have little friction between them. They are water against a boat, crude oil in water, ball bearings, roller bearings, and graphite.
Example of high friction is a really rough surface like sandpaper.
If both of the surfaces on which friction is to be created are very rough, the friction will be more. The more rough the surfaces more friction we have.
A high coefficient of friction may be caused by a rough surface. It may also be the result of surfaces sticking together, as in the case of rubber which tends to stick to certain surfaces, at least when it is dry. Lubrication - such as a thin layer of oil - tends to reduce the coefficient of friction.
The rougher the surfaces the greater the friction.
-- sandpaper against wood -- rubber mat against the floor of the shower stall I chose them because they were the first examples that popped into my addled mind.
High friction and low friction.
Ball bearings, oil, lubricant. Pretty much anything that reduces the friction between two interacting surfaces.
Soap surfaces have very little friction.
Friction does depend on the types of surfaces involved and how hard the surfaces push together. Friction would be very minimal if the surfaces were smooth and not pushing together too hard.