2007-02-07 09:02:41 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Physics
The coarseness or grain of the surface will generally increase the friction, whereas smooth surfaces will have less friction.
The surface could also have a lubricant (oil, water, powdered graphite, etc) to reduce the friction.
2007-02-07 09:07:30 · answer #1 · answered by computerguy103 6 · 0⤊ 0⤋
The type of surface affects the friction because of many things.
The smoother a surface is, the less friction. Such as a missile launched in the air, the smoother the surface, the faster the air resistance rushes past it.
Paper is smooth, but it's spread apart over an area (8in x 11in, probably). This causes it to catch onto air resistance and not flow as fast.
If a surface was rugged, it would catch onto a different surface easily, such as velcro, cotton cloth, etc.
2007-02-07 17:09:12 · answer #2 · answered by T.VO 3 · 0⤊ 0⤋
Clearly, the rougher the surface, the more friction. Also, depending on the material, the nature of the broken bonds differ, and that can change the reactivity of the surface, and hence, the friction. Liquids on the surface with low viscosity, such as oil, reduce friction.
2007-02-07 17:06:35 · answer #3 · answered by bozo 4 · 0⤊ 0⤋
The type of surface affects friction because if you have plastic and metal you know plastic has more static. So obviosly it matters if the type of surface is really static the better the friction.
2007-02-07 17:07:33 · answer #4 · answered by Taury_girl_95 1 · 0⤊ 1⤋
A rougher surface will give higher friction because all the little bumps effectively 'hook' onto the object passing over it.
2007-02-07 17:07:31 · answer #5 · answered by jesus_zakini 2 · 0⤊ 0⤋
WELL I LEARNED THE HARD WAY... I USED SAND PAPER
IN THE JOHN AND BELIEVE ME THE TYPE OF SURFACE
GREATLY AFFECTS THE FRICTION! SEEMS THE ROUGHER IT
IS THE MORE FRICTION
2007-02-07 17:08:08 · answer #6 · answered by DR. BICKEL 3 · 0⤊ 0⤋