Question

What is Friction?
No cheating!!!

Answer 1

Explanation:

Friction is a force between two surfaces that are sliding, or trying to slide, across each other. Friction always slows a moving object down. The amount of friction depends on the materials from which the two surfaces are made. The rougher the surface, the more friction is produced.

Answer 2

• Friction is the force that prevents solid surfaces, fluid layers, and material components sliding against one another from moving in the same direction.

Friction comes in several forms:

• A force opposing the relative lateral motion of two solid surfaces in contact is known as dry friction.
• Static friction (stiction) between non-moving surfaces and kinetic friction (friction between moving surfaces) are the two types of dry friction.
• Dry friction is caused by the interaction of surface characteristics, known as asperities, with the exception of atomic or molecular friction.
• The friction between layers of a viscous fluid moving relative to one another is referred to as fluid friction.
• When a lubricating fluid separates two solid surfaces, it is referred to as lubricated friction.
• Drag is a force that resists the movement of a fluid across the surface of a body. Skin friction is one of the components of drag.