How does friction force arise?

Frictional Force refers to the force generated by two surfaces that contacts and slide against each other. Friction arises from shearing these “fused” junctions and from the action of the irregularities of the harder surface tilling across the softer surface.

What is the cause of friction between any two surfaces Class 8?

Friction is caused by the interlocking of irregularities in the surface of two objects which are in contact with each other. To move one object over the other ,we have to apply a force to overcome interlocking of the irregularities in their surfaces.

What is the origin of forces between two surfaces in contact?

Friction is a force which comes into existence when two bodies in contact have relative motion or tending to have relative with respect to each other and oppose the motion. When the applied force is zero, the force of friction also equal to zero.

What is the origin of friction between two surface when they slide over each other?

Friction originates in nanoscale contacts, as the result of new surface formation. The theory explains the generation of frictional force and frictional heating in dry contact.

What are the factors that affect friction between two solid surfaces?

The frictional force between two bodies depends mainly on three factors: (I) the adhesion between body surfaces (ii) roughness of the surface (iii) deformation of bodies.

Does static friction between two surfaces depend on the macroscopic area of the surfaces in contact with each other?

It is commonly believed that the maximum static friction force is proportional to the loading force and does not depend on the apparent contact area. The ratio of the maximum static friction force to the loading force is called the static friction coefficient µM, which is considered to be a constant.

What is friction explain the cause of sliding friction?

Sliding friction is a result of minute, microscopic irregularities on the surface of the objects in motion. Rolling friction is caused by the deformation and recovery of the surfaces in contact. Factors influencing sliding friction are the texture of surfaces, weight of the bodies in motion etc.

When the two surfaces are pressed harder friction increases explain why?

Answer: Friction between two surfaces increases when they are pressed harder because there are irregularities between two surfaces which tries to lock the two surfaces. When two surfaces are rubbed harder then irregularities get more time to increase their contact which in turn lead to increased friction.

Which of the following actions will increase friction between two surfaces?

Explanation: Becoz , if the area of contact increased, then the pressure will increase by causing to increase the frictional force…