Explain the cause of a friction

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Explain the cause of a friction

Posted by Niyati Mangela 3 years, 11 months ago

CBSE > Class 08 > Science

3 answers

Diksha Laniya🐥 3 years, 11 months ago

Friction is a force that resists the relative motion between two objects or materials. The causes of this resistive force are molecular adhesion, surface roughness, and deformations. Adhesion is the molecular force resulting when two materials are brought into close contact with each other.

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Yogita Ingle 3 years, 11 months ago

Friction is a force that resists the relative motion between two objects or materials. The causes of the resistive force of friction are:

Molecular Adhesion
Surface Roughness
Plowing effect

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Gaurav Seth 3 years, 11 months ago

When we try to move one object over another object, the irregularities present on their surface get entangled or locked with one another. The interlocking of irregularities of the two surfaces opposes the motion of one object over the other and give rise to force of friction.

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.

More the roughness of a surface larger is the number of irregularities on its surface and has greater will be the friction does the force of friction.The force friction is greater if very rough surfaces are involved.

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