Question

Tell all about friction​

Answer 1

Answer:

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• FRICTION :-

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Friction is a force that opposes the relative motion between two Pushing force surfaces of objects in contact. The force of friction always acts in a direction opposite to that of the applied force.

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• CAUSE OF FRICTION :-

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Friction is caused by the interlocking of irregularitices in the surfaces of two objects which are in contact with each other. In order to move one object over the other, we have to apply force to overcome interlocking.

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• Factors Affecting Friction:-

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The friction between two surfaces depends on two factors:

1. The nature of the two surfaces (roughness of the two surfaces):

→ More the roughness of a surface, larger is the number of iregularities on its surface & hence greater will be the friction.

2. The force with which two surfaces are pressed together:

→ Pressing together two surfaces of objects with a greater force will increase the interlocking in the two surfaces & hence increase the friction.