Write the characteristics of the force of friction.

1.	Write the characteristics of the force of friction.
Answer» Characteristics of force of friction are : 1. Friction opposes the direction of motion. 2. It depends on the nature of the surface that are in contact. Rough surfaces offer greater degree of friction as compared to smooth surfaces. More the roughness of a surface, greater is the friction. 3. Friction depends upon the weight of the object – greater is the weight of the object, greater is frictional force it faces. 4. Friction is independent of area of surface in contact, when the weight remains unchanged.

Answer»

Characteristics of force of friction are :

1. Friction opposes the direction of motion.

2. It depends on the nature of the surface that are in contact. Rough surfaces offer greater degree of friction as compared to smooth surfaces. More the roughness of a surface, greater is the friction.

3. Friction depends upon the weight of the object – greater is the weight of the object, greater is frictional force it faces.

4. Friction is independent of area of surface in contact, when the weight remains unchanged.

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