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प्रश्न
Answer the following in detail.
Write the characteristics of the force of friction?
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उत्तर
Characteristics of the force of friction are :
- Friction opposes the direction of motion.
- It depends on the nature of the surface that is in contact. Rough surfaces offer a greater degree of friction as compared to smooth surfaces. More the roughness of a surface, the greater is the friction.
- Friction depends upon the weight of the object – greater is the weight of the object, greater is frictional force it faces.
- Friction is independent of the area of the surface in contact when the weight remains unchanged.
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संबंधित प्रश्न
Friction depends on the ______ of surfaces.
Answer the following.
What do you understand by a force?
Fill in the blank.
The force of friction acting between two bodies in contact while at rest is known as ................ friction.
Tick the most appropriate answer.
Force of friction comes into play when a/an
Tick the most appropriate answer.
Friction is offered by
Tick the most appropriate answer.
If you pour some oil onto a floor, the friction would
Fill in the blank.
Rolling friction is ........... than sliding friction.
Fill in the blank.
Friction depends upon the ............... of an object.
State if the following statement is true or false. Correct the statement if it is false.
Friction is offered by all the three states of matter.
Assertion: There is a danger of a vehicle skidding on a wet road.
Reason: The tires of the vehicle lose their grip on the road due to an increase in friction due to the presence of water on the road.
