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प्रश्न
Define sliding friction
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उत्तर
The minimum force required to keep the body moving over a surface such that it moves equal distances in equal intervals of time is called the force of sliding friction.
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संबंधित प्रश्न
Write true or false.
Liquids offer more friction than the gases.
A body needs a force F1 just to start moving on a surface, a force F2 to continue its motion and a force F3 to roll on the surface. What is
- the static friction
- sliding friction and
- rolling friction? State whether F2 is equal, less than or greater than (1) F1 and (2) F3.
Fill in the blank.
.................... is the SI unit of force.
Fill in the blank.
More the roughness of a surface, greater is the ........................
Fill in the blank.
Weight remaining the same, friction is independent of ............. of surface in contact.
Tick the most appropriate answer.
Friction for an object can be reduced by
Fill in the blank
Rolling friction is ............. than sliding friction.
Fill in the blank.
Rolling friction is ........... than sliding friction.
Answer the following in a word or two or in a sentence.
Name a method used to reduce friction.
Answer the following in detail.
Write the characteristics of the force of friction?
