Advertisements
Advertisements
प्रश्न
Fill in the blank.
Rolling friction offers ............. resistance than sliding friction.
Advertisements
उत्तर
Rolling friction offers less resistance than sliding friction.
APPEARS IN
संबंधित प्रश्न
Friction depends on the ______ of surfaces.
When a glass rod is rubbed with a piece of silk cloth the rod ______.
Sometimes, a crackling sound is heard while taking off a sweater during winters. Explain.
Fill in the blank.
We use ball bearings to .................. the friction.
Fill in the blank.
.................... is the SI unit of force.
Answer the following in a word or two or in a sentence.
Why does a rolling ball stop after moving some distance?
Fill in the blank.
The force of friction acting between two bodies in contact while at rest is known as ................ friction.
Fill in the blank.
Friction depends upon the ............... of an object.
Whenever the surfaces in contact tend to move or move with respect to each other, the force of friction comes into play
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.
