Advertisements
Advertisements
प्रश्न
Is there any possibility of making a special device to measure the magnitude of friction directly?
Advertisements
उत्तर
Yes. Tribometer is a special device to measure the magnitude of friction directly.
APPEARS IN
संबंधित प्रश्न
Friction depends on the ______ of surfaces.
When a glass rod is rubbed with a piece of silk cloth the rod ______.
Select the correct alternative.
Friction is reduced by
The eraser gets smaller and smaller as you use it more and more. Explain the reason.
Tick the most appropriate answer.
If you pour some oil onto a floor, the friction would
Fill in the blank.
Smoother the surface, ................. is the frictional force offered by it.
State if the following statement is true or false. Correct the statement if it is false.
Friction has no relation with our walking or running.
Answer the following in short.
When you push something heavy, the resistance you feel decreases as soon as the object starts moving. Explain the reason.
Whenever the surfaces in contact tend to move or move with respect to each other, the force of friction comes into play
Assertion: We can live very happily if friction is not present in nature.
Reason: The airplane shape is streamlined to reduce the effort of frictional force.
