Advertisements
Advertisements
प्रश्न
State if the following statement is true or false. Correct the statement if it is false.
Friction helps us to grip the objects in our hand.
पर्याय
True
False
Advertisements
उत्तर
True
APPEARS IN
संबंधित प्रश्न
Write true or false.
Liquids offer more friction than the gases.
Fill in the blank.
We use ball bearings to .................. the friction.
The eraser gets smaller and smaller as you use it more and more. Explain the reason.
Answer the following in short.
What do you understand by normal force?
Fill in the blank.
More the roughness of a surface, greater is the ........................
Fill in the blank.
Rolling friction offers ............. resistance than sliding friction.
Tick the most appropriate answer.
If you pour some oil onto a floor, the friction would
Answer the following in short.
How can sliding friction be changed into rolling friction easily?
Answer the following in detail.
Define friction and explain how it is useful to us.
Assertion: Friction always opposes the motion.
Reason: Whenever one surface moves or tries to move over another surface, the force of friction starts acting on the surfaces.
