Advertisements
Advertisements
प्रश्न
Answer the following in a word or two or in a sentence.
Name a method used to reduce friction.
Advertisements
उत्तर
Oiling or lubricating.
APPEARS IN
संबंधित प्रश्न
Iqbal has to push a lighter box and Seema has to push a similar heavier box on the same floor. Who will have to apply a larger force and why?
Give examples to show that friction is both a friend and a foe.
What is the cause of friction?
When you apply brakes, the bicycle stops and the rim of the wheel becomes hot? Explain the reason.
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.
Answer the following in a word or two or in a sentence.
Why does a rolling ball stop after moving some distance?
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 a word or two or in a sentence.
Why is difficult for a pen to leave a mark on a highly smooth plastic sheet?
Answer the following in a word or two or in a sentence.
Name the force responsible for opposing the motion between two bodies in contact.
