Advertisements
Advertisements
प्रश्न
Fill in the blank.
Friction depends upon the ............... of an object.
Advertisements
उत्तर
Friction depends upon the weight of an object.
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?
Select the correct alternative.
Friction is reduced by
Name the two kinds of forces in nature.
The eraser gets smaller and smaller as you use it more and more. Explain the reason.
Give three examples to illustrate that friction is a necessary evil.
Fill in the blank.
.................... is the SI unit of force.
Fill in the blank.
The force of friction acting between two bodies in contact while at rest is known as ................ friction.
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?
Analogy
Objects placed at rest on earth: ______:: Bodies slide over the surface on other body: ______.
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.
