मराठी

Friction opposes the ______ between the surfaces in contact with each other.

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प्रश्न

Friction opposes the ______ between the surfaces in contact with each other.

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उत्तर

Friction opposes the motion between the surfaces in contact with each other.

Explanation:

This means that when two objects move or try to move past each other, friction resists their movement, acting in the opposite direction to slow them down or prevent motion altogether.

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Force of Friction
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पाठ 9: Friction - Exercises [पृष्ठ १२१]

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एनसीईआरटी Science [English] Class 8
पाठ 9 Friction
Exercises | Q 1. (a) | पृष्ठ १२१

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?


Write true or false.

The sliding friction is more than the rolling friction.


Write true or false.

Liquids offer more friction than the gases.


Fill in the blank.

We use ball bearings to .................. the friction.


Give an example to illustrate the existence of the force of friction.


Fill in the blank.

.................... is the SI unit of force.


Answer the following in a word or two or in a sentence.

Which type of force acts on a string pulled from both ends?


Answer the following in detail.

What are the various effects of force? State one example of each.


Fill in the blank.

Rolling friction offers ............. resistance than sliding friction.


Tick the most appropriate answer.

Friction is offered by


Tick the most appropriate answer.

Friction for an object can be reduced by


Tick the most appropriate answer.

Friction produces


Fill in the blank.

Rolling friction is ........... than sliding friction.


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.


Match the following.

  Column I Column II
a) Static friction viscosity
b) Kinetic friction least friction
c) Rolling friction objects are in motion
d) Friction between the liquid layers objects are sliding
e) Sliding friction objects are at rest

Explain how friction can be minimized.



In the following figure, a boy is shown pushing the box from right to left. The force of friction will act on the box


Friction depends on the ______ of two surfaces in contact.


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.


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