मराठी

Explain why sportsmen use shoes with spikes.

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प्रश्न

Explain why sportsmen use shoes with spikes.

स्पष्ट करा
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उत्तर

Sportsmen wear shoes with spikes because they give them a better grip while running. The force of friction between the shoes and the ground increases with the help of spikes.

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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 6. | पृष्ठ १२१

संबंधित प्रश्‍न

Friction depends on the ______ of surfaces.


Fill in the blank.

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


Select the correct alternative. 

Friction is reduced by


Name the two kinds of forces in nature.


Name the three kinds of friction.


State if the following statement is true or false. Correct the statement if it is false.

Like charges always attract each other.


Fill in the blank.

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


Tick the most appropriate answer

Friction always


Tick the most appropriate answer.

Friction produces


Fill in the blank

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


Fill in the blank.

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


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.


State if the following statement is true or false. Correct the statement if it is false.

Friction is offered by all the three states of matter.


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.


A moving body comes to rest due to friction alone.



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


Assertion: There is a danger of a vehicle skidding on a wet road.
Reason: The tires of the vehicle lose their grip on the road due to an increase in friction due to the presence of water on the road.


Complete the analogy.

Knot in a thread : ______ friction :: Ball bearing : ______ friction.


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