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प्रश्न
Answer the following in short.
How can sliding friction be changed into rolling friction easily?
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उत्तर
Sliding friction can be changed into rolling friction easily by providing wheels or ball bearings to the objects to reduce friction and facilitate easy movement.
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संबंधित प्रश्न
Friction opposes the ______ between the surfaces in contact with each other.
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.
Give an example to illustrate the existence of the force of friction.
Tick the most appropriate answer.
Friction is offered by
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?
Is there any possibility of making a special device to measure the magnitude of friction directly?
In the following figure, a boy is shown pushing the box from right to left. The force of friction will act on the box
We have two identical metal sheets. One of them is rubbed with sand paper and the other with ordinary paper. The one rubbed with sand paper shines more than the other. Give reason.
