Friction and its effects — task. Science State Board, Class 8.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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Choose the best option:

1. Select the proper relation from the options below: (Question has more than one answer)

Rolling friction > Sliding friction
Rolling friction < Sliding friction
Sliding friction > Rolling friction

2. Moving an object which is lighter in weight is easier when compared to moving a heavier object because,

force needed to be applied is lesser in moving lighter object when compared to heavier object
force needed to be applied is higher is same when compared to heavier object
force needed to be applied is higher in moving lighter object when compared to heavier object

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