science
Grade-3
Easy
Question
A ____ surface offers more friction when rubbed against any other surface.
- Smooth
- Rough
- Plane
- Polished
The correct answer is: Rough
We are able to walk properly because of the friction between the soles of our shoes and the road but it is difficult to walk on ice, as ice has a smooth surface that offers less friction.
Hence, a rough surface offers more friction.
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