Physics
Grade-9
Easy
Question
Friction depends on the ____.
- Smoothness of the surface
- Roughness of the surface
- Both a and b
- None of the above
Hint:
The friction on two surfaces depends on the texture of the surface.
The correct answer is: Both a and b
Friction depends on the roughness or the smoothness of the surface.(Both a and b)
- The friction on two surfaces is dependent on the texture of the surface.
- The friction depends on the roughness or the smoothness of the surface.
- The rough surface has more friction and smooth surface has less friction.
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