10 Questions
According to the text, when does the force of friction come into play?
irrespective of whether the objects are solid, liquid or gaseous.
In Fig.12.1, which direction will the force of friction act on the box?
from left to right ((\Rightarrow))
To sharpen the blade of a knife by rubbing it against a surface, which of the following will be most suitable?
stone
On which surface will a toy car released with the same initial speed travel farthest?
polished marble surface
If we apply oil on door hinges, what will happen to the friction?
decrease
According to the text, does the force of friction only come into play if the objects are solid?
No, the force of friction comes into play irrespective of whether the objects are solid, liquid or gaseous.
In Fig.12.1, which direction will the force of friction act on the box?
The force of friction will act on the box from right to left.
To sharpen the blade of a knife by rubbing it against a surface, which of the following will be most suitable?
A stone will be most suitable for sharpening the blade of a knife.
On which surface will a toy car released with the same initial speed travel farthest?
A polished marble surface will make the toy car travel farthest.
If we apply oil on door hinges, what will happen to the friction?
The friction will decrease if we apply oil on door hinges.
Test your knowledge on the force of friction and its effects on objects in this quiz. Determine when friction occurs and which types of objects it applies to. Also, analyze a given scenario involving a boy pushing a box to understand the concept further.
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