Gujarat BoardEnglish MediumSTD 8ScienceFriction4 Marks
Question
Write some disadvantages of force of friction.
✓
Answer
The disadvantages of force of friction are as follows:
$i.$ As we know that friction acts always in opposite direction of motion, so friction slows down any moving object.
$ii.$ Friction causes unnecessary heat when surfaces are rubbed against each other.
$iii.$ Friction can cause damage to machines having moving parts because of wear and tear.
$iv.$ Friction causes injuries when a person falls its skin gets peeled off due to friction only.
$v.$ Friction makes it difficult to push objects according to mass when we slide them. More the mass more the friction.
$vi.$ Friction cannot be finished completely but can be diminished to great extent.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.