EASY
8th CBSE
IMPORTANT
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The force of friction acts along a direction which is opposite to the direction of motion of the body. 

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Important Questions on Friction

EASY
8th CBSE
IMPORTANT
Frank Experience Science>Chapter 12 - Friction>EXERCISES>Q 2
Sliding friction is more than static friction. 
MEDIUM
8th CBSE
IMPORTANT
Frank Experience Science>Chapter 12 - Friction>EXERCISES>Q 3
It is always easier to pull luggage that is fitted with rollers.
EASY
8th CBSE
IMPORTANT
Frank Experience Science>Chapter 12 - Friction>EXERCISES>Q 4
Rolling friction is less than sliding friction. 
EASY
8th CBSE
IMPORTANT
Frank Experience Science>Chapter 12 - Friction>EXERCISES>Q 5
A streamlined shape reduces fluid friction. 
MEDIUM
8th CBSE
IMPORTANT
Frank Experience Science>Chapter 12 - Friction>EXERCISES>Q 1
Why do the soles of our shoes wear out gradually? 
MEDIUM
8th CBSE
IMPORTANT
Frank Experience Science>Chapter 12 - Friction>EXERCISES>Q 2
Why are the tyres of vehicles (such as cars) made corrugated and rough? 
MEDIUM
8th CBSE
IMPORTANT
Frank Experience Science>Chapter 12 - Friction>EXERCISES>Q 3
What is the direction of frictional force? 
MEDIUM
8th CBSE
IMPORTANT
Frank Experience Science>Chapter 12 - Friction>EXERCISES>Q 4
What enables us to fix nails in the walls?