EASY
8th CBSE
IMPORTANT
Earn 100

How does lubrication reduce friction?

Important Questions on Friction

EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 12 - Friction>EXERCISES>Q C
Give an example to show the effect of heat generated in a machine due to excessive friction.
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 12 - Friction>EXERCISES>Q D
What is the effect of friction on motion?
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 12 - Friction>EXERCISES>Q D
What causes friction between two surfaces in contact?
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 12 - Friction>EXERCISES>Q D
Why does a rough surface have greater friction than a smooth surface?
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 12 - Friction>EXERCISES>Q D
Give two situations where it is desirable to increase friction.
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 12 - Friction>EXERCISES>Q D
What is 'streamlining'? How is it useful?
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 12 - Friction>EXERCISES>Q E
Discuss three situations in daily life where friction is an advantage?
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 12 - Friction>EXERCISES>Q E
Explain with examples the disadvantages of friction.