MEDIUM
8th CBSE
IMPORTANT
Earn 100

Friction is necessary for walking. Why?

Important Questions on Friction

MEDIUM
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 12 - Friction>Exercises>Q D
Why does lubrication reduce friction?
MEDIUM
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 12 - Friction>Exercises>Q E
What are the factors affecting friction?
MEDIUM
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 12 - Friction>Exercises>Q E
How can you show that friction on a smooth surface is less than friction on a rough surface? Why is this so?
MEDIUM
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 12 - Friction>Exercises>Q E
Discuss three ways in which friction is an advantage in our daily life.
MEDIUM
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 12 - Friction>Exercises>Q E
What are the disadvantages of friction?
MEDIUM
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 12 - Friction>Exercises>Q E
Discuss three situations in which it is necessary to increase friction.
MEDIUM
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 12 - Friction>Exercises>Q E
Discuss three ways of reducing friction, giving a reason why each works.
MEDIUM
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 12 - Friction>Higher-order Thinking Skills>Q 1
Why is rolling friction less than sliding friction? (Hint Draw an illustration of the surfaces in contact in both cases. In which case is the area of the contact surface greater?)