EASY
8th CBSE
IMPORTANT
Earn 100

Match the correct answer.

a. Static friction i. Less irregularities
b. Smooth surface ii. More irregularities
c. Sliding friction iii. Strong interlocking
d. Rough surface iv. Weak interlocking

Important Questions on Friction

EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 10 - Friction>Check Point>Q 2
All surfaces look uneven at the microscopic level.
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 10 - Friction>Check Point>Q 2
Opening of irregularities of two surfaces is called interlocking.
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 10 - Friction>Check Point>Q 2
Interlocking is much more between smooth surfaces than rough surfaces.
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 10 - Friction>Check Point>Q 2
Interlocking between two surfaces increases when they are pressed harder against each other.
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 10 - Friction>Check Point>Q 2
Sliding friction is always larger than static friction.
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 10 - Friction>Check Point>Q 2
It is easier to slide an empty box than a filled box.
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 10 - Friction>Check Point>Q 1
_____ (Normal force/ Frictional force) enables us to drive vehicles on roads.
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 10 - Friction>Check Point>Q 1
One _____ when walking on a smooth and greasy surface.