EASY
8th CBSE
IMPORTANT
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Interlocking between two surfaces increases when they are pressed harder against each other.

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Important Questions on Friction

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.
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 10 - Friction>Check Point>Q 1
Rubbing palms against each other makes them _____ (cold/ normal/ warm).
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 10 - Friction>Check Point>Q 1
Friction causes _____ (more irregularities/ wear and tear) of machines.
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 10 - Friction>Check Point>Q 1
Soles of shoes wear out because of _____ (gravitation/ magnetic force/ friction).
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 10 - Friction>Check Point>Q 2
Smooth and shiny surfaces have zero friction.