EASY
8th CBSE
IMPORTANT
Earn 100

An example of rolling friction is:

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Important Questions on Friction

EASY
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 12 - Friction>Exercise>Q 1
What do you understand by 'streamlined shape'?
MEDIUM
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 12 - Friction>Exercise>Q 2
What are lubricants? Give one example.
MEDIUM
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 12 - Friction>Exercise>Q 1
Mention some methods of increasing friction.
MEDIUM
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 12 - Friction>Exercise>Q 2
Why do you think rolling friction is less than sliding friction?
MEDIUM
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 12 - Friction>Exercise>Q 3
Nitika is getting late and so she drives her car in high speed. Suddenly, she sees a small child crossing the road. She immediately applies brakes and saves the child. What happens when we apply brakes? 
MEDIUM
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 12 - Friction>Exercise>Q 1

Give reasons for the following :

The bodies of birds are streamlined.

MEDIUM
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 12 - Friction>Exercise>Q 1
Give reasons for the following : When we strike a matchstick against the rough surface, it catches fire. 
EASY
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 12 - Friction>Exercise>Q 1
Give reasons for the following statement.
There are grooves in the tyres.