EASY
Earn 100

Name the force that always opposes the force causing the movement of an object. It is an eight-letter word, and it starts with the letter 'F'.

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Important Questions on Friction

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Science>Physics>Friction>Force of Friction
Calculate the number of electrons constituting one coulomb of charge.
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Science>Physics>Friction>Force of Friction
A body has a negative charge of 1 μc. It means the body has gained:
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Science>Physics>Friction>Force of Friction
Why does a fast car slow down if its engine is switched off?
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Science>Physics>Friction>Force of Friction
Friction causes no damage to tyres, soles of shoes, or machine parts.
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Science>Physics>Friction>Force of Friction
A force that can slow down the movement of an object _____.
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Science>Physics>Friction>Force of Friction
A big wooden box is being pushed on the ground from east to west direction. The force of friction due to the ground will act on this box towards _____.
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Science>Physics>Friction>Force of Friction
_____ (Friction/gravity) makes it hard to slide a heavy object across a surface.
EASY
Science>Physics>Friction>Force of Friction
Name the force which always opposes motion.
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Science>Physics>Friction>Force of Friction
Cotyledons are also called-
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Science>Physics>Friction>Force of Friction
What is friction?
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Science>Physics>Friction>Force of Friction
What makes it hard to slide heavy objects across the floor?
EASY
Science>Physics>Friction>Force of Friction
Friction always opposes motion. 
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Science>Physics>Friction>Force of Friction
A car is moving towards North. What will be the direction of force of friction acting on this car due to surface of road?
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Science>Physics>Friction>Force of Friction
Why do we slip on a wet floor?
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Science>Physics>Friction>Force of Friction
What is the direction of force of friction acting on a moving object?
EASY
Science>Physics>Friction>Force of Friction
Electrostatic force makes it possible for us to walk.
EASY
Science>Physics>Friction>Force of Friction
Give an example to show that friction is a beneficial force. 
HARD
Science>Physics>Friction>Force of Friction
What is frictional force? What are its advantages and disadvantages?
EASY
Science>Physics>Friction>Force of Friction

(a) Name two magnetic poles which attract each other.

(b) Name two magnetic poles which repel each other.

MEDIUM
Science>Physics>Friction>Force of Friction
Tyres and soles of shoes wear out because of friction.