MEDIUM
Earn 100

Write two advantages and two disadvantages of friction.

Important Questions on Friction

EASY
Science>Physics>Friction>Force of Friction
Calculate the number of electrons constituting one coulomb of charge.
MEDIUM
Science>Physics>Friction>Force of Friction
A body has a negative charge of 1 μc. It means the body has gained:
EASY
Science>Physics>Friction>Force of Friction
Name the force which always opposes motion.
EASY
Science>Physics>Friction>Force of Friction
What makes it hard to slide heavy objects across the floor?
MEDIUM
Science>Physics>Friction>Force of Friction
What is friction?
EASY
Science>Physics>Friction>Force of Friction
What is the direction of force of friction acting on a moving object?
HARD
Science>Physics>Friction>Force of Friction
What is frictional force? What are its advantages and disadvantages?
MEDIUM
Science>Physics>Friction>Force of Friction
Suppose your writing table (or desk) is tilted a little. A book kept on the table starts sliding down. Draw a diagram to show the direction of force of friction acting on the book.
MEDIUM
Science>Physics>Friction>Force of Friction
Tyres and soles of shoes wear out because of friction.
EASY
Science>Physics>Friction>Force of Friction
Friction always opposes motion. 
HARD
Science>Physics>Friction>Force of Friction
List any two advantages and two disadvantages of friction.
EASY
Science>Physics>Friction>Force of Friction
Give an example to show that friction is a beneficial force. 
EASY
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 _____.
MEDIUM
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
Why does a fast car slow down if its engine is switched off?
EASY
Science>Physics>Friction>Force of Friction
Friction causes no damage to tyres, soles of shoes, or machine parts.
EASY
Science>Physics>Friction>Force of Friction
Give an example to show the harmful effect of friction.
EASY
Science>Physics>Friction>Force of Friction
A force that can slow down the movement of an object _____.
EASY
Science>Physics>Friction>Force of Friction
Cotyledons are also called-
EASY
Science>Physics>Friction>Force of Friction
Electrostatic force makes it possible for us to walk.