EASY
Earn 100

Unscramble the word.

CITRIFON

50% studentsanswered this correctly

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:
MEDIUM
Science>Physics>Friction>Force of Friction
Earth is moving round the sun without any slowing down. Give the reason behind it by considering the force of friction.
EASY
Science>Physics>Friction>Force of Friction
State two advantages and two disadvantages of friction.
MEDIUM
Science>Physics>Friction>Force of Friction
What are the disadvantages of heat produced by friction in machines?
MEDIUM
Science>Physics>Friction>Force of Friction
Why do we call friction a 'necessary evil'?
EASY
Science>Physics>Friction>Force of Friction
Soles of shoes wear out because of _____ (gravitation/ magnetic force/ friction).
MEDIUM
Science>Physics>Friction>Force of Friction
Give reasons for the following:
Engine of a car gets heated on running.
EASY
Science>Physics>Friction>Force of Friction
Four similar cars having exactly the same mass are running at the same speed on the same road when brakes are applied at the same time. The cars come to a stop after covering distances of 5 m, 5.5 m, 4.8 m and 5.2 m respectively. The friction between the brake pads and discs will be the maximum in the car which travels the distance of:
EASY
Science>Physics>Friction>Force of Friction
Give an example where friction is beneficial.
EASY
Science>Physics>Friction>Force of Friction
Why does a matchstick light when we strike it on a rough surface?
EASY
Science>Physics>Friction>Force of Friction
Give an example where friction is a limitation.
MEDIUM
Science>Physics>Friction>Force of Friction
Why is friction called a necessary evil?
HARD
Science>Physics>Friction>Force of Friction
How friction plays an important role in our daily life?
MEDIUM
Science>Physics>Friction>Force of Friction
Would it be safe to walk on hardened snow with leather sole shoes? Explain giving reason.
MEDIUM
Science>Physics>Friction>Force of Friction
Which parts wear away first in shoes? Give a reason for your answer.
MEDIUM
Science>Physics>Friction>Force of Friction
State two disadvantages of friction.
EASY
Science>Physics>Friction>Force of Friction
Why is friction considered as 'Evil' of all motions? Explain with examples.
EASY
Science>Physics>Friction>Force of Friction
Cotyledons are also called-
EASY
Science>Physics>Friction>Force of Friction
Which of the following is not an advantage of friction?