MEDIUM
6th ICSE
IMPORTANT
Earn 100

Differentiate between rolling friction and sliding friction.

Important Questions on Force

HARD
6th ICSE
IMPORTANT
What do you think is likely to happen if both, the ball and the glass rod, are rubbed with silk and brought next to each other?
HARD
6th ICSE
IMPORTANT

Suppose you are playing tug-of-war. Team A has 5  members and team B has 5 members. Assume the force applied by each person by giving a random magnitude of forces and discuss the resultant force. Now, assume that team B is reduced to 4 members. Find out how much extra force each member of team B has to apply to compete with team A.

EASY
6th ICSE
IMPORTANT
The force that opposes the motion of a body over a surface is called applied force.
EASY
6th ICSE
IMPORTANT
Magnetic force is a contact force.
EASY
6th ICSE
IMPORTANT

Choose the odd one out. Give reasons for the choice.

Gravitational force, tension force, applied force.

EASY
6th ICSE
IMPORTANT

Choose the odd one out. Give reasons for the choice.

Lubricant, ball bearings, treaded patterns.

EASY
6th ICSE
IMPORTANT
Give an example of a non-contact force.
EASY
6th ICSE
IMPORTANT
Mention any two methods to minimise friction.