MEDIUM
Earn 100

Which type of friction force acts on ball bearings.

Important Questions on Friction

EASY
Science>Physics>Friction>Increasing and Reducing Friction
Treads are made in the tyres to
EASY
Science>Physics>Friction>Increasing and Reducing Friction
Spikes in the shoes of athletes:
MEDIUM
Science>Physics>Friction>Increasing and Reducing Friction
Why are tyres of cars, buses, and trucks treaded?
EASY
Science>Physics>Friction>Increasing and Reducing Friction
Which of the following method is used to increase friction?
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Science>Physics>Friction>Increasing and Reducing Friction
A spacecraft landing and flying on the moon will face _____ drag.
EASY
Science>Physics>Friction>Increasing and Reducing Friction
A boy rolls a rubber ball on a wooden surface. The ball travels a short distance before coming to rest. To make the same ball travel longer distance before coming to rest, he may
EASY
Science>Physics>Friction>Increasing and Reducing Friction
Grooves in a tyre
EASY
Science>Physics>Friction>Increasing and Reducing Friction
Which of these is not an example of lubricant?
EASY
Science>Physics>Friction>Increasing and Reducing Friction
Which one of the following will reduce friction?
MEDIUM
Science>Physics>Friction>Increasing and Reducing Friction
Consider the following diagram which shows a box being pulled by force:
PBrush
Which one of the following actions will decrease the frictional force on the box?
EASY
Science>Physics>Friction>Increasing and Reducing Friction
Which of the following is used to reduce friction?
EASY
Science>Physics>Friction>Increasing and Reducing Friction
Huge ships have to fire their engines in the reverse direction before they reach the shore because of _____ offered by water.
EASY
Science>Physics>Friction>Increasing and Reducing Friction
The car driver is advised to drive slowly on a snowy day as the roads are slippery. This means the friction on the roads has
EASY
Science>Physics>Friction>Increasing and Reducing Friction
We can increase the friction by
EASY
Science>Physics>Friction>Increasing and Reducing Friction
A cubical body has surfaces 5 cm2, 20 cm2 and 10 cm2. It weights five newtons. The body is pulled by a spring balance to find the force of friction. The force of friction will be maximum with _____.
EASY
Science>Physics>Friction>Increasing and Reducing Friction
In fluids, the thicker the medium, the _____ is the frictional force.
EASY
Science>Physics>Friction>Increasing and Reducing Friction

Lubricants are?

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Science>Physics>Friction>Increasing and Reducing Friction
Ball-bearing is a device that usually converts:
EASY
Science>Physics>Friction>Increasing and Reducing Friction
Friction can be increased by _____.
EASY
Science>Physics>Friction>Increasing and Reducing Friction
Athletes wear spikes to increase :