Asked/Added Questions From NCERT:

Question 1. Asked on :22 August 2019:08:28:03 AM

 give example to show that friction is both a friend and foe

-Added by Sohail siddique Science » Friction


Akki chauhan

(i) Friction allows us to grip and catch different objects.

(ii)  It helps us to walk comfortably on the surface.

(iii) It help to minimize the speed or to stop the moving objects.

So, friction is friend and a Foe. 

-Answered by Akki chauhan On 22 August 2019:09:28:32 AM

Question 2. Asked on :22 August 2019:08:24:38 AM

 what is fluid friction?

-Added by Sohail siddique Science » Friction


Akki chauhan

Fluid friction describes the friction between layers of a viscous fluid that are moving relative to each other.This is called Fluid Friction.

-Answered by Akki chauhan On 22 August 2019:09:10:44 AM

Question 3. Asked on :22 August 2019:08:23:17 AM

 What is ball bearing?

-Added by Sohail siddique Science » Friction


Akki chauhan

A bearing in which the parts are separated by a ring of small freely rotating metal balls which reduce Friction.

A metal ball used in a ball bearing.

-Answered by Akki chauhan On 22 August 2019:09:21:19 AM

Question 4. Asked on :22 August 2019:08:20:19 AM

 What is friction force?

-Added by Sohail siddique Science » Friction


Master Purushottam

 The force which decrease the speed of any object.

-Answered by Master Purushottam On 22 August 2019:04:13:01 PM

Question 5. Asked on :18 August 2019:11:16:27 PM

 spring balance

-Added by Master Purushottam Science » Friction


Himanshi Verma

Spring balance is a device which is used to measuring the force acting on an object.

-Answered by Himanshi Verma On 19 August 2019:05:42:54 AM

Question 6. Asked on :17 April 2019:10:16:39 AM

 WHY do kabaddi players rub their hands with the soil?

-Added by Rohit Rajput Science » Friction


Himanshi Verma

 The kabaddi players rub their hands with the soil before the game start, because the soil increases the rough ness and hence the friction while catching the playerfirmly such that not to slip.

-Answered by Himanshi Verma On 21 April 2019:10:45:42 AM


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