Activity 12.1 Class 8 Science Chapter 12 Solution

Activity 12.1 Class 8 Science Friction

In this post, you will find NCERT Science Class 8 Chapter 12Fricton activity 12.1 and after reading this, you can understand the concept of 'Friction' in daily life.

You are suggested to study NCERT activity 12.1 class 8 science explanation with a conclusion so that you can attempt questions based on activity 12.1 class 8 science.

Activity 12.1 Class 8 Science

   ·     Gently push a book on a table [Fig(a)].

   ·     You observe that it stops after moving for some distance.

   ·      Repeat this activity pushing the book from the opposite direction [Fig. (b)].

   ·     Does the book stop this time, too?

   ·     Can you think of an explanation?

   ·     Can we say that a force must be acting on the book opposing its motion?

   ·      This force is called the force of friction.

     

Observation and Explanation 

When the book is pushed on the surface of the table, it stops after moving some distance and when the book is pushed in the opposite direction, at this time it stops also.

It happens because a force acts on the book (any object) in the opposite direction of the motion. This force is known as a force of friction.

The force of friction acts between the surface of the book and the surface of the table.

Conclusion 

This activity explains the force of friction acting between two surfaces.

Related Topics

    1. Activity 12.2

  2. Activity 12.3