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Wednesday, September 28, 2022

Activity 11.8 Class 9 Science Chapter 11 Work and Energy

Activity 11.8 Class 9 Science Chapter 11


Activity 11.8 Class 9 Science belongs to Chapter 11 Work and Energy Class 9 Science. You will get a complete solution with an explanation and conclusion. After reading activity 11.8, you will be able to answer the questions based on the activity.


Activity 11.8 Class 9 Science Work and Energy

 

You are suggested to study NCERT activity 11.8 class 9 science chapter 11Work and Energy explanation with a conclusion so that you can attempt questions based on activity 11.8 class 9 science.


Activity 11.8 Class 9 Science


   ·     Take a rubber band.

   ·     Hold it at one end and pull from the other. The band stretches.

   ·     Release the band at one of the ends.

   ·     What happens?

   ·     The band will tend to regain its original length.   Obviously, the band had acquired energy in its stretched position.

·     How did it acquire energy when stretched.



Observation of activity 11.8 class 9 science


When a rubber band is pulled, it gets stretched and when released, it gets its original position.


 Explanation of activity 11.8 class 9 science


When the rubber band is pulled, it gets stretched and energy is stored in it due to work done on it.


The shape of rubber band changes and the energy stored in it due to a change in the shape is known as ‘Potential energy’.


When the rubber band is released, its potential energy is used in the form of kinetic energy, and the rubber band gets its original shape.


Conclusion of activity 11.8 class 9 science

This activity explains that energy is stored in any object when its shape is changed and this form of energy is known as Potential energy.



Related Topics 

1. Activity 11.9 Class 9 Science

2. Activity 11.7  Class 9 Science

2. NCERT Solutions of chapter 11

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