Activity 11.12 Class 9 Science Chapter 11 Work and Energy

Activity 11.12 Class 9 Science Chapter 11

Activity 11.12 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 11.12, you will be able to answer the questions based on the activity.

Activity 11.12 Class 9 Science Work and Energy

 

You are suggested to study NCERT activity 11.12 class 9 science chapter 11Work and Energy explanation with a conclusion so that you can attempt questions based on activity 11.12 class 9 science.

Activity 11.12 Class 9 Science

   ·     Take a bamboo stick and make a bow.

   ·     Place an arrow made of a light stick on it with one end supported by the stretched string.

   ·     Now stretch the string and release the arrow.

   ·     Notice the arrow flying off the bow. Notice the change in the shape of the bow.

   ·     The potential energy stored in the bow due to the change of shape is thus used in the form of kinetic energy in throwing off the arrow.

      

Activity 11.12 Class 9 Science Chapter 11 Work and Energy

Observation of activity 11.12 class 9 science

When the string of the bow is stretched, its shape is changed and as it is released, again it comes in its original shape.

Explanation of activity 11.12 class 9 science

When the string of the bow is stretched, the bow bends, and its shape charges. Due to this elastic potential energy is stored in it.

When the stretched string is released, the potential energy is converted into kinetic energy which causes the arrow covers a large distance.

Conclusion of activity 11.12 class 9 science

This activity explains that due to changes in the shape of the object, elastic potential energy is stored in the object.

Related Topics 

1. Activity 11.13 Class 9 Science

2. Activity 11.11  Class 9 Science

2. NCERT Solutions of chapter 11