Activity 9.2 Class 9 Science Chapter 9 Force and Laws of Motion
Activity 9.2 Class 9 Science
belongs to Chapter 9 Force and Laws of Motion Class 9 Science. You will get a complete
solution with an explanation and a conclusion. After reading activity 9.2, you
will be able to answer the questions based on the activity.
Activity 9.2 Class 9 Science Chapter 9
You are suggested to study NCERT activity 9.2 class 9 science
chapter 9 explanation with a conclusion so that you can attempt questions based
on the activity 9.2 class 9 science.
Activity 9.2 Class 9 Science
· Set
a five-rupee coin on a stiff card covering an empty glass tumbler standing on a
table.
· Give
the card a sharp horizontal flick with a finger. If we do it fast then the card
shoots away. Allowing the coin to fall vertically into the glass tumbler due to
its inertia.
· The
inertia of the coin tries to maintain its state of rest even when the card
flows off.
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| law of Inertia |
Observation Activity 9.2 Class 9 Science
When we give the card a sharp strong horizontal flick
with a finger, the card shoots away and the five-rupee coin falls vertically
into the glass tumbler.
Explanation Activity 9.2 Class 9 Science
The five-rupee coin is at the rest and has a tendency to
remain in the same position according to the ‘Law of inertia or Newton’s
first law of motion
Inertia is the tendency
of an object to resist a change in tis state of motion or of rest.
Why does the coin fall into the tumbler?
The force we applied is so fast and quick so there is
no time for transfer of the force to the coin and the coin remains in the position
of rest, that’s why it falls vertically into the tumbler. This is due to the inertia
of rest.
Conclusion Activity 9.2 Class 9 Science
This activity explains ‘ Inertia of rest.
Frequently Asked Questions
1. What do you mean by the term 'Inertia"
Ans. It is the tendency or property of a body to resist or oppose any change in the state of rest or motion.
2. What is Newton's first law of motion?
Ans. According to this law, an object at rest or motion will remain at rest or in uniform motion unless an unbalanced force is applied to it.
3.What is the aim of activity 9.2 class 9 science ?
Ans. To explian law of Inertia.
Related Topic
1. Activity 9.3 Class 9 Science
2. Activity 9.1 Class 9 Science
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