10. Gravitation-The Universal Law of gravitation Science Class 9 In English-CBSE Notes
Explore science cbse notes for Class 9 Chapter 10. Gravitation Topic The Universal Law of gravitation in English medium for exams preparation.
10. Gravitation-The Universal Law of gravitation Science Class 9 In English-CBSE Notes
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All Topics Chapter 10. Gravitation
- 1. The Universal Law of gravitation
- 2. Free Fall
- 3. Garavity (G) and Acceleration due to gravity (g)
- 4. Thrust And Pressure
- 5. page 5
- 6. page 6
- 7. page 7
Notes
10. Gravitation-The Universal Law of gravitation Science Class 9 In English-CBSE Notes
10. Gravitation
The Universal Law of gravitation
The Universal Law of gravitation:
Gravitational force:
All the heavenly bodies attract each other. There is a force which acts on. This force is called gravitational force.
In other words:
Gravitational force: The force attracting two objects is known as gravitational force.
Universal Law of Gravitaion:
The law of gravitation states that the force of attraction between any two objects is proportional to the product of their masses and inversely proportional to the square of the distance between them. The law applies to objects anywhere in the universe. Such a law is said to be universal.
This law gives a formula to find this force.
The value of G was found out by Henry Cavendish (1731 – 1810) by using a
sensitive balance.
The accepted value of G : 6.673 X 10-11 N m2 Kg-2
- The law is universal in the sense that it is applicable to all bodies, whether the bodies are big or small, whether they are celestial or terrestrial.
- The universal law of gravitation is given by Sir Isaac Newton.
IMPORTANCE OF THE UNIVERSAL LAW OF GRAVITATION
(i) The force that binds us to the earth;
(ii) The motion of the moon around the earth;
(iii) The motion of planets around the Sun;
(iv) The tides due to the moon and the Sun.
Centripetal force : When we moves a stone released with thread in a circular path with a certain speed, then it changes direction at every point. The change in direction involves change in velocity and acceleration. The force that causes this acceleration and keeps the body moving along the circular path is acting toward the centre. This force is called the centripetal force.
All Topics Chapter 10. Gravitation
10. Gravitation-The Universal Law of gravitation Science Class 9 In English-CBSE Notes
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CBSE Notes for Class 9 science Chapter 10. Gravitation – The Universal Law of gravitation
The CBSE Notes for Class 9 science Chapter 10. Gravitation – The Universal Law of gravitation are prepared to help students understand every concept in a simple, clear, and well-organized manner. These notes are based on the latest CBSE syllabus and are suitable for regular classroom learning, homework, revision, and examination preparation. Every topic is explained using easy language so that students can learn important concepts without difficulty and develop a strong academic foundation.
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10. Gravitation-The Universal Law of gravitation Science Class 9 In English-CBSE Notes Study Materials For Class 6 to 12
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