Changes

#Forces can act in contact

#Forces can act in contact

#Forces can act over a distance

#Forces can act over a distance

===Notes for teachers===

=====Notes for teachers=====

''These are short notes that the teacher wants to share about the concept, any locally relevant information, specific instructions on what kind of methodology used and common misconceptions/mistakes.''

''These are short notes that the teacher wants to share about the concept, any locally relevant information, specific instructions on what kind of methodology used and common misconceptions/mistakes.''

In everyday life, gravitation is most familiar as the cause due to which masses fall to the ground. Gravitation causes dispersed matter to coalesce, and coalesced matter to remain intact, thus accounting for the existence of the Earth, the Sun, and most of the macroscopic objects in the universe. Gravitation is responsible for keeping the Earth and the other planets in their orbits around the Sun; for keeping the Moon in its orbit around the Earth; for the formation of tides; for natural convection, by which fluid flow occurs under the influence of a density gradient and gravity; for heating the interiors of forming stars and planets to very high temperatures; and for various other phenomena observed on Earth and the Universe. These are some of the questions we will explore here.

In everyday life, gravitation is most familiar as the cause due to which masses fall to the ground. Gravitation causes dispersed matter to coalesce, and coalesced matter to remain intact, thus accounting for the existence of the Earth, the Sun, and most of the macroscopic objects in the universe. Gravitation is responsible for keeping the Earth and the other planets in their orbits around the Sun; for keeping the Moon in its orbit around the Earth; for the formation of tides; for natural convection, by which fluid flow occurs under the influence of a density gradient and gravity; for heating the interiors of forming stars and planets to very high temperatures; and for various other phenomena observed on Earth and the Universe. These are some of the questions we will explore here.

===Activities ===

 

=====Activities =====

#Activity 1 - [http://karnatakaeducation.org.in/KOER/en/index.php/Gravitation_Activity_1 The various forces we see]

#Activity 1 - [http://karnatakaeducation.org.in/KOER/en/index.php/Gravitation_Activity_1 The various forces we see]

#Activity 2 - [http://karnatakaeducation.org.in/KOER/en/index.php/Gravitation_Activity_2 More about contact forces]

#Activity 2 - [http://karnatakaeducation.org.in/KOER/en/index.php/Gravitation_Activity_2 More about contact forces]

==Concept #2 - Gravitation acts at a distance ==

====Concept #2 - Gravitation acts at a distance ====

===Learning objectives===

=====Learning objectives=====

#Gravitation is a field force

#Gravitation is a field force

#It is very significant in explaining many events that we see

#It is very significant in explaining many events that we see

===Notes for teachers===

=====Notes for teachers=====

''These are short notes that the teacher wants to share about the concept, any locally relevant information, specific instructions on what kind of methodology used and common misconceptions/mistakes.''

''These are short notes that the teacher wants to share about the concept, any locally relevant information, specific instructions on what kind of methodology used and common misconceptions/mistakes.''

Gravitation explains several phenomena  

Gravitation explains several phenomena  

# Activity 4 - [http://karnatakaeducation.org.in/KOER/en/index.php/Gravitation_Activity_4 Click to add]

# Activity 4 - [http://karnatakaeducation.org.in/KOER/en/index.php/Gravitation_Activity_4 Click to add]

 

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