Difference between revisions of "Gravitation"
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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 === | ||
| − | #[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] | |
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==Concept #2 - Gravitation acts at a distance == | ==Concept #2 - Gravitation acts at a distance == | ||
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#the motion of the planets around the Sun | #the motion of the planets around the Sun | ||
#the tides due to the moon and the sun | #the tides due to the moon and the sun | ||
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| − | === | + | ===Activities== |
| − | + | # Activity 3 - [http://karnatakaeducation.org.in/KOER/en/index.php/Gravitation_Activity_3 See Gravity in Action] | |
| − | + | # Activity 4 - [http://karnatakaeducation.org.in/KOER/en/index.php/Gravitation_Activity_4 Click to add] | |
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= Project Ideas = | = Project Ideas = | ||
Revision as of 10:25, 7 April 2014
| Philosophy of Science |
While creating a resource page, please click here for a resource creation checklist
What does this topic contain
- Introduction to Gravitation
- Universal Law of Gravitation
- Acceleration due to Gravity
- of Gravitational Force Significance of Gravitational Force
- Fun Applications
- Unit Outline for Gravitation
Concept Map
Error: Mind Map file Gravitation.mm not found
Textbook
To add textbook links, please follow these instructions to: (Click to create the subpage)
Additional information
Useful websites
- This is a college lecture by Prof Walter Levin explaining gravitation. Click here to see the video.
- Conceptual Physics
- Physics Classroom
Reference Books
The following textbooks are good references
- Conceptual Physics, Paul Hewitt, 10th Edition
- Physics for Scientists and Engineers, Douglas C. Giancoli, 3rd Edition
- Resnick & Halliday with Jearl Walker, 8th Edition
- NCERT Class 9 textbook Motion
- NCERT Class 9 textbook Laws of Motion
- NCERT Class 9 textbook Gravitation
An image of a concept map for gravitation
This is an image of a mind map developed by Shri Chaluvanarayanaswamy
Teaching Outlines
- Contact and Non-Contact Forces
- Understanding Contact Forces
- Gravitation acts at a distance
.
Concept #1 - Contact and Non-Contact Forces
Learning objectives
- Forces can act in contact
- Forces can act over a distance
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.
Forces can act at a distance and are called non-contact forces. To understand gravitation, we need to understand inertial and gravitational properties of mass. Gravity is one of the four fundamental forces. This document further discusses the concept of acceleration due to gravity and gravitational potential energy. Gravity is responsible for planetary motion and introduces the Kepler's laws of planetary motion.
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
- Activity 1 - The various forces we see
- Activity 2 - More about contact forces
Concept #2 - Gravitation acts at a distance
Learning objectives
- Gravitation is a field force
- It is very significant in explaining many events that we see
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. Gravitation explains several phenomena
- the force that allows us to move on Earth
- the motion of the moon around the Earth
- the motion of the planets around the Sun
- the tides due to the moon and the sun
=Activities
- Activity 3 - See Gravity in Action
- Activity 4 - Click to add
Project Ideas
Fun corner
Usage
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