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=== Activity 4 - Demonstration of satellite motion using simulation ===
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The following simulation can illustrate how satellite motion takes place. <br>
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[http://phet.colorado.edu/sims/gravity-and-orbits/gravity-and-orbits_en.jnlp Click to run PhET simulation]
         
5. www.hyperphysics.com - From Classical Mechanics to General Relativity - This is a good description of the geometry of Newtonian gravity and how to move from classical mechanics to relativity.
 
5. www.hyperphysics.com - From Classical Mechanics to General Relativity - This is a good description of the geometry of Newtonian gravity and how to move from classical mechanics to relativity.
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8. http://www.physicsclassroom.com/Class/circles/U6L4b.cfm -This website describes the mathematics of orbital motion.
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9. http://spaceflight.nasa.gov/gallery/images/station/crew-9/html/iss008e21996.html
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<br>
      
= Keywords =
 
= Keywords =
    
Mass, Inertial, Gravitational, Force field, Universal law of gravitation, Acceleration due to gravity, “g”, weight, weightlessness
 
Mass, Inertial, Gravitational, Force field, Universal law of gravitation, Acceleration due to gravity, “g”, weight, weightlessness

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