NASA
Nasa: The Space Place: Orbits 'R' Us
Learn about how Earth orbits the sun and how satellites orbit the Earth. Discover the different types of satellites such as GOES and POES and what they are used to monitor.
NASA
National Aeronautics and Space Administration: Scijinks: Satellites Technology
Describes satellites including what they are used for, important roles they play, how a weather satellite is built, and how a satellite stays in orbit using text and video of varying length.
NASA
Nasa: The Space Place: Sorting Out Trees in the Forest
This site from the National Aeronautics and Space Administration provides fun information on the subject. "people can do their jobs even better if they have very accurate images of the ground. Oddly enough, the best way to see lots of...
Physics Classroom
The Physics Classroom: Circular Motion Principles for Satellites
From The Physics Classroom. Uses easy- to-understand language to discuss how circular motion principles apply to the motion of satellites. Describes the tangential velocity and centripetal acceleration of a satellite. Includes many...
Physics Classroom
The Physics Classroom: Mathematics of Satellite Motion
The mathematics associated with the motion of satellites is described. Equations (for period, velocity, acceleration and force) are stated, symbols described, and sample problems solved. Includes five practice problems with solutions and...
Physics Classroom
The Physics Classroom: Energy Relationships for Satellites
The orbits of satellites are described and an energy analysis is performed. Kinetic, potential and total mechanical energy are explained and applied to the motion of satellites.
Georgia State University
Georgia State University: Hyper Physics: Earth Orbit Velocity
A discussion and statement of an equation for orbital speed. An interactive JavaScript form allows the user to investigate the relationship between orbital height and orbital speed. A very good opportunity to practice and receive...
Physics Classroom
The Physics Classroom: Satellite Motion
An animation depicting the path of projectiles launched at various launch speeds from the fictional Newton's Mountain. Accompanying text discusses satellite motion and the requirements of orbital motion. Links to further information is...
NASA
Nasa: Kepler's Second Law
This site from NASA states Kepler's second law of planetary motion and depicts its meaning with an informative diagram. Relates the law to conservation of energy principles and discusses the eccentricity of a satellite's (or a planet's)...
Georgia State University
Georgia State University: Hyper Physics: Global Positioning Satellites
The physics associated with global positioning satellites is discussed. The mechanism by which they triangulate the location of an object is described.
Georgia State University
Georgia State University: Hyper Physics: Circular Orbit
The necessity of gravitation to a circular orbit is discussed and equations for the orbital speed are derived from the law of universal gravitation. Binary systems in which two objects orbit about a center of mass are explained and...
NASA
Nasa: The Rocket Motor
An online version of a book pertaining to task of launching rockets into space and subsequently navigating them through space. The first several "chapters" (pages) describe the influence of gravity on Earth and the barriers which it...