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...

Students use water balloons and a length of string to understand how gravity and the velocity of a spacecraft balance to form an orbit. They see that when the velocity becomes too great for gravity to hold onto an object, the object...

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...

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.

This site from NASA states Kepler's third law of motion and extends it to develop an equation for the velocity of an orbiting planet.