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.
Physics Classroom
The Physics Classroom: Work and Energy: Energy Transformation on Roller Coasters
Using a roller coaster as an example, the transformation of mechanical energy from the form of potential to the form of kinetic and vice versa is explained and illustrated in the animation.
Physics Classroom
The Physics Classroom: Work and Energy: How High Will It Go?
This animation depicts the motion of a young child sliding across the snow on a sled. Students can analyze the work and energy involved in this scenario.
Physics Classroom
The Physics Classroom: Work, Energy, and Power: Internal vs. External Forces
Through illustrated examples and interactive examples, students learn about the two categories of forces are referred to as internal forces and external forces.
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)...