Sr-3/ Kepler's law

Sr-3/ Kepler's law

1. Ellipse

   • The ellipse may be seen to be a conic section, a curve obtained by slicing a circular cone. A slice perpendicular to the axis gives the special case of a circle.
   • The curves you get when you slice a cone are called conic sections and have many applications. Click on one for further details.

2. Orbit Eccentricity

   • The eccentricity of an ellipse can be defined as the ratio of the distance between the foci to the major axis of the ellipse. The eccentricity is zero for a circle. Of the planetary orbits, only Pluto has a large eccentricity.

3. Angular Momentum

   • The angular momentum of a rigid object is defined as the product of the moment of inertia and the angular velocity. It is analogous to linear momentum and is subject to the fundamental constraints of the conservation of angular momentum principle if there is no external torque on the object. Angular momentum is a vector quantity. It is derivable from the expression for the angular momentum of a particle

4. Websites

   • http://hyperphysics.phy-astr.gsu.edu/hbase/kepler.html
   • http://hyperphysics.phy-astr.gsu.edu/hbase/amom.html#amp