Gravity

Description

Learn how to calculate the orbits of planets and satellites. Follow Newton's reasoning in deriving his universal gravitation law. Use the conservation of mechanical energy to find the escape velocity for a rocket. Extend these ideas to find the sizes of black holes. This resource consists of a video in eight sections with a supporting web page containing background material.

Content

• The link provides access to a video on the following topics, with animations and links to resources:
  • Newton’s law of universal gravitation
  • Cavendish’s experiment
  • acceleration of falling objects
  • gravitational potential energy
  • escape velocity and black holes
  • Kepler’s laws and universal gravitation
  • satellite orbits
  • orbits and energy.

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