Following your study of this chapter, you should be able to:
  • know what situations general relativity applies to
  • state the Principle of Equivalence
  • explain why astronauts orbiting around the earth feel a degree of equivalence
  • discuss how light is affected by a gravitational field
  • define gravitational redshift and be familiar with other tests of general relativity
  • cite some sources of gravitational radiation that could in theory be detected on earth
  • describe the process that leads to the formation of a black hole
  • define Schwarzschild radius, singularity and event horizon
  • calculate the radius of a black hole for a given mass
  • state some reasons why it is so difficult to detect a black hole
  • talk about frame dragging and the evidence that exists for it