General Relativity - What the math predicts

What happens to an object as it approaches the event horizon of a black hole?

• It becomes invisible immediately.

• It changes color to blue.

• It appears to slow down and freeze in time.

• It speeds up and disappears instantly.

What fundamental flaw in Newtonian gravity did Einstein address with his general theory of relativity?

• The incorrect calculation of gravitational force.

• The lack of a force between masses.

• The concept of action at a distance.

• The inability to explain the motion of planets.

What is the Schwarzschild radius?

• The distance from the center of a mass where spacetime is flat.

• The radius at which the escape velocity equals the speed of light.

• The distance at which time runs faster.

• The radius of a white dwarf star.

What did Subrahmanyan Chandrasekhar discover about electron degeneracy pressure?

• It can support stars of any mass.

• It has a limit and cannot support stars beyond a certain mass.

• It prevents all stars from collapsing.

• It is stronger than neutron degeneracy pressure.

What is a white hole?

• A type of neutron star.

• A region where everything is expelled outwards.

• A region where nothing can escape.

• A black hole with a different color.