Mini-Quiz: Gravitational Escape Velocity from a Black Hole

1. Why can't particles going faster than the speed of light escape from a Black Hole?

   They can escape; only light can't escapeGood try, but not right. Select another answer. There are no particles in a Black HoleSorry, not correct. Try another button. Matter cannot exceed the speed of lightThat is correct. You know about Black Holes.

2. What does the Schwarzschild radius equation prove?

   Schwarzschild was smarter than EinsteinSorry, not correct. Try another button. The escape velocity equation fits both classical and relativistic theoriesCorrect. You understand escape velocity. No one is really sure what it provesOops! Wrong answer. Re-read the question and try again.

3. What would happen if the radius of the Sun was compressed to 6 km?

   It would not be a Black HoleThat is correct. You know about Black Holes. The Earth would be the size of a peanutGood try, but not right. Select another answer. The speed of light would changeOops! Wrong answer. Re-read the question and try again.

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