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Mini-Quiz: Gravitational Escape Velocity from a Black Hole

by Ron Kurtus (revised 8 March 2011)

Take this Mini-Quiz to check your understanding of the lesson material.



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

They can escape; only light can't escape

There are no particles in a Black Hole

Matter cannot exceed the speed of light

2. What does the Schwarzschild radius equation prove?

Schwarzschild was smarter than Einstein

The escape velocity equation fits both classical and relativistic theories

No one is really sure what it proves

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

It would not be a Black Hole

The Earth would be the size of a peanut

The speed of light would change

If you got all three correct, you are on your way to becoming a Champion in Physics. If you had problems, you had better look over the material again.


Don't get stuck in a job that is a "black hole" for you


Resources and references

The following resources can be used for further study on the subject.

Web sites

What is escape velocity? - From PhysLink

Escape Velocity - From Wikipedia

Gravitation Resources

Books

You can purchase these books in your local bookstore or through Amazon.com.

Top-rated books on Escape Velocity and Space Travel


Questions and comments

Do you have any questions, comments, or opinions on this subject? If so, send an email with your feedback. I will try to get back to you as soon as possible.


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