Black Holes

4. Also known as the "point of no return" where nothing, including light, cannot escape; the outer perimeter of a black hole.
5. Protons and neutrons make up an object's _________, the amount of matter an object has.
8. A tunnel through spacetime to another point in spacetime.
10. The measurement of measuring periods between past, present, and future.
11. Black holes that have a mass of 5- several 10's of solar masses.
13. Black holes that have a mass of 10-100's of millions of solar masses.
14. Black holes have the greatest force of ___________.
15. A point or area in space that gives off no light radiation

1. The difference in elapsed time measured by two observers.
2. The fundamental theory of physics that describes how atoms and subatomic particles behave.
3. __________ mass is equal to the mass of our Sun.
6. The radius an object has to have for it to become a black hole.
7. The very center of a black hole where gravity becomes infinite.
9. A type of black hole that is extremely luminous and is also known as a quasi-stellar radio source..
12. The process of material being torn apart by a black hole like water swirling down a drain.