1. General Relativity Jeopardy Equivalence Principle Spacetime DiagramsBlack HolesCurved Space 10 20 30 40

2. The effects of gravity are exactly equivalent to the effects of acceleration.

3. Rocket ship on the left is floating free in space; one on the right is accelerating at 1 g. The person on the right feels this.

4. The reason the person on the left feels weightless.

10. According to general relativity, a black hole is this.

11. We would see a strong gravitational redshift of light near a black hole because of this running more slowly.

13. This happens to you well before you even reach the event horizon.

14. One way we can get more bending in spacetime.

15. The explanation for the Einstein cross.

16. The speed at which gravity waves travel.

17. One of the goals of Gravity Probe B was to measure this.