General Relativity

4. "Gravitational ___" The force of attraction exerted by a mass, such as the force keeping us from floating away on Earth.
6. To bend or distort. Massive objects warp or curve space-time around them.
9. A measure of the amount of matter in an object. Greater mass results in stronger gravity.
11. The boundary around a black hole beyond which nothing can escape. It’s the point of no return.
13. The force that attracts two bodies toward each other. It keeps us on the ground and makes objects fall.

1. The tendency of an object to resist changes in its motion. In general relativity, inertia can be influenced by gravity.
2. The amount by which space-time is bent by mass. More mass means greater curvature.
3. An area in space where gravity is so strong that nothing, not even light, can escape from it.
5. The combination of space and time into a single, four-dimensional continuum. It can be stretched and warped by objects.
7. The concept that space and time are interconnected and can change based on speed or mass.
8. The study of the universe’s origin, evolution, and eventual fate, using the principles of general relativity.
10. The effect where time appears to move slower in stronger gravitational fields or at higher speeds.
12. Ripples in space-time caused by massive objects moving, like merging black holes. Detected after being predicted by Einstein.