Gravitational Theory - Space

12345678910111213
Across
  1. 3. Ripples in spacetime caused by massive objects moving quickly, like two black holes colliding.
  2. 7. The amount of “stuff” or matter inside an object.
  3. 8. The speed an object needs to move fast enough to break free from a planet’s or star’s gravity.
  4. 10. The act of finding or measuring something that is normally hard to see or feel.
  5. 12. The path one object takes as it moves around another object because of gravity.
  6. 13. A place in space where gravity is so strong that nothing—not even light—can escape from it.
Down
  1. 1. The invisible area around an object where its gravity can pull on other objects.
  2. 2. A rule that says gravity gets much weaker as you move farther away from an object — and it decreases very quickly.
  3. 4. Binary Black Holes)Two massive objects (like black holes) orbiting each other.
  4. 5. (of spacetime)How space bends around mass. More mass = deeper bend.
  5. 6. (of a wave)How big the wave is — for gravitational waves, it’s how much space is stretched or squeezed.
  6. 9. A “fabric” that combines space and time. Objects with mass bend this fabric, and that bending is what we feel as gravity.
  7. 11. Pulling and stretching that happens when gravity is stronger on one side of an object than the other.