gravitational forces

123456789
Across
  1. 2. the mass of an object
  2. 6. measured by Henry Cavendish
  3. 8. a quantity that has only magnitude but no direction
  4. 9. pulls only one moon
Down
  1. 1. pulls more than 60 moons
  2. 3. a scientist that introduced the law of universal gravitation
  3. 4. instrument used by Cavendish to measure attraction
  4. 5. a push or pull that can change the motion of the object
  5. 6. a very weak force
  6. 7. a quantity that has a magnitude and direction