Gravitational forces -lizzy :)

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Across
  1. 3. pulling objects towards each other.
  2. 5. equaled 6.693 10-11 cubic kilograms per second
  3. 8. man who introduced the law of universal gravitation
  4. 10. a quantity that has magnitude and direction
Down
  1. 1. the force always acting on every ting
  2. 2. how far something is away
  3. 4. how much matter that's in a substance
  4. 6. a quantity that has magnitude but no direction
  5. 7. The gravitational constant was measured by him
  6. 9. the heaviness of an object