Gravitational Forces-Danilo and Divine

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Across
  1. 2. A particle with either positive or negative electrical charge
  2. 4. The area around a magnet or moving electrical charge that can exert a magnetic force
  3. 5. is a quantity that has only magnitude but no direction
  4. 8. A particle with either positive or negative electrical charge
  5. 9. Introduced law of universal gravitation
  6. 11. The size of quantity of something
  7. 13. A straight path that can object can move along
Down
  1. 1. Attractive or repulsive interaction between any two charged objects
  2. 3. Known because he Measured gravitational constant
  3. 6. The heaviness of an object force of gravity on mass= weight
  4. 7. A quantity that has magnitude(number) and direction.
  5. 10. The sum of all the forces acting on an object
  6. 12. force that is always attractive