Electrical and Gravitational Forces

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Across
  1. 4. an unbalanced number of electrons and protons, usually positive or negative
  2. 6. the movement of two objects away from each other
  3. 7. the amount of matter in an object
  4. 9. the force of gravity on an object
  5. 10. electric charge that does not flow
Down
  1. 1. the attractive or repulsive force between two or more charged objects
  2. 2. one thing increases, the other also increases
  3. 3. force of attraction between two or more masses
  4. 5. one thing increases, the other decreases
  5. 8. a force that draws objects toward each other