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