Across
- 2. electrical
- 4. A particle with
- 7. mas x gravity
- 8. apple feel on his head
- 9. invisible space around gravity forces
- 10. Matter with a surplus or deficiency of electrons
Down
- 1. positive or
- 3. Having the tendency to pull other objects toward
- 5. Having the tendency to push other objects away
- 6. itself