Across
- 4. attracts forces
- 6. how heavy or light an object is
- 7. a force that pulls you down
- 9. a force generated in matter by the motion of electrons within its atoms
- 10. massive body in space that surronds its self
- 11. type of energy
Down
- 1. branch of physics
- 2. the amount of space an object takes up
- 3. a physical force of attraction between objects
- 5. planets
- 8. the region of space surrounding a body,