Across
- 2. mainly in Kg
- 4. is what keeps us on the ground
- 5. when only gravity affects something
- 6. usually in feet
- 8. increase in the rate or speed of something
- 10. unit of force
Down
- 1. fastest an object can move
- 3. opposite force in the air
- 7. is something that can change on each planet
- 9. what the moon does around the earth