Across
- 4. force directed to the center of the Earth
- 5. results in object moving
- 8. force of forward motion
- 11. force that is perpendicular to a surface
- 12. force parallel to a surface against motion
- 13. different on Earth and the moon
- 14. states that forces come in pairs
- 15. force created by a string, rope, etc
Down
- 1. resistance to motion
- 2. change in velocity
- 3. object at rest stay at rest, object in motion stays in motion
- 6. results in object not moving
- 7. F = ma
- 9. push or pull
- 10. same on Earth and the moon