Across
- 3. the moment when two objects hit each other
- 4. the gravitational force acting on a object
- 7. speed in a particular direction
- 10. anything that takes up space and has mass
- 11. amount of matter in an object
- 13. acting on or going in the reverse direction
Down
- 1. a force between an object and the surface
- 2. mass times velocity
- 5. to apply a force
- 6. tendency for an object to resist motion
- 8. the same in quantity, size, degree or value
- 9. push or pull
- 12. how fast an object is going