Across
- 2. it is always conserved in all types of collisions.
- 6. kinetic energy is conserved
- 8. energy that depends on mass and velocity.
- 9. a force directed towards the center
- 11. sticking together after collision
- 15. when to objects hit each other
- 16. it is a force between two objects which depends on their masses
- 17. laws a set of laws that describe motion in space
Down
- 1. unit for energy
- 3. used to describe something tangent to a circle
- 4. unit for force
- 5. Kepler's laws describe _______________motion
- 7. a force directed away from the center
- 10. used to describe orbits of planets
- 12. it exists in one of the two focal points of a planetary ellipse.
- 13. a rotational force
- 14. unit for mass