Across
- 1. Any motion that an object does naturally - without being forced - was classified by Aristotle as a . . . motion
- 6. Scientist who was killed for proving that the sun is the center of the universe
- 8. The other unit of mass
- 9. The tendency of objects to maintain position
- 10. Scientist who formulated the law of inertia
- 12. One of Galileo's important discoveries to explain inertia
- 14. The force that appears to change the object's position
Down
- 2. The quantity showing the change of speed per unit of time
- 3. A vector quantity that shows how far an object has moved
- 4. The name of Copernicus' theory
- 5. The force needed to change the natural position of an object based on Aristotle's thought
- 7. The force of gravity acting on an object
- 11. The british unit of mass
- 13. a measure of the amount of material in an object