Across
- 5. body of matter
- 8. strength or energy from a physical action
- 10. Slowing/Reduction in speed
- 11. an inclined ground/surface
- 12. The speed of something in a given direction
Down
- 1. The indefinite continuous progress
- 2. the length between two points
- 3. a tendency to remain unchanged
- 4. activity involving physical effort
- 6. the rate of which something travels
- 7. Gaining speed
- 9. a body of relative mass