Across
- 3. events in the past present and future
- 4. the rate at which something or someone moves
- 8. increase in speed or rate
- 9. the length of space between two points
- 11. a body's relative mass
- 13. the speed of something in a given direction
Down
- 1. the action of moving something from its place
- 2. reduction in speed or rate
- 5. the degree of steepness of a graph at any point
- 6. a large body of matter with no definite shape
- 7. activity involving mental or physical effort
- 10. the resistance of a physical object
- 12. strength of energy or an action of physical action or movement