Across
- 6. the rate of change of velocity
- 7. an amount of space between 2 people
- 8. the speed of something in a given direction
- 10. the strength and vitality required for sustained physical or mental activity.
- 13. when 2 forces are the same strength acting in opposite directions
- 14. resistance on an object from a surface
- 15. the measurment system for force
Down
- 1. the sum of all forces acting on an object
- 2. a course along which something or someone moves
- 3. a tendency to do nothing or remain unchanged
- 4. the force applied in one direction is greater that the force applied in the other direction
- 5. strength or energy
- 9. how fast something goes
- 11. the amount of matter in an object
- 12. moving or being moved