"Unit 2 - Describing Motion": HTML5 Crossword

Across

3. The property of things to resist a change in motion (7)
5. The vector sum of all forces acting on a non-accelerating object equals zero (11,4)
6. The unit of measure of mass (9)
9. Units for speed (6,3,6)
10. measures the total path taken (8)
14. Force of friction in the air (3,10)
17. Force that opposes motion (8)
18. Push or Pull on an object (5)
19. Units for distance (6)

Down

1. Support force that is at right angle to the surface (6)
2. a system for specifying the precise location of objects in space and time (5,2,9)
4. The total of all forces acting on the object (3,5)
6. Type of friction that occurs when the object is moving or in motion. (7)
7. The rate of change in velocity over time (12)
8. The quantity of matter in an object (4)
11. Measure of mass per unit of volume for a substance (7)
12. Motion under the influence of gravitational pull only (4,4)
13. the net change of an object's position (12)
15. an object's change in position relative to a reference point (6)
16. Standard unit of force in the SI (6)