Motion Vocab

2. Speed in a given direction
4. Equal forces acting on an object in opposite directions
6. Forces that can cause change in motion
10. A measure of how much matter is in an object
12. Unit used to measure force
13. A force that moves rocks and other materials downhill.
14. Law of Intertia; Objects will continue to move until something stops them.
15. Distance and time
16. Speed that changes over time.
18. Resistance to change in motion
19. Action/Reaction; Every action has an opposite and equal reaction.
20. A graph with distance on the vertical axis and time on the horizontal axis

1. The combination of all forces acting on an object
3. A push or a pull
5. A force that opposes motion between two surfaces that are in contact
7. Moving at a steady rate over time
8. The overall rate of speed at which an object moves; (total distance / total time)
9. F = MA; Heavier objects take more force to move.
11. The rate at which velocity changes
17. An object's change in position relative to a reference point