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Across 5. how fast work is completed; vector; P = W/t; W 6. rate of change in velocity; vector; a = (Vf-Vi)/t; m/s^2 (squared) 9. "center seeking" force that keeps an object moving in a circle 10. energy due to motion; KE = 1/2mv^2 (squared); J 11. measured by an object's mass; tendency to maintain state of motion (moving/at rest); scalar; kg 12. object under the influence of gravity only (in freefall); has horizontal & vertical components 15. distance & gravitational force are ______ proportional (when 1 increases the other decreases) 17. component of a projectile that remains constant throughout its flight 18. quantity with magnitude & direction 19. "at rest" tells you that the _____ velocity (Vi) is 0 20. with centripetal force, the _____ is constant & the direction is always changing 26. energy due to position; stored energy; PE = mgh; J 28. quantity with direction only 29. rate of change in displacement; how fast & in what direction; vector; v = d/t; m/s

Down 1. force of attraction between 2 objects with mass is called universal __________ 2. applying a force over a distance; vector; W = Fd; J 3. force of gravity on a mass; vector; Fw = mg; N 4. how far & in what direction; vector; m 7. the ___ force is the sum of all forces acting on an object; vector; N 8. mass & gravitational force are _____ proportional (when 1 increases the other increases) 13. when an object is under the influence of gravity only 14. how far; scalar; m 16. path that a projectile follows; parabola or helf-parabola 19. change in momentum; Imp = Ft; N s 21. inertia in motion; product of mass & velocity; p = mv; kg m/s 22. component of a projectile that determines how long it is in the air 23. "comes to a stop" tells you that the ______ velocity (Vf) is 0 24. push/pull; vector; N 25. rate of change in distance; how fast; scalar; s = d/t; m/s 27. the amount of matter in an object; measure of an object's inertia; scalar; kg