1. Projectiles

2. The vertical acceleration for all projectiles is A.9.8 m/s 2, up B.zero C.9.8 m/s 2, down D.depends – need more info

3. What kind of path or trajectory does a projectile follow? A.Parabola B.Horizontal C.Vertical D.Expendental

4. The horizontal acceleration for all projectiles is A.9.8 m/s 2, up B.zero C.9.8 m/s 2, down D.depends – not enough info

5. The vertical initial velocity is represented by A.V ix B.V iy C.V fx D.V fy

6. The horizontal acceleration is represented by A.a y B.a x C.v x D.v y

7. d x Stands for A.Horizontal Distance B.Vertical Distance C.Horizontal Displacement D.Vertical Displacement

8. What physical quantity is the same for both horizontal and vertical motions? A.Vertical velocity B.Time C.Acceleration D.Horizontal Velocity

9. What is the vertical velocity at the top of the path of a projectile thrown straight up or launched at an angle? [Default] [MC Any] [MC All] A.9.8 m/s 2, up B.zero C.9.8 m/s 2, down D.depends – need more info

10. The vertical initial velocity for projectiles launched horizontally is A.9.8 m/s 2, up B.zero C.9.8 m/s 2, down D.depends – not enough info [Default] [MC Any] [MC All]

11. The vertical acceleration at the top of the path of a projectile is A.9.8 m/s 2, up B.zero C.9.8 m/s 2, down D.depends – need more info [Default] [MC Any] [MC All]

12. For projectiles that land at the same height from which they were launched, (choose all that apply) A.the vertical velocity at the end is equal (but opposite to) the vertical velocity at the beginning. B.the vertical velocity at the top is zero. C.the horizontal velocity at the top is zero. D.the horizontal velocity at the end is equal to the horizontal velocity at the beginning. [Default] [MC Any] [MC All]

13. A ball is thrown at 40° with a speed of 20 m/s. If it is caught at the same height as which it was thrown, what is the final vertical displacement? A.0 m B.8.5 m C.33.9 m D.40.2 m [Default] [MC Any] [MC All]

14. If Emily throws a shot-put straight up while traveling in a bus at a constant velocity, where will the shot-put land relative to her? A.In front of her B.Behind her C.Back into her hand D.Not enough info

15. A ball is thrown straight up with a speed of 4 m/s. How long does it take to get to its highest point? A..408 s B..816 s C.1.30 s D.2.45 s

16. A ball is thrown straight up with a speed of 4 m/s. How high does it go? A.0.816 m B.1.63 m C.3.26 m D.3.63 m

17. A cat runs off a flat garage roof at 5 m/s. If it takes him 1.5 s to hit the ground, how high was the garage roof? A.3.5 m B.7.5 m C.11.0 m D.18.5 m

18. A cat runs off a flat garage roof at 5 m/s. If it takes him 1.5 s to hit the ground, how far from the garage (horizontally) did the cat land? A.3.33 m B.3.83 m C.7.5 m D.15.3 m

19. A ball is thrown at 40° with a speed of 20 m/s. What is the vertical component of the initial velocity? A.12.9 m/s B.15.3 m/s C.16.8 m/s D.31.1 m/s

20. A ball is thrown at 40° with a speed of 20 m/s. How long is the ball in the air? A.1.32 s B.2.04 s C.2.63 s D.3.12 s

21. A ball is thrown at 40° with a speed of 20 m/s. How high does it go? A.1.02 m B.1.52 m C.8.49 m D.20.4 m

22. A ball is thrown at 40° with a speed of 20 m/s.How far does the ball travel (range)? A.17.0 m B.33.9 m C.40.3 m D.52.6 m