1. Review for: Unit 3 – Kinematics

2. #1 In which section is the velocity zero?.

3. #2 In which section is the velocity negative?.

4. #3 The velocity in section A is…
0.2 km/hr
1 km/hr
5 km/hr
10 km/hr

5. #4 In which section is the velocity zero?. D B A

6. #5 During which interval does the object have the greatest velocity?. D B A

7. #6 What is the greatest velocity attained?
8 m/s
10 m/s
16 m/s D B A

8. #7 In which section is the object positively accelerating?. D B A

9. #8 The slope of a position vs. time graph indicates _____.
Acceleration
Velocity
Displacement
Distance

10. #9 The slope of a velocity vs. time graph indicates _____.
Acceleration
Velocity
Displacement
Distance

11. #10 A football player starts at the goal line and runs to the 50 yardline and back in 20 seconds. What is his average velocity?
0 yards/sec
2.5 yards/sec
5.0 yards/sec
1000 yards/sec
Cannot be determined without knowing acceleration

12. #11 During the flight of any projectile, the acceleration of the object is always ______.
Directed upward
Directed downward
Opposite its velocity
In the direction of motion

13. #12 An object can maintain constant speed, but still change velocity.
True
False

14. #13 An object can accelerate without changing its speed.
True
False

15. #14 An object is tossed upwards, during its flight up it…
Accelerates
Decelerates
Moves uniformly

16. #15 An object is tossed upwards. At the top of its flight….
it stops
its acceleration is zero
its acceleration is about 10 m/s2
Both A and C are correct

17. #16 On which hill will the ball roll down with increasing velocity but decreasing acceleration?

18. Questions? Comments? Criticisms? Concerns? Complaints?