1. A car starting from rest speeds up to 30 m/s with a constant acceleration over a time of 10 seconds. Then, it travels at 30 m/s for 10 seconds, and finally brakes to a stop in 20 seconds with a constant deceleration. Which of the following graphs represents its graph of speed versus time? C A B v v t v t t A B C D v D t

2. A car starting from rest speeds up to 30 m/s with a constant acceleration over a time of 10 seconds. Then, it travels at 30 m/s for 10 seconds, and finally brakes to a stop in 20 seconds with a constant deceleration. How far does it travel in the 40 second time period?
100 m
200 m
400 m
800 m
None of the above.

3. Driving a car at in the positive x direction at 60 MPH, Mary tests her brakes by coming to a complete stop in 8 seconds. Then she resumes speed, taking 4 seconds to return to 60 MPH. A motion diagram is created by illuminating her car with a strobe at 2 second intervals. Which of the following best represents the correct diagram? Mary’s car is represented by a dot.
Choice One
Choice Two
Choice Three
Choice Four A B C D

4. Driving a car in the positive x direction at 60 MPH, Mary tests her brakes by coming to a complete stop at a constant rate of deceleration in 4 seconds. Then she resumes speed, taking 8 seconds to return to 60 MPH. Which of the following graphs best represents her velocity?
Choice One
Choice Two
Choice Three
Choice Four
Five
six v
time v
time v
time v
time v
time v
time

5. Driving a car in the positive x direction at 60 MPH, Mary tests her brakes by coming to a complete stop in 4 seconds. Then she resumes speed, taking 8 seconds to return to 60 MPH. Which of the following best represents her acceleration?
Choice One
Choice Two
Choice Three
Choice Four a
time
A B C D

6. Driving a car in the positive x direction at 60 MPH (equivalent to 88 ft/sec), Mary tests her brakes by coming to a complete stop in 4 seconds. Then she resumes speed, taking 8 seconds to return to 60 MPH. What is the value for her acceleration while stopping?
88 ft/sec2
44 ft/sec2
22 ft/sec2
-22 ft/sec2
-44 ft/sec2
-88 ft/sec2

7. These questions exhibited 4 out of the 5
representations of a situation. In physics, you
should get used to using all of them.
Verbal
Pictorial
Physical
Graphical
Mathematical

8. a
time
Which of the graphs of velocity versus time could correspond to the graph of acceleration versus time shown on the right? v
time v
time
A B C v
time A B C D E v
time v
time
2 of 250
D E 36

9. a
time
Which of the graphs of distance versus time corresponds to the graph of acceleration versus time shown on the right? s
time
A B C
D E A B C D E
2 of 250 32

10. s
time
Which of the graphs of acceleration versus time corresponds to the graph of distance versus time shown on the right? a
time
A B C
D E A B C D E
2 of 250 26

11. A ball is launched vertically upward from ground level with an initial velocity of 30 m/s. How much time does it take before it lands on the ground? Use |g|=10 m/s2.
30 m/s +y
1 s
2 s
3 s
4 s
6 s
None of the above.
188 of 250 38

12. A ball is launched vertically upward from ground level with an initial velocity of 30 m/s. what maximum altitude does it reach above the ground? Use |g|=10 m/s2.
30 m/s +y
10 m
20 m
30 m
40 m
45 m
None of the above.
186 of 250 35

13. Upward, constant magnitude Upward, increasing magnitude
You throw a ball vertically upward. Which statement best describes the direction and magnitude of the ball’s acceleration while the ball is still moving up?
Upward, constant magnitude
Upward, increasing magnitude
Upward, decreasing magnitude
Downward, constant magnitude
Downward, increasing magnitude
Downward, decreasing magnitude
Zero acceleration
2 of 250 40

14. Upward, constant magnitude Upward, increasing magnitude
You throw a ball vertically upward. Which statement best describes the direction and magnitude of the ball’s velocity while the ball is still moving up?
Upward, constant magnitude
Upward, increasing magnitude
Upward, decreasing magnitude
Downward, constant magnitude
Downward, increasing magnitude
Downward, decreasing magnitude
Zero velocity
2 of 250 40

15. You throw a ball vertically upward
You throw a ball vertically upward. The ball moves up, reaches its highest point, and finally falls down. Which of the following graphs best represents the ball’s acceleration and velocity vs. time during the process?
Time v a A B D C A B C D
2 of 250 39