Speed, Velocity, Distance, and Displacement Practice Test



Speed, Distance, Displacement and Graphing Test Review

Name ________________________________________

A. Matching: Some words may be used more than once. (This is the only vocabulary that you need to study.)

reference point motion distance object at rest

speed calculator constant speed displacement

average speed calculator vector quantity

scalar quantity instantaneous speed

1.__________________________ - the speed at a specific instance of time

2. __________________________ - the distance traveled in a given amount of time

3. __________________________- the total distance traveled along a path divided by the time it takes to travel this distance

4. __________________________ - quantity having both magnitude and direction

5. __________________________- gives location of an object relative to a specific point

6. __________________________- quantity having only a magnitude or size

7. __________________________ - an object changes position over time when compared to a reference point

8. __________________________ - how far you are from your starting point

9.__________________________- an object that does not change its position in regards to a reference point

10. _________________________- speed that does not change

11. _________________________ - how far you have traveled

12. ________________________ - the tool you need to bring to class for the test

B. Classify the following as either vector or scalar quantities:

13. _____________________ 75 mph due north

14. _____________________ 45 mph

15._____________________ magnitude only

16._____________________ magnitude and direction

C. Problems (Remember, you must show your work to receive full credit. Give the equation used, the filled in equation, and final answer with appropriate units.)

Equations: s = d / t save = df - di

tf - ti

17. A train travels from Nashville to a small town in Alabama at an average velocity of 213 km/hr. The trip takes 1.5 hours.

Calculate how far the train traveled?

18. Your neighbor says she can skate at a speed of 6 m/sec. To see if you can skate faster, you have her time you as you skate as fast as you can for 110 m. Your time is 20 sec. Who skates faster? (Show your work. Don’t just give a final answer here.)

19. Florence Griffith Joyner set a world record by running 200 m in 21.34 sec. What was her average speed?

20. Sound travels at a speed of 330 m/sec. If a lightening bolt strikes the ground 2 km away from you, how long will it take for the sound to reach you?

21. Which of the following represents the greatest speed: 50 m/sec, 50 cm/sec, or 5 km/sec?

22. The following data were obtained for two runners.

| |Andy |Paul |

|Time |Distance |Distance |

|0 sec |0 m |0 m |

|1 sec |2m |1m |

|2 sec |4m |2m |

|3 sec |6m |2m |

|4 sec |8m |4m |

|5 sec |10 m |5 m |

a. Make a distance-time graph that shows the motion of both runners.

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b. What is the average speed of each runner?

c. What is the instantaneous speed of each runner 2s after he starts?

d. Which runner stops briefly?

e. During what time interval do Andy and Paul run at the same speed?

23. Use the diagram below to answer the following questions:

a. What type of graph is this?_______________________

b. What is the speed between point a and point b?

c. What is the speed between point b and point c?

d. What is the speed between point c and point d?

e. What is the speed between point d and point e?

f. What is the total displacement?

g. What is the total distance traveled?

h. Just by looking at the graph, where would you find the greatest speed?

i. Why can distance be a negative number?

24. Use the diagram below to answer the following questions:

This is a graph of two runners, Sam and Bubba.

a. Which runner is faster?____________________

b. Who gets a head start? __________________________

c. Does Sam travel at a constant speed? Explain your answer.

25. How does distance differ from displacement?

Use the graph to answer questions 26 - 27.

|A | | | | |G | |

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|D | | | | |J | |

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F | | | | |L | | | | |R | | | | |X | | | | |4 | | | | |$ | |Imagine the diagram above is a map. Each box represents 1 meter. (Pretend the boxes are perfect squares.)

26. a. If a runner starts at point G and runs to point Y, what is the total distance run?________

b. What is the displacement? ____________

c. If the runner turns around and goes back to point G, what is the total distance run? _______________

d. What is the displacement? _______________

27. a. If another runner starts at point C and runs to point O, then runs to point Q and continues to point E , what is the total distance run? _________

b. What is the displacement? ________________

28. Use the distance-time graph below to answer the questions.

9 | | | | | | | | | | |8 | | | | | | | | | | |7 | | | | | | | | | | |6 | | | | | | | | | | |5 | | | | | | | | | | |4 | | | | | | | | | | |3 | | | | | | | | | | |2 | | | | | | | | | | |1 | | | | | | | | | | |0 | | | | | | | | | | | 0 1 2 3 4 5 6 7 8 9

Time (minutes)

a. Determine the speed represented by the solid line at 3 minutes.

b. How long does the object represented by the solid line move?

c. Does this diagram represent constant speed? Use math to prove your choice.

d. Determine the speed represented by the dashed line at 6 minutes.

e. Which object is moving faster: the one represented by the solid line or the one represented by the dashed line.

f. How does the slope of the line relate to the speed of an object?

Multiple Choice

_____ 29. The best way to describe the rate of motion when an object changes speed several times is to calculate the object’s :

a. velocity b. average speed c. constant speed d. instantaneous speed

_____ 30. If an object moves backwards, it has a _______ position.

a. positive b. negative

_____ 31. A truck travels at 68 mph north for thirty minutes. This best represents:

a. constant speed b. instantaneous speed c. constant velocity

d. instantaneous velocity e. none of these

_____ 32. Which of the following is a physical quantity that has a magnitude, but not direction?

a. vector b. scalar c. resultant d. frame of reference

_____ 33. What is the speed of an object at rest?

a. 65 mph b. –35 mph c. 0 mph d. objects never rest

_____ 34. The SI unit for speed is:

a. m/sec b. km/hr c. m/hr d. km/ min e. all are correct

_____ 35. On a distance-time graph, a line with a negative slope indicates that the object is:

a. going forward b. going backwards c. standing still

_____36. On a distance-time graph, a line that is parallel with the time axis indicates that the object is:

a. going forward b. going backwards c. standing still

Fill in the Blank

_______________________ For what does SI stand?

_______________________ What is the old name for SI?

_______________________ Did you do the on-line review?

_______________________ Did you save the on-line review to study?

_______________________ Do you need a calculator for this test tomorrow?

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