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Grade 8 Science Speed and Velocity - Lesson 1-1 Post Test



Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

How much time will it take for a person to walk the length of a football field (100 yards) at a constant speed of 5 ft/s?
a.
166 seconds
b.
60 seconds
c.
20 seconds
d.
33 seconds
 
 
Use the diagram below to answer question 2.


nar001-1.jpg
 

 2. 

Wendy ran from Point A to Point B, Point B to Point C, and then back to Point A. Calculate her speed.
a.
1.76 m/min
b.
1.49 m/min
c.
.45 m/min
d.
0.67m/min
 
 
Use the following diagram to answer questions 3 – 6
nar002-1.jpg
Distance                  Elapsed time
AB = 12km                  23s
BC = 15 km                  20s
CD = 7km                  14s
 

 3. 

An ant started at point A, and traveled to point D; it then traveled back to point B. What is the distance it traveled?
a.
72km
b.
98km
c.
68km
d.
78km
 

 4. 

Polar bears are extremely good swimmers and can travel as long as 10 hours without resting. If a polar bear is swimming with an average speed of .6 m/s, how far will it have traveled after 10.0 minutes?
a.
360m
b.
77m
c.
6.4km
d.
240m
 

 5. 

Suppose the polar bear were running on land instead of swimming. If the polar bear runs at a speed of about 8.3 m/s, how far will it travel in 10.0 minutes?
a.
4980m
b.
6000m
c.
.83m
d.
83m
 



 
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