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MAZER
Page 37
Standards-Based Assessment
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Interpreting Graphs
8.1.c, 8.1.f
The graph below is a distance-time graph showing a 50-meter race.
Distance-Time Graph of Foot Race
50
45
40
Distance (meters)
s8pe-101st-ca
35
Ashok
Angela
Juanita
Cameron
30
25
20
15
10
5
0
0
1
2
3 4 5 6 7
Time (seconds)
8
9 10
Study the graph and then answer the questions
that follow.
1. Which runner reached the finish line first?
a. Ashok
c. Juanita
b. Angela
d. Cameron
2. How far did Juanita run in the first 4 seconds of
the race?
a. 5 m
c. 25 m
b. 15 m
d. 35 m
3. How much time passed between the time Angela
finished the race and Cameron finished the race?
a. 1 s
b. 2 s
4. Which of the following setups would you use to
calculate Angela’s average speed during the race?
50 m
7m
c.
a. 6s
50 s
7s
b. 50 m
50 m
d. 7s
5. What can you say about the speed of all of
the runners?
a. They ran at the same speed.
b. They ran at a steady pace but at different speeds.
c. They sped up as they reached the finish line.
d. They slowed down as they reached the finish line.
c. 3 s
d. 4 s
Extended Response
Answer the two questions below in detail.
6. Suppose you are biking. What is the difference
between your speed at any given moment during
your bike ride and your average speed for the
entire ride? Which is easier to measure? Why?
7. Suppose you are riding your bike along a path that
is also used by in-line skaters. You pass a skater,
and another biker passes you, both going in the
same direction you’re going. You pass a family
having a picnic on the grass. Describe your motion
from the points of view of the skater, the other
biker, and the family.
Chapter 1: Motion 37
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