6.8D Measuring and Graphing Changes in Motion

The graph represents four runners in a race. Which line on the graph represents the runner who ran the entire race at a constant speed?

• Line A

• Line B

• Line C

• Line D

Tags

NGSS.MS-PS3-1

Scientists have measured a cheetah running across the savanna at 70 m/s. Which of these data accurately measured the cheetah's speed?

• 480 m in 6 s

• 600 m in 8 s

• 210 m in 3 s

• 450 m in 9 s

Tags

NGSS.MS-PS3-1

A runner's progress is graphed for 0 to 70 seconds. At which interval did the runner most likely stop before crossing a street?

• Between 10 and 20 s

• Between 20 and 40 s

• Between 40 and 60 s

• Between 60 and 70 s

Tags

NGSS.MS-PS3-1

Four students walk across a room, changing pace as they walk. Class members observe the four students, record notes, and create graphs of each student's motion. Which graph does NOT show a student's motion changing.

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Tags

NGSS.MS-PS3-1

What does a horizontal line represent on a distance-time graph?

• Positive acceleration

• Constant speed

• No motion

• Negative acceleration

Which statement best describes the motion of the object?

• The object moves forward at a constant speed, then slows down.

• The object slows down while moving forward, stops, and moves backwards.

• The object moves forward with an increasing speed and stops.

• The object moves forward at a constant speed and stops.

Which graph best represents the data from the table if time is always graphed on the x-axis?

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Tags

NGSS.MS-PS3-1

What conclusion can be made based on the data

• The graph shows an accelerating object

• The graph shows an object changing direction

• The graph shows an object at constant speed

• The graph shows a stationary object

Tags

NGSS.MS-PS3-1

During which time period would the object experience a change in direction?

• 0 to 20 seconds

• 30 to 40 seconds

• 20 to 30 seconds

• 25 to 35 seconds

The graph shows the speed of a car traveling on the highway. What is the average speed of the car?

• 300 km/h

• 60 km/h

• 50 km/h

• 12 km/h

Tags

NGSS.MS-PS3-1