Lesson T2.1.2

T2.1.2 Distance-time graphs Quiz: KS3 Physics, Unit 2

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson T2.1.2, Distance-time graphs: 20 multiple choice questions for the KS3 Physics (National Curriculum), Unit 2: Motion and forces, written with Revision Ninja.

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The 20 questions

  1. On a distance-time graph, what does the gradient (slope) of a straight line represent?

    • Mass
    • Speed
    • Force
    • Acceleration

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

    • Accelerating object
    • Stationary object
    • Constant speed
    • Decelerating object

  3. What does a steeper gradient on a distance-time graph show?

    • Slower speed
    • Greater distance
    • Greater speed
    • Constant acceleration

  4. Which axis shows distance on a distance-time graph?

    • The vertical (y) axis
    • Neither axis
    • The horizontal (x) axis
    • Both axes

  5. What does a downward-sloping line on a distance-time graph indicate?

    • Returning to start
    • Stationary object
    • Moving faster
    • Slowing down

  6. A journey covers 60 km in a straight line on a distance-time graph taking 2 hours. What is the speed?

    • 2 km/h
    • 60 km/h
    • 120 km/h
    • 30 km/h

  7. A car travels 40 km in 1 hour, stops for 30 minutes, then travels 40 km in 1 hour. What is its average speed over the 2.5 hours?

    • 80 km/h
    • 27 km/h
    • 40 km/h
    • 32 km/h

  8. What does a horizontal section on a distance-time graph mean?

    • Constant speed
    • Moving backwards
    • Stationary
    • Accelerating

  9. On a distance-time graph with two lines starting at zero, which represents the faster object?

    • Shorter line
    • Flatter line
    • Curved line
    • Steeper line

  10. What does an upward-curving line on a distance-time graph indicate?

    • Increasing speed
    • Decreasing speed
    • Constant speed
    • Stationary

  11. On a distance-time graph, the distance is 0 m at t = 0 s and 12 m at t = 4 s on a straight line. What is the speed?

    • 0.33 m/s
    • 8 m/s
    • 48 m/s
    • 3 m/s

  12. What does the crossing point of two lines on a distance-time graph show?

    • Same speed
    • Same position
    • Zero speed
    • Maximum acceleration

  13. What does the horizontal axis show on a distance-time graph?

    • Distance
    • Time
    • Speed
    • Acceleration

  14. The distance-time graph of an object reaches 300 m at 10 s. What is its speed?

    • 310 m/s
    • 0.03 m/s
    • 30 m/s
    • 3000 m/s

  15. A walk starts at 0 m and reaches 500 m after 400 s. What is the speed?

    • 1.25 m/s
    • 200 m/s
    • 400 m/s
    • 0.8 m/s

  16. A journey has three parts: 0 to 2 min covering 120 m, 2 to 4 min stopped, and 4 to 6 min covering 240 m. What is the average speed over the 6 minutes?

    • 3 m/s
    • 1 m/s
    • 0.5 m/s
    • 2 m/s

  17. What is happening when a distance-time curve gets less steep?

    • Slowing down
    • Stationary
    • Speeding up
    • Constant speed

  18. Between t = 10 s and t = 20 s, the gradient of a distance-time line is 3 m/s. How far does the object move in that interval?

    • 30 m
    • 3 m
    • 300 m
    • 0.3 m

  19. Runner A reaches 100 m in 20 s and Runner B in 25 s. Who has higher average speed?

    • Runner A
    • Both equal
    • Cannot tell
    • Runner B

  20. A distance-time graph is a flat horizontal line from 5 s to 15 s. What is the speed in this interval?

    • Zero
    • 10 m/s
    • 15 m/s
    • 5 m/s

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