Lesson 3 of 4
Distance-time graphs
Goal: Draw and interpret distance-time graphs.
A distance-time graph tells the story of a journey. The steeper the line, the faster the movement.
A: gentle slopeMoving slowly
B: flat lineNot moving
C: steep slopeMoving fast
- A straight line that slopes up shows a steady speed. A steeper line shows a faster speed.
- A flat line shows that the object is stationary. Time passes, but the distance does not change.
- A curved line shows that the speed is changing: the object is accelerating.
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Key words in this lesson
Speed How far something travels in a certain time
Distance How far something has moved
Time How long something takes
Distance-time graph Shows how far something has travelled at each moment of a journey
Steady speed A speed that stays the same
Stationary Not moving