Kinematics in one dimension

What you'll learn

1. 1

   Imagine you're in a car 🚗 driving along a straight road. Your speedometer shows how fast you're going — that's your velocity. The distance you've travelled from your starting point is your displacement.

2. 2

   If you drive 3 km forwards and then 2 km backwards, what is your final displacement from the start?

3. 3

   Drag the car along the number line to show it moving 4 metres forwards, then 2 metres backwards.

4. 4

   A runner moves 8 m east, then 3 m west. What is their displacement?

5. 5

   A ball rolls 6 m right, then 4 m left. What is its displacement?

6. 6

   Use the number line to find the displacement: start at 2, move 5 m right, then 3 m left.

7. 7

   If displacement = 0, where are you compared to your starting point?