1. P4 Explaining motion IP4.12 Walking graphs

2. P4 Explaining motion IP4.12 You will be shown a series of graphs. You have to walk along a line, so that your motion is the same as the graph shows. Each should take about 10 seconds. The exact time and distance is not important. Think about each one before you start to move. Walking graphs

3. P4 Explaining motion IP4.12 An easy one to start with... distance from starting point (m) 10 time (s) 10 0

4. P4 Explaining motion IP4.12 What’s happening here? Think carefully before you start. distance from starting point (m) 10 time (s) 10 0

5. P4 Explaining motion IP4.12 A three-part journey distance from starting point (m) 10 time (s) 10 0

6. P4 Explaining motion IP4.12 Going down? Think about what this means before you start. distance from starting point (m) 10 time (s) 10 0

7. P4 Explaining motion IP4.12 Negative distance! Again think about this before you start. distance from starting point (m) 10 time (s) 10 0

8. P4 Explaining motion IP4.12 Everything all at once! distance from starting point (m) 10 time (s) 100

9. P4 Explaining motion IP4.12 Why is this more realistic? distance from starting point (m) 10 time (s) 10 0

10. P4 Explaining motion IP4.12 Careful! This is a speed–time graph! speed (m/s) 2 time (s) 10 0

11. P4 Explaining motion IP4.12 An impossible task? Can this be done? speed (m/s) 2 time (s) 10 0

12. P4 Explaining motion IP4.12 A more realistic walk! speed (m/s) 2 time (s) 10 0

13. P4 Explaining motion IP4.12 A more complicated journey speed (m/s) 2 time (s) 10 0

14. P4 Explaining motion IP4.12 A little bit of everything speed (m/s) 2 time (s) 10 0

15. P4 Explaining motion IP4.12 Note: this graph shows velocity not speed. velocity (m/s) 2 time (s) 10 –2 0

16. P4 Explaining motion IP4.12 And finally... where should you end up here? velocity (m/s) 2 time (s) 10 –2 0