IB Physics SL A.1.3 Displacement Question Bank
Practise IB Physics SL A.1.3 by calculating displacement and distinguishing it from distance in one- and two-dimensional motion.
- Syllabus
- First assessment 2025
- Course
- Physics SL
- Level
- SL
Practise IB Physics SL A.1.3 by calculating displacement and distinguishing it from distance in one- and two-dimensional motion.
This question is in two parts. Part 1 is about kinematics and gravitation. Part 2 is about radioactivity.
Part 1 Kinematics and gravitation
A ball is released near the surface of the Moon at time t=0. The point of release is on a straight line between the centre of Earth and the centre of the Moon. The graph below shows the variation with time t of the displacement s of the ball from the point of release.

State the significance of the negative values of s.
upwards (or away from the Moon) is taken as positive / downwards (or towards the Moon) is taken as negative / towards the Earth is positive;