IB HL Physics. Spacetime diagrams
/A tutorial sheet on HL topic A.4 special relativity is given below.
- On a spacetime diagram the axes are inclined at 45° to each other. What does this mean?
- A spacetime diagram is drawn for observers in reference frames that are moving at a constant velocity of 0.8c relative to each other. When drawn on paper the unit length interval on the x and ct axes is 2.4 cm. Is the length interval on the x' and ct' axes less than, equal to or greater than this? Explain why and give its value.
