DP Physics (first assessment 2025)

Test builder »

Question EXE.1A.HL.TZ0.12

Select a Test
Date Example questions Example questions Marks available [Maximum mark: 1] Reference code EXE.1A.HL.TZ0.12
Level HL Paper 1A Time zone TZ0
Command term Question number 12 Adapted from N/A
12.
[Maximum mark: 1]
EXE.1A.HL.TZ0.12

The spacetime diagram shows coordinate axes of reference frames of Earth (x, ct) and of a spaceship (x', ct'). Three events P, Q and R are plotted.

Which statement is correct about the order of the events according to an observer on the spaceship?


A.  P and Q are simultaneous, R happens later.

B.  Q and R are simultaneous, P happens earlier.

C.  Q and R are simultaneous, P happens later.

D.  P and R are simultaneous, Q happens earlier.

[1]

Markscheme

D

Syllabus sections