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IB Physics HL A.5.14 World lines and speed Question Bank

Practise IB Physics HL A.5.14 by applying world lines and speed concepts to exam-style physics questions.

Syllabus
First assessment 2025
Course
Physics HL
Level
HL

Exam points

  • identify the relevant physical quantity, model or diagram
  • apply the correct equation and units to the evidence
  • justify the result using conservation laws, forces or energy relationships

A.5.14 (HL)—World lines and speed question 1

[Maximum number: 1]

The space-time diagram shows the coordinate axes (x, c t) of an inertial reference frame S. Two events, P and Q, are plotted.

Figure for Question A.5.14 (HL)—World lines and speed question 1 — IB Physics HL

Events P and Q occur simultaneously in an inertial reference frame SS^{\prime}. The clocks of S and SS^{\prime} are synchronized at x=x=0x=x^{\prime}=0.

Determine the speed of SS^{\prime} relative to S.

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