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Question 18M.3.SL.TZ2.b.i

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Date May 2018 Marks available [Maximum mark: 1] Reference code 18M.3.SL.TZ2.b.i
Level SL Paper 3 Time zone TZ2
Command term Calculate Question number b.i Adapted from N/A
b.i.
[Maximum mark: 1]
18M.3.SL.TZ2.b.i

Observer A detects the creation (event 1) and decay (event 2) of a nuclear particle. After creation, the particle moves at a constant speed relative to A. As measured by A, the distance between the events is 15 m and the time between the events is 9.0 × 10–8 s.

Observer B moves with the particle.

For event 1 and event 2,

calculate the spacetime interval.

[1]

Markscheme

spacetime interval = 272 – 152 = 504 «m2»

[1 mark]

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