IB Physics SL 6.4.2 Designing investigations Question Bank

Practise IB Physics SL/HL 6.4.2 by applying designing investigations concepts to exam-style physics questions.

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, fields or energy relationships

[Maximum number: 1]

A student investigates whether the Stefan-Boltzmann law, $L=4 \pi \sigma R^{2} T^{4}$ , applies to stars.
L= luminosity of the star, in W
$\sigma=$ Stefan-Boltzmann constant
R= radius of the star, in m
T= surface temperature of the star, in K
To verify the law, they obtain values from databases and manipulate the data as shown.

Table for Question S2.1.2—Designing investigations question 1 — IB Physics SL

Suggest a possible improvement of the investigation, related to the range of the surface temperatures of the stars selected.

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S2.1.2—Designing investigations question 1